TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Marinović, Sanja
AU  - Banković, Predrag
AU  - Silva, Ana G.
AU  - Bundaleski, Nenad
AU  - Ajduković, Marija
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7856
AB  - Smectite rich bentonite clay (fraction containing particles up to 2 μm in diameter, from Bogovina,
Serbia) was used as started material for catalyst synthesis. The intercalation of chitosan into the
smectite structure was first step in the catalyst synthesis. The catalytically active species (Co2+)
was introduced by wetness impregnation method onto chitosan-smectite nanocomposite in the
second step. Obtained cobalt-chitosan-smectite composite (Co/Ch-S) was mixed by NaHCO3 in
mass ratio 1:3, and the mixture was submitted to the carbonization process in an inert atmosphere
of nitrogen at 500⁰ C for 60 min. After carbonization process, the catalyst was rinsed by 1M HCl
and distilled water until neutral reaction, dried and denoted as Co/CACh-S. Characterization was
performed by XRPD, XPS, SEM, and TEM methods. The Co/CACh-S was tested in reaction of
oxidative degradation of antibiotic ciprofloxacin in the presence of Oxone® as a source of sulfate
anion radicals. The degradation of ciprofloxacin was monitored using UV-Vis spectrophotometry
at wavelength of 277 nm within 240 min. It was found that 77% of ciprofloxacin was degraded
after 240 minutes of the reaction using Co/CACh-S catalyst.
PB  - Serbian Ceramic Society
C3  - Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
T1  - The influence of NaHCO3 as a porogen on cobalt-carbon-smectite catalysts synthesis: characterization and application in Oxone® induced degradation of antibiotic
SP  - 54
EP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_cer_7856
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Marinović, Sanja and Banković, Predrag and Silva, Ana G. and Bundaleski, Nenad and Ajduković, Marija",
year = "2024",
abstract = "Smectite rich bentonite clay (fraction containing particles up to 2 μm in diameter, from Bogovina,
Serbia) was used as started material for catalyst synthesis. The intercalation of chitosan into the
smectite structure was first step in the catalyst synthesis. The catalytically active species (Co2+)
was introduced by wetness impregnation method onto chitosan-smectite nanocomposite in the
second step. Obtained cobalt-chitosan-smectite composite (Co/Ch-S) was mixed by NaHCO3 in
mass ratio 1:3, and the mixture was submitted to the carbonization process in an inert atmosphere
of nitrogen at 500⁰ C for 60 min. After carbonization process, the catalyst was rinsed by 1M HCl
and distilled water until neutral reaction, dried and denoted as Co/CACh-S. Characterization was
performed by XRPD, XPS, SEM, and TEM methods. The Co/CACh-S was tested in reaction of
oxidative degradation of antibiotic ciprofloxacin in the presence of Oxone® as a source of sulfate
anion radicals. The degradation of ciprofloxacin was monitored using UV-Vis spectrophotometry
at wavelength of 277 nm within 240 min. It was found that 77% of ciprofloxacin was degraded
after 240 minutes of the reaction using Co/CACh-S catalyst.",
publisher = "Serbian Ceramic Society",
journal = "Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia",
title = "The influence of NaHCO3 as a porogen on cobalt-carbon-smectite catalysts synthesis: characterization and application in Oxone® induced degradation of antibiotic",
pages = "54-54",
url = "https://hdl.handle.net/21.15107/rcub_cer_7856"
}

Stevanović, G., Jović-Jovičić, N., Marinović, S., Banković, P., Silva, A. G., Bundaleski, N.,& Ajduković, M.. (2024). The influence of NaHCO3 as a porogen on cobalt-carbon-smectite catalysts synthesis: characterization and application in Oxone® induced degradation of antibiotic. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
Serbian Ceramic Society., 54-54.
https://hdl.handle.net/21.15107/rcub_cer_7856

Stevanović G, Jović-Jovičić N, Marinović S, Banković P, Silva AG, Bundaleski N, Ajduković M. The influence of NaHCO3 as a porogen on cobalt-carbon-smectite catalysts synthesis: characterization and application in Oxone® induced degradation of antibiotic. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia. 2024;:54-54.
https://hdl.handle.net/21.15107/rcub_cer_7856 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Marinović, Sanja, Banković, Predrag, Silva, Ana G., Bundaleski, Nenad, Ajduković, Marija, "The influence of NaHCO3 as a porogen on cobalt-carbon-smectite catalysts synthesis: characterization and application in Oxone® induced degradation of antibiotic" in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia (2024):54-54,
https://hdl.handle.net/21.15107/rcub_cer_7856 .

TY  - CONF
AU  - Pantić, Biljana
AU  - Banković, Predrag
AU  - Marinović, Sanja
AU  - Ajduković, Marija
AU  - Stevanović, Gordana
AU  - Parlić, Jovan
AU  - Mudrinić, Tihana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7854
AB  - This research is part of a study on developing clay-supported cobalt oxide materials as potential
electrocatalysts for glucose oxidation reaction (GOR-CoClay). In particular, the effect of the
different types of clay and cobalt incorporation methods on the electrochemical performance of
GOR-CoClay was investigated. Two clays from Wyoming and Bogovina deposits, in which
cobalt was incorporated by incipient wetness impregnation method and pillaring, were examined.
The catalysts were characterized by XRPD and ICP-OES. The electrochemical performances in
terms of sensitivity and current response were evaluated using cyclic voltammetry and
chronoamperometry. This study found that both methods of cobalt incorporation produced
functional catalysts. However, using the pillaring method was not always successful and
sometimes resulted in the formation of inactive catalysts. Conversely, the impregnation method
made cobalt incorporation easier and more reproducible, suggesting its preference for
synthesizing GOR-CoClay. Further, the results indicated that the different types of clays
regarding Al/Si ratio and Fe content significantly impact the electrochemical performance of
GOR-CoClay. The presence of a higher Fe content improved current response and sensitivity.
The exact role of the Al/Si ratio on GOR-CoClay performance will be the subject of our further
research.
PB  - Serbian Ceramic Society
C3  - Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
T1  - Clay-supported cobalt oxide catalyst for glucose oxidation: impact of different types of clay and cobalt incorporation methods
SP  - 50
EP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_cer_7854
ER  - 

@conference{
author = "Pantić, Biljana and Banković, Predrag and Marinović, Sanja and Ajduković, Marija and Stevanović, Gordana and Parlić, Jovan and Mudrinić, Tihana",
year = "2024",
abstract = "This research is part of a study on developing clay-supported cobalt oxide materials as potential
electrocatalysts for glucose oxidation reaction (GOR-CoClay). In particular, the effect of the
different types of clay and cobalt incorporation methods on the electrochemical performance of
GOR-CoClay was investigated. Two clays from Wyoming and Bogovina deposits, in which
cobalt was incorporated by incipient wetness impregnation method and pillaring, were examined.
The catalysts were characterized by XRPD and ICP-OES. The electrochemical performances in
terms of sensitivity and current response were evaluated using cyclic voltammetry and
chronoamperometry. This study found that both methods of cobalt incorporation produced
functional catalysts. However, using the pillaring method was not always successful and
sometimes resulted in the formation of inactive catalysts. Conversely, the impregnation method
made cobalt incorporation easier and more reproducible, suggesting its preference for
synthesizing GOR-CoClay. Further, the results indicated that the different types of clays
regarding Al/Si ratio and Fe content significantly impact the electrochemical performance of
GOR-CoClay. The presence of a higher Fe content improved current response and sensitivity.
The exact role of the Al/Si ratio on GOR-CoClay performance will be the subject of our further
research.",
publisher = "Serbian Ceramic Society",
journal = "Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia",
title = "Clay-supported cobalt oxide catalyst for glucose oxidation: impact of different types of clay and cobalt incorporation methods",
pages = "50-50",
url = "https://hdl.handle.net/21.15107/rcub_cer_7854"
}

Pantić, B., Banković, P., Marinović, S., Ajduković, M., Stevanović, G., Parlić, J.,& Mudrinić, T.. (2024). Clay-supported cobalt oxide catalyst for glucose oxidation: impact of different types of clay and cobalt incorporation methods. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
Serbian Ceramic Society., 50-50.
https://hdl.handle.net/21.15107/rcub_cer_7854

Pantić B, Banković P, Marinović S, Ajduković M, Stevanović G, Parlić J, Mudrinić T. Clay-supported cobalt oxide catalyst for glucose oxidation: impact of different types of clay and cobalt incorporation methods. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia. 2024;:50-50.
https://hdl.handle.net/21.15107/rcub_cer_7854 .

Pantić, Biljana, Banković, Predrag, Marinović, Sanja, Ajduković, Marija, Stevanović, Gordana, Parlić, Jovan, Mudrinić, Tihana, "Clay-supported cobalt oxide catalyst for glucose oxidation: impact of different types of clay and cobalt incorporation methods" in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia (2024):50-50,
https://hdl.handle.net/21.15107/rcub_cer_7854 .

TY  - CONF
AU  - Parlić, Jovan
AU  - Marinović, Sanja
AU  - Ajduković, Marija
AU  - Nedić-Vasiljević, Bojana
AU  - Banković, Predrag
AU  - Radulović, Katarina
AU  - Jović-Jovičić, Nataša
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7855
AB  - The degradation of Acid Yellow 23 (AY23) was investigated using Fenon-like oxidation reaction
in the presence of Oxone® as a source of reactive sulfate-anion radicals. The self-activation of
Oxone® is slow process, therefore various Co-based oxide-composites are used for its activation.
In our study, four heterogeneous Co-based catalysts were synthesized using smectite clay
(Gadžin Han deposite, Serbia). The 2μm fraction of clay was submitted to simultaneous
intercalation with inorganic cations (Al-Keggin) and organic cations
(hexadecyltrimethylammonium-HDTMA+) and impregnated with Co2+ using two different salts
((CH3COO)2Co and Co(NO3)2). The obtained hybrid composites were subjected to
carbonization/calcination process at 500 ⁰ C alternating argon and oxygen atmosphere. The UVVIS
spectroscopy was applied to monitor the concentration of AY23 during the degradation
process at λmax=426 nm. The results showed that the source of Co2+ (type of salt) as well as the
applied carbonization/calcination atmosphere played important roles in the catalyst efficiency.
The best catalytic performance was obtained for the catalyst where cobalt is derived from
(CH3COO)2Co and which is carbonized under argon atmosphere, achieving 70% of AY23
degradation in 4 h. On the other hand, catalyst obtained from nitrate salts and calcinated under
oxygen atmosphere led to degradation yield under 20%.
PB  - Serbian Ceramic Society
C3  - Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
T1  - The effect of cobalt source and heat treatment atmosphere on efficiency of Co-based clay catalyst on Acid Yellow 23 degradation in Fenton-like process
SP  - 58
EP  - 58
ER  - 

@conference{
author = "Parlić, Jovan and Marinović, Sanja and Ajduković, Marija and Nedić-Vasiljević, Bojana and Banković, Predrag and Radulović, Katarina and Jović-Jovičić, Nataša",
year = "2024",
abstract = "The degradation of Acid Yellow 23 (AY23) was investigated using Fenon-like oxidation reaction
in the presence of Oxone® as a source of reactive sulfate-anion radicals. The self-activation of
Oxone® is slow process, therefore various Co-based oxide-composites are used for its activation.
In our study, four heterogeneous Co-based catalysts were synthesized using smectite clay
(Gadžin Han deposite, Serbia). The 2μm fraction of clay was submitted to simultaneous
intercalation with inorganic cations (Al-Keggin) and organic cations
(hexadecyltrimethylammonium-HDTMA+) and impregnated with Co2+ using two different salts
((CH3COO)2Co and Co(NO3)2). The obtained hybrid composites were subjected to
carbonization/calcination process at 500 ⁰ C alternating argon and oxygen atmosphere. The UVVIS
spectroscopy was applied to monitor the concentration of AY23 during the degradation
process at λmax=426 nm. The results showed that the source of Co2+ (type of salt) as well as the
applied carbonization/calcination atmosphere played important roles in the catalyst efficiency.
The best catalytic performance was obtained for the catalyst where cobalt is derived from
(CH3COO)2Co and which is carbonized under argon atmosphere, achieving 70% of AY23
degradation in 4 h. On the other hand, catalyst obtained from nitrate salts and calcinated under
oxygen atmosphere led to degradation yield under 20%.",
publisher = "Serbian Ceramic Society",
journal = "Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia",
title = "The effect of cobalt source and heat treatment atmosphere on efficiency of Co-based clay catalyst on Acid Yellow 23 degradation in Fenton-like process",
pages = "58-58"
}

Parlić, J., Marinović, S., Ajduković, M., Nedić-Vasiljević, B., Banković, P., Radulović, K.,& Jović-Jovičić, N.. (2024). The effect of cobalt source and heat treatment atmosphere on efficiency of Co-based clay catalyst on Acid Yellow 23 degradation in Fenton-like process. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
Serbian Ceramic Society., 58-58.

Parlić J, Marinović S, Ajduković M, Nedić-Vasiljević B, Banković P, Radulović K, Jović-Jovičić N. The effect of cobalt source and heat treatment atmosphere on efficiency of Co-based clay catalyst on Acid Yellow 23 degradation in Fenton-like process. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia. 2024;:58-58..

Parlić, Jovan, Marinović, Sanja, Ajduković, Marija, Nedić-Vasiljević, Bojana, Banković, Predrag, Radulović, Katarina, Jović-Jovičić, Nataša, "The effect of cobalt source and heat treatment atmosphere on efficiency of Co-based clay catalyst on Acid Yellow 23 degradation in Fenton-like process" in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia (2024):58-58.

TY  - CONF
AU  - Marinovic, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7853
AB  - Real wastewater usually contains various inorganic ions. It is important to investigate the influence of coexisting ions on the degradation process when examining the effectiveness of a catalyst in dye degradation since they can affect the reaction process. Two cobalt-based aluminas were tested in oxidative degradation of Orange G (OG) dye in the presence of Oxone®. The catalysts were obtained using sol-gel method, followed by gelation and calcination at 1000 ºC and 1100 ºC.  In this work the effects of most common anions present in real waters: Cl−, HCO3−, NO3−, SO42−, H2PO4− on OG degradation was investigated. Also, the effect of cations K+, Mg2+ and Ca2+ was tested. It is noticeable that some anions speed up and other slow down the degradation of OG, while all investigated cations had the positive effect on the reaction rate. It was shown that anions Cl− and H2PO4−enhanced the OG degradation rate, while NO3−, SO42− and HCO3− inhibited it. It is concluded that the overall effect of coexisting ions is complicated and depends on many factors, such as the type of ions, the concentrations of each species etc.
PB  - Serbian Ceramic Society
C3  - Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
T1  - The effect of coexisting anions in Fenton-like Orange G degradation using cobalt-based alumina catalysts
SP  - 72
EP  - 72
ER  - 

@conference{
author = "Marinovic, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Real wastewater usually contains various inorganic ions. It is important to investigate the influence of coexisting ions on the degradation process when examining the effectiveness of a catalyst in dye degradation since they can affect the reaction process. Two cobalt-based aluminas were tested in oxidative degradation of Orange G (OG) dye in the presence of Oxone®. The catalysts were obtained using sol-gel method, followed by gelation and calcination at 1000 ºC and 1100 ºC.  In this work the effects of most common anions present in real waters: Cl−, HCO3−, NO3−, SO42−, H2PO4− on OG degradation was investigated. Also, the effect of cations K+, Mg2+ and Ca2+ was tested. It is noticeable that some anions speed up and other slow down the degradation of OG, while all investigated cations had the positive effect on the reaction rate. It was shown that anions Cl− and H2PO4−enhanced the OG degradation rate, while NO3−, SO42− and HCO3− inhibited it. It is concluded that the overall effect of coexisting ions is complicated and depends on many factors, such as the type of ions, the concentrations of each species etc.",
publisher = "Serbian Ceramic Society",
journal = "Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia",
title = "The effect of coexisting anions in Fenton-like Orange G degradation using cobalt-based alumina catalysts",
pages = "72-72"
}

Marinovic, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2024). The effect of coexisting anions in Fenton-like Orange G degradation using cobalt-based alumina catalysts. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
Serbian Ceramic Society., 72-72.

Marinovic S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. The effect of coexisting anions in Fenton-like Orange G degradation using cobalt-based alumina catalysts. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia. 2024;:72-72..

Marinovic, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "The effect of coexisting anions in Fenton-like Orange G degradation using cobalt-based alumina catalysts" in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia (2024):72-72.

TY  - CONF
AU  - Marinovic, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7852
AB  - Commercial pseudo-boehmite was impregnated with the cobalt nitrate solution using the incipient wetness method. 3 mas% and 6 mas% of Co2+ was used, followed by calcination at 500 °C to obtain catalysts with gamma phase of alumina. The catalysts were investigated in a peroxymonosulfate-induced Fenton-like process of tartrazine dye degradation. The effect of reaction temperature was tested, and it was found that the reaction rate increased with temperature elevation. The catalyst with 6% of Co2+ was proven to be much more effective in the investigated reaction. The common kinetic models were applied and pseudo-first-order kinetic model was found the most appropriate. Calculated energy of activation was about 85 kJ/mol for both catalysts. The effect of scavengers was also investigated to identify the dominant reactive oxygen species. Tert-butanol only slightly inhibited the reaction, while with ethanol, reaction rate more significantly decreased. This indicated that sulfate anion radicals are the dominant reactive oxygen species.
PB  - Serbian Ceramic Society
C3  - Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
T1  - Catalytic performance of cobalt impregnated pseudo-boehmite in degradation of tartrazine in the presence of peroxymonosulfate
SP  - 71
EP  - 71
ER  - 

@conference{
author = "Marinovic, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Commercial pseudo-boehmite was impregnated with the cobalt nitrate solution using the incipient wetness method. 3 mas% and 6 mas% of Co2+ was used, followed by calcination at 500 °C to obtain catalysts with gamma phase of alumina. The catalysts were investigated in a peroxymonosulfate-induced Fenton-like process of tartrazine dye degradation. The effect of reaction temperature was tested, and it was found that the reaction rate increased with temperature elevation. The catalyst with 6% of Co2+ was proven to be much more effective in the investigated reaction. The common kinetic models were applied and pseudo-first-order kinetic model was found the most appropriate. Calculated energy of activation was about 85 kJ/mol for both catalysts. The effect of scavengers was also investigated to identify the dominant reactive oxygen species. Tert-butanol only slightly inhibited the reaction, while with ethanol, reaction rate more significantly decreased. This indicated that sulfate anion radicals are the dominant reactive oxygen species.",
publisher = "Serbian Ceramic Society",
journal = "Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia",
title = "Catalytic performance of cobalt impregnated pseudo-boehmite in degradation of tartrazine in the presence of peroxymonosulfate",
pages = "71-71"
}

Marinovic, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2024). Catalytic performance of cobalt impregnated pseudo-boehmite in degradation of tartrazine in the presence of peroxymonosulfate. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia
Serbian Ceramic Society., 71-71.

Marinovic S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. Catalytic performance of cobalt impregnated pseudo-boehmite in degradation of tartrazine in the presence of peroxymonosulfate. in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia. 2024;:71-71..

Marinovic, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "Catalytic performance of cobalt impregnated pseudo-boehmite in degradation of tartrazine in the presence of peroxymonosulfate" in Conference Advanced Ceramics and Application : New Frontiers in Multifunctional Material Science and Processing, Program and the Book of abstracts; September 18-20, 2024; Belgrade, Serbia (2024):71-71.

TY  - DATA
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Nikolova, Dimitrinka
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7810
AB  - Two texturally and structurally different Co-doped aluminas were obtained by using the sol-gel method followed by calcination at temperatures of 1000 °C and 1100 °C. The obtained materials were tested as catalysts in anionic textile dye Orange G (OG) degradation using Oxone® as a precursor of sulfate anion radicals, the main reactive oxygen species. Effects of temperature and initial pH on degradation efficiency was investigated. The increase in temperature accelerated the reaction rate and the maximal degradation efficiency was obtained at 60 °C. Different kinetic models were applied and pseudo-first order rate was found to be the most appropriate. Both catalysts showed the optimal performance in the pH range around neutral. Coexisting cations (Ca2+, Mg2+, K+ and Na+) enhanced the OG degra­dation rate, as well as anions: Clˉ and H2PO4ˉ, while NO3ˉ, SO42ˉand HCO3ˉ inhibited the degradation. The catalysts were also proved effective in degradation of the other investi­gated dyes: Methylene blue, Basic blue 41, and Remazol brilliant blue R. Finally, simulta­neous degradation of OG in binary dye mixtures was investigated showing that the synthesized catalysts can be also used in simultaneous processes of dye degradation. However, differences in structural and textural properties of the two catalysts affected their catalytic performance.
AB  - Dva kobaltom dopirana katalizatora na bazi aluminijum oksida, sa ra zličitim teksturalnim i strukturnim karakteristikama, dobijena su sol-gel postupkom sinteze, nakon koje su uzorci žareni na tempreturi od 1000 °C odnosno 1100 °C. Dobijeni materijali su ispitani kao katalizatori u procesu degradacije anjonske tekstilne boje Orange G (OG) uz korišćenje Oksona kao prekursora sulfatnih anjon radikala, koji su glavna oksidativna vrsta. Ispitan je uticaj temperature i početnog pH na efikasnost degradacije, i uočeno je da porast temperature povećava brzinu reakcije. Maksimalna efikasnost degradacijeje dobijena na 60 °C. Primenjeni su različiti kinetički modeli i pokazalo se da kinetički model pseudo-prvog reda najbolje opisuje kinetiku ispitanog procesa. Takođe je za oba katalizatora utvrđeno da je optimalna vrednost pH za ispitivanu reakciju u oblasti blizu neutralne. Koegzistirajući katjoni (Ca2+, Mg2+, K+ and Na+) i anjoni Clˉ and H2PO4ˉ su ubrzavali degradaciju OG, dok su je anjoni NO3ˉ, SO4 2ˉ i HCO3ˉ usporavali. Katalizatori su se pokazali efikasnii u degradaciji boja: metilensko plavo, osnovno plavo 41 i boje “Remazol brilliant blue”, kao i u degradaciji boja u binarnim smešama. Ipak, razlike u strukturnim i teksturalnim svojstvima su uticale na razlike u katalitičkoj efikasnosti ova dva katalizatora.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Supplementary material to "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts"
T1  - Dopunski materijal za "Fentonov tip oksidativne degradacije boje Orange G i binarnih smeša boja pomoću Oksona® aktiviranog katalizatorima na bazi aluminijum oksida dopiranih kobaltom"
DO  - 10.2298/HEMIND240126016M
ER  - 

@misc{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Nikolova, Dimitrinka and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Two texturally and structurally different Co-doped aluminas were obtained by using the sol-gel method followed by calcination at temperatures of 1000 °C and 1100 °C. The obtained materials were tested as catalysts in anionic textile dye Orange G (OG) degradation using Oxone® as a precursor of sulfate anion radicals, the main reactive oxygen species. Effects of temperature and initial pH on degradation efficiency was investigated. The increase in temperature accelerated the reaction rate and the maximal degradation efficiency was obtained at 60 °C. Different kinetic models were applied and pseudo-first order rate was found to be the most appropriate. Both catalysts showed the optimal performance in the pH range around neutral. Coexisting cations (Ca2+, Mg2+, K+ and Na+) enhanced the OG degra­dation rate, as well as anions: Clˉ and H2PO4ˉ, while NO3ˉ, SO42ˉand HCO3ˉ inhibited the degradation. The catalysts were also proved effective in degradation of the other investi­gated dyes: Methylene blue, Basic blue 41, and Remazol brilliant blue R. Finally, simulta­neous degradation of OG in binary dye mixtures was investigated showing that the synthesized catalysts can be also used in simultaneous processes of dye degradation. However, differences in structural and textural properties of the two catalysts affected their catalytic performance., Dva kobaltom dopirana katalizatora na bazi aluminijum oksida, sa ra zličitim teksturalnim i strukturnim karakteristikama, dobijena su sol-gel postupkom sinteze, nakon koje su uzorci žareni na tempreturi od 1000 °C odnosno 1100 °C. Dobijeni materijali su ispitani kao katalizatori u procesu degradacije anjonske tekstilne boje Orange G (OG) uz korišćenje Oksona kao prekursora sulfatnih anjon radikala, koji su glavna oksidativna vrsta. Ispitan je uticaj temperature i početnog pH na efikasnost degradacije, i uočeno je da porast temperature povećava brzinu reakcije. Maksimalna efikasnost degradacijeje dobijena na 60 °C. Primenjeni su različiti kinetički modeli i pokazalo se da kinetički model pseudo-prvog reda najbolje opisuje kinetiku ispitanog procesa. Takođe je za oba katalizatora utvrđeno da je optimalna vrednost pH za ispitivanu reakciju u oblasti blizu neutralne. Koegzistirajući katjoni (Ca2+, Mg2+, K+ and Na+) i anjoni Clˉ and H2PO4ˉ su ubrzavali degradaciju OG, dok su je anjoni NO3ˉ, SO4 2ˉ i HCO3ˉ usporavali. Katalizatori su se pokazali efikasnii u degradaciji boja: metilensko plavo, osnovno plavo 41 i boje “Remazol brilliant blue”, kao i u degradaciji boja u binarnim smešama. Ipak, razlike u strukturnim i teksturalnim svojstvima su uticale na razlike u katalitičkoj efikasnosti ova dva katalizatora.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Supplementary material to "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts", Dopunski materijal za "Fentonov tip oksidativne degradacije boje Orange G i binarnih smeša boja pomoću Oksona® aktiviranog katalizatorima na bazi aluminijum oksida dopiranih kobaltom"",
doi = "10.2298/HEMIND240126016M"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Nikolova, D., Banković, P.,& Novaković, T.. (2024). Supplementary material to "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts". in Hemijska industrija
Association of Chemical Engineers of Serbia..
https://doi.org/10.2298/HEMIND240126016M

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Nikolova D, Banković P, Novaković T. Supplementary material to "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts". in Hemijska industrija. 2024;.
doi:10.2298/HEMIND240126016M .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Nikolova, Dimitrinka, Banković, Predrag, Novaković, Tatjana, "Supplementary material to "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts"" in Hemijska industrija (2024),
https://doi.org/10.2298/HEMIND240126016M . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Nikolova, Dimitrinka
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7809
AB  - Two texturally and structurally different Co-doped aluminas were obtained by using the sol-gel method followed by calcination at temperatures of 1000 °C and 1100 °C. The obtained materials were tested as catalysts in anionic textile dye Orange G (OG) degradation using Oxone® as a precursor of sulfate anion radicals, the main reactive oxygen species. Effects of temperature and initial pH on degradation efficiency was investigated. The increase in temperature accelerated the reaction rate and the maximal degradation efficiency was obtained at 60 °C. Different kinetic models were applied and pseudo-first order rate was found to be the most appropriate. Both catalysts showed the optimal performance in the pH range around neutral. Coexisting cations (Ca2+, Mg2+, K+ and Na+) enhanced the OG degra­dation rate, as well as anions: Clˉ and H2PO4ˉ, while NO3ˉ, SO42ˉand HCO3ˉ inhibited the degradation. The catalysts were also proved effective in degradation of the other investi­gated dyes: Methylene blue, Basic blue 41, and Remazol brilliant blue R. Finally, simulta­neous degradation of OG in binary dye mixtures was investigated showing that the synthesized catalysts can be also used in simultaneous processes of dye degradation. However, differences in structural and textural properties of the two catalysts affected their catalytic performance.
AB  - Dva kobaltom dopirana katalizatora na bazi aluminijum oksida, sa ra zličitim teksturalnim i strukturnim karakteristikama, dobijena su sol-gel postupkom sinteze, nakon koje su uzorci žareni na tempreturi od 1000 °C odnosno 1100 °C. Dobijeni materijali su ispitani kao katalizatori u procesu degradacije anjonske tekstilne boje Orange G (OG) uz korišćenje Oksona kao prekursora sulfatnih anjon radikala, koji su glavna oksidativna vrsta. Ispitan je uticaj temperature i početnog pH na efikasnost degradacije, i uočeno je da porast temperature povećava brzinu reakcije. Maksimalna efikasnost degradacijeje dobijena na 60 °C. Primenjeni su različiti kinetički modeli i pokazalo se da kinetički model pseudo-prvog reda najbolje opisuje kinetiku ispitanog procesa. Takođe je za oba katalizatora utvrđeno da je optimalna vrednost pH za ispitivanu reakciju u oblasti blizu neutralne. Koegzistirajući katjoni (Ca2+, Mg2+, K+ and Na+) i anjoni Clˉ and H2PO4ˉ su ubrzavali degradaciju OG, dok su je anjoni NO3ˉ, SO4 2ˉ i HCO3ˉ usporavali. Katalizatori su se pokazali efikasnii u degradaciji boja: metilensko plavo, osnovno plavo 41 i boje “Remazol brilliant blue”, kao i u degradaciji boja u binarnim smešama. Ipak, razlike u strukturnim i teksturalnim svojstvima su uticale na razlike u katalitičkoj efikasnosti ova dva katalizatora.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts
T1  - Fentonov tip oksidativne degradacije boje Orange G i binarnih smeša boja pomoću Oksona® aktiviranog katalizatorima na bazi aluminijum oksida dopiranih kobaltom
DO  - 10.2298/HEMIND240126016M
ER  - 

@article{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Nikolova, Dimitrinka and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Two texturally and structurally different Co-doped aluminas were obtained by using the sol-gel method followed by calcination at temperatures of 1000 °C and 1100 °C. The obtained materials were tested as catalysts in anionic textile dye Orange G (OG) degradation using Oxone® as a precursor of sulfate anion radicals, the main reactive oxygen species. Effects of temperature and initial pH on degradation efficiency was investigated. The increase in temperature accelerated the reaction rate and the maximal degradation efficiency was obtained at 60 °C. Different kinetic models were applied and pseudo-first order rate was found to be the most appropriate. Both catalysts showed the optimal performance in the pH range around neutral. Coexisting cations (Ca2+, Mg2+, K+ and Na+) enhanced the OG degra­dation rate, as well as anions: Clˉ and H2PO4ˉ, while NO3ˉ, SO42ˉand HCO3ˉ inhibited the degradation. The catalysts were also proved effective in degradation of the other investi­gated dyes: Methylene blue, Basic blue 41, and Remazol brilliant blue R. Finally, simulta­neous degradation of OG in binary dye mixtures was investigated showing that the synthesized catalysts can be also used in simultaneous processes of dye degradation. However, differences in structural and textural properties of the two catalysts affected their catalytic performance., Dva kobaltom dopirana katalizatora na bazi aluminijum oksida, sa ra zličitim teksturalnim i strukturnim karakteristikama, dobijena su sol-gel postupkom sinteze, nakon koje su uzorci žareni na tempreturi od 1000 °C odnosno 1100 °C. Dobijeni materijali su ispitani kao katalizatori u procesu degradacije anjonske tekstilne boje Orange G (OG) uz korišćenje Oksona kao prekursora sulfatnih anjon radikala, koji su glavna oksidativna vrsta. Ispitan je uticaj temperature i početnog pH na efikasnost degradacije, i uočeno je da porast temperature povećava brzinu reakcije. Maksimalna efikasnost degradacijeje dobijena na 60 °C. Primenjeni su različiti kinetički modeli i pokazalo se da kinetički model pseudo-prvog reda najbolje opisuje kinetiku ispitanog procesa. Takođe je za oba katalizatora utvrđeno da je optimalna vrednost pH za ispitivanu reakciju u oblasti blizu neutralne. Koegzistirajući katjoni (Ca2+, Mg2+, K+ and Na+) i anjoni Clˉ and H2PO4ˉ su ubrzavali degradaciju OG, dok su je anjoni NO3ˉ, SO4 2ˉ i HCO3ˉ usporavali. Katalizatori su se pokazali efikasnii u degradaciji boja: metilensko plavo, osnovno plavo 41 i boje “Remazol brilliant blue”, kao i u degradaciji boja u binarnim smešama. Ipak, razlike u strukturnim i teksturalnim svojstvima su uticale na razlike u katalitičkoj efikasnosti ova dva katalizatora.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts, Fentonov tip oksidativne degradacije boje Orange G i binarnih smeša boja pomoću Oksona® aktiviranog katalizatorima na bazi aluminijum oksida dopiranih kobaltom",
doi = "10.2298/HEMIND240126016M"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Nikolova, D., Banković, P.,& Novaković, T.. (2024). Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts. in Hemijska industrija
Association of Chemical Engineers of Serbia..
https://doi.org/10.2298/HEMIND240126016M

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Nikolova D, Banković P, Novaković T. Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts. in Hemijska industrija. 2024;.
doi:10.2298/HEMIND240126016M .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Nikolova, Dimitrinka, Banković, Predrag, Novaković, Tatjana, "Fenton-like oxidative degradation of Orange G dye and binary dye mixtures using Oxone® activated with cobalt-doped alumina catalysts" in Hemijska industrija (2024),
https://doi.org/10.2298/HEMIND240126016M . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7782
AB  - Pseudobemit je impregnisan kobaltom postupkom kapilarne impregnacije. Za impregnaciju
su korišćene dve koncentracije, 3 mas% i 6 mas% Co 2+ u odnosu na masu pseudobemita.
Dobijeni materijali su žareni na 500 ºC. Sintetisani katalizatori su ispitani u procesu
oksidativne degradacije boje tartrazina u prisustvu Oksona kao izvora sulfatnih radikal
anjona. Ispitivan je uticaj tempreature na efikasnost degradacije boje. Uočeno je da brzina
degradacije raste sa porastom temperature. Eksperimentalno dobijeni rezultati su testirani
korišćenjem najčešćih kinetičkih modela i dobijeno je da reakcija u svim slučajevima sledi
brzinu pseudo-prvog reda. Takođe je uočeno da sa porastom sadržaja kobalta raste efikasnost
katalizatora. Da bi se odredilo koja je reaktivna oksidativna vrsta dominantna u ispitivanom
procesu, u reakcioni sistem je dodavan tercijalni butanol, odnosno etanol. Utvrđeno je da su
sulfatni radikal anjoni dominantna reaktivna vrsta.
AB  - Pseudoboehmite was impregnated with cobalt using a incipient wetness impregnation method. Two different concentrations of cobalt were used for impregnation: 3 mas% and 6 mas% of Co2+ relative to the mass of pseudoboehmite. The obtained materials were calcined at 500 ºC. The synthesized catalysts were tested in the process of oxidative degradation of tartrazine dye in the presence of Oxon as a source of sulfate anion radicals. The influence of temperature on the dye degradation efficiency was investigated. It was observed that the degradation rate increases with the increasing of  temperature. The experimentally obtained results were tested using the most common kinetic models and it was found that the reaction follows a pseudo-first order rate in all cases. It was also observed that with an increase in the cobalt content, the efficiency of the catalyst increases. In order to determine which reactive oxidative species is dominant in the investigated process, tertiary buthalnol and ethanol was added to the reaction system. According to the experimental results sulfate anion radicals were found to be the dominant reactive species.
PB  - Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Katalitička aktivnost uzoraka pseudobemita impregnisanih različitim koncentracijama kobalta u oksidativnoj degradaciji tartrazina u prisustvu Oksona
T1  - Catalytic activity of pseudoboehmites impregnated with different cobalt contents in the oxidative degradation of tartrazine in the presence of Oxone
VL  - 79
IS  - 3
SP  - 250
EP  - 256
DO  - 10.5937/tehnika2403250M
ER  - 

@article{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Pseudobemit je impregnisan kobaltom postupkom kapilarne impregnacije. Za impregnaciju
su korišćene dve koncentracije, 3 mas% i 6 mas% Co 2+ u odnosu na masu pseudobemita.
Dobijeni materijali su žareni na 500 ºC. Sintetisani katalizatori su ispitani u procesu
oksidativne degradacije boje tartrazina u prisustvu Oksona kao izvora sulfatnih radikal
anjona. Ispitivan je uticaj tempreature na efikasnost degradacije boje. Uočeno je da brzina
degradacije raste sa porastom temperature. Eksperimentalno dobijeni rezultati su testirani
korišćenjem najčešćih kinetičkih modela i dobijeno je da reakcija u svim slučajevima sledi
brzinu pseudo-prvog reda. Takođe je uočeno da sa porastom sadržaja kobalta raste efikasnost
katalizatora. Da bi se odredilo koja je reaktivna oksidativna vrsta dominantna u ispitivanom
procesu, u reakcioni sistem je dodavan tercijalni butanol, odnosno etanol. Utvrđeno je da su
sulfatni radikal anjoni dominantna reaktivna vrsta., Pseudoboehmite was impregnated with cobalt using a incipient wetness impregnation method. Two different concentrations of cobalt were used for impregnation: 3 mas% and 6 mas% of Co2+ relative to the mass of pseudoboehmite. The obtained materials were calcined at 500 ºC. The synthesized catalysts were tested in the process of oxidative degradation of tartrazine dye in the presence of Oxon as a source of sulfate anion radicals. The influence of temperature on the dye degradation efficiency was investigated. It was observed that the degradation rate increases with the increasing of  temperature. The experimentally obtained results were tested using the most common kinetic models and it was found that the reaction follows a pseudo-first order rate in all cases. It was also observed that with an increase in the cobalt content, the efficiency of the catalyst increases. In order to determine which reactive oxidative species is dominant in the investigated process, tertiary buthalnol and ethanol was added to the reaction system. According to the experimental results sulfate anion radicals were found to be the dominant reactive species.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Katalitička aktivnost uzoraka pseudobemita impregnisanih različitim koncentracijama kobalta u oksidativnoj degradaciji tartrazina u prisustvu Oksona, Catalytic activity of pseudoboehmites impregnated with different cobalt contents in the oxidative degradation of tartrazine in the presence of Oxone",
volume = "79",
number = "3",
pages = "250-256",
doi = "10.5937/tehnika2403250M"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2024). Katalitička aktivnost uzoraka pseudobemita impregnisanih različitim koncentracijama kobalta u oksidativnoj degradaciji tartrazina u prisustvu Oksona. in Tehnika
Savez inženjera i tehničara Srbije., 79(3), 250-256.
https://doi.org/10.5937/tehnika2403250M

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. Katalitička aktivnost uzoraka pseudobemita impregnisanih različitim koncentracijama kobalta u oksidativnoj degradaciji tartrazina u prisustvu Oksona. in Tehnika. 2024;79(3):250-256.
doi:10.5937/tehnika2403250M .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "Katalitička aktivnost uzoraka pseudobemita impregnisanih različitim koncentracijama kobalta u oksidativnoj degradaciji tartrazina u prisustvu Oksona" in Tehnika, 79, no. 3 (2024):250-256,
https://doi.org/10.5937/tehnika2403250M . .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Nikolova, Dimitrinka
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7654
AB  - Cobalt-doped alumina catalyst calcined at 500 ºC (CoA-500) was investigated in the degradation of anionic textile dye Orange G in the presence of Oxone®. Different reaction parameters were altered in order to study their influence on Orange G degradation. The increase of the Oxone® dosage, mass of the catalyst and temperature was beneficial for the dye degradation rate. The best catalytic performance was obtained in the range of the initial solution pH = 6–8. Simultaneous degradation of both Orange G and cationic textile dye Basic blue 41, was also tested. The degradation of the Basic blue 41 did not occur while Orange G was present in the system. CoA-500 was found to be efficient catalyst in the Oxone® induced catalytic degradation of textile dyes.
PB  - International Institute for the Science of Sintering
T2  - Science of sintering
T1  - Oxone® induced textile dyes degradation using cobalt-doped alumina catalyst
VL  - OnLine-First
DO  - 10.2298/SOS230911066M
ER  - 

@article{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Nikolova, Dimitrinka and Banković, Predrag and Novaković, Tatjana",
year = "2024",
abstract = "Cobalt-doped alumina catalyst calcined at 500 ºC (CoA-500) was investigated in the degradation of anionic textile dye Orange G in the presence of Oxone®. Different reaction parameters were altered in order to study their influence on Orange G degradation. The increase of the Oxone® dosage, mass of the catalyst and temperature was beneficial for the dye degradation rate. The best catalytic performance was obtained in the range of the initial solution pH = 6–8. Simultaneous degradation of both Orange G and cationic textile dye Basic blue 41, was also tested. The degradation of the Basic blue 41 did not occur while Orange G was present in the system. CoA-500 was found to be efficient catalyst in the Oxone® induced catalytic degradation of textile dyes.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of sintering",
title = "Oxone® induced textile dyes degradation using cobalt-doped alumina catalyst",
volume = "OnLine-First",
doi = "10.2298/SOS230911066M"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Nikolova, D., Banković, P.,& Novaković, T.. (2024). Oxone® induced textile dyes degradation using cobalt-doped alumina catalyst. in Science of sintering
International Institute for the Science of Sintering., OnLine-First.
https://doi.org/10.2298/SOS230911066M

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Nikolova D, Banković P, Novaković T. Oxone® induced textile dyes degradation using cobalt-doped alumina catalyst. in Science of sintering. 2024;OnLine-First.
doi:10.2298/SOS230911066M .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Nikolova, Dimitrinka, Banković, Predrag, Novaković, Tatjana, "Oxone® induced textile dyes degradation using cobalt-doped alumina catalyst" in Science of sintering, OnLine-First (2024),
https://doi.org/10.2298/SOS230911066M . .

TY  - JOUR
AU  - Kosić, Višnja
AU  - Božić, Nataša
AU  - Dojnov, Biljana
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
AU  - Knežević-Jugović, Zorica
AU  - Milutinović Nikolić, Aleksandra
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7525
AB  - Three glycoside hydrolases (α-amylase, xylanase and pullulanase) were immobilized on low-cost, environmentally friendly, easily modified clay rich in beidellite. Modifications included common procedures: Na-exchange, acid activation, pillaring, pillaring followed by acid activation, and organo-modifications with chitosan. Supports were characterized by chemical analysis, low temperature N2 physisorption, X-ray powder diffraction (XRPD) and Fourier-transform infrared (FT-IR) spectroscopy. The point of zero charge was also determined. Specific activity of different immobilizates of selected glycoside hydrolases was notably influenced by the type of chemical modification of supports. For each enzyme optimal support was chosen and storage stability was tested. α-Amylase immobilized on acid-activated support retained up to 95% of its initial specific activity of 105.6 ± 5.1 U g−1 after a testing period of 120 days. The most suitable support for xylanase was chitosan-modified beidellite with having specific activity of 90.0 ± 1.4 U g−1 which retained >50% its value after 120 days. Specific activity of pullulanase immobilized on pillared sample that was subsequently activated by acid was 44.5 ± 0.7 U g−1. Initial activity was preserved up to 33% for the same testing period. Comparing these results to the storage stability of the free enzymes that completely lost their activity for the longest period of 40 days, it can be concluded that appropriately modified beidellite- based clays could be used as suitable supports for stabilization of glycoside hydrolases. Nevertheless, further characterization of immobilizates (pH, thermal and operational stability) is needed in order to raise the suitability for larger scale processes in food industry.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Significantly improved stabilization of glycoside hydrolases important in food industry by immobilization onto appropriately modified beidellite
VL  - 250
SP  - 107289
DO  - 10.1016/j.clay.2024.107289
ER  - 

@article{
author = "Kosić, Višnja and Božić, Nataša and Dojnov, Biljana and Banković, Predrag and Jović-Jovičić, Nataša and Knežević-Jugović, Zorica and Milutinović Nikolić, Aleksandra",
year = "2024",
abstract = "Three glycoside hydrolases (α-amylase, xylanase and pullulanase) were immobilized on low-cost, environmentally friendly, easily modified clay rich in beidellite. Modifications included common procedures: Na-exchange, acid activation, pillaring, pillaring followed by acid activation, and organo-modifications with chitosan. Supports were characterized by chemical analysis, low temperature N2 physisorption, X-ray powder diffraction (XRPD) and Fourier-transform infrared (FT-IR) spectroscopy. The point of zero charge was also determined. Specific activity of different immobilizates of selected glycoside hydrolases was notably influenced by the type of chemical modification of supports. For each enzyme optimal support was chosen and storage stability was tested. α-Amylase immobilized on acid-activated support retained up to 95% of its initial specific activity of 105.6 ± 5.1 U g−1 after a testing period of 120 days. The most suitable support for xylanase was chitosan-modified beidellite with having specific activity of 90.0 ± 1.4 U g−1 which retained >50% its value after 120 days. Specific activity of pullulanase immobilized on pillared sample that was subsequently activated by acid was 44.5 ± 0.7 U g−1. Initial activity was preserved up to 33% for the same testing period. Comparing these results to the storage stability of the free enzymes that completely lost their activity for the longest period of 40 days, it can be concluded that appropriately modified beidellite- based clays could be used as suitable supports for stabilization of glycoside hydrolases. Nevertheless, further characterization of immobilizates (pH, thermal and operational stability) is needed in order to raise the suitability for larger scale processes in food industry.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Significantly improved stabilization of glycoside hydrolases important in food industry by immobilization onto appropriately modified beidellite",
volume = "250",
pages = "107289",
doi = "10.1016/j.clay.2024.107289"
}

Kosić, V., Božić, N., Dojnov, B., Banković, P., Jović-Jovičić, N., Knežević-Jugović, Z.,& Milutinović Nikolić, A.. (2024). Significantly improved stabilization of glycoside hydrolases important in food industry by immobilization onto appropriately modified beidellite. in Applied Clay Science
Elsevier., 250, 107289.
https://doi.org/10.1016/j.clay.2024.107289

Kosić V, Božić N, Dojnov B, Banković P, Jović-Jovičić N, Knežević-Jugović Z, Milutinović Nikolić A. Significantly improved stabilization of glycoside hydrolases important in food industry by immobilization onto appropriately modified beidellite. in Applied Clay Science. 2024;250:107289.
doi:10.1016/j.clay.2024.107289 .

Kosić, Višnja, Božić, Nataša, Dojnov, Biljana, Banković, Predrag, Jović-Jovičić, Nataša, Knežević-Jugović, Zorica, Milutinović Nikolić, Aleksandra, "Significantly improved stabilization of glycoside hydrolases important in food industry by immobilization onto appropriately modified beidellite" in Applied Clay Science, 250 (2024):107289,
https://doi.org/10.1016/j.clay.2024.107289 . .

TY  - JOUR
AU  - Fronczak, Maciej
AU  - Karoly, Zoltan
AU  - Banković, Predrag
AU  - Mojović, Zorica
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7470
AB  - As electrode materials, graphene and its derivatives have been the subject of extensive investigation. Graphene has been modified by various types of materials in an effort to enhance its electrode qualities even more. This work sought to understand how the precursor to graphene affected the electrochemical characteristics of the final product and its potential use, unaltered, in the creation of sensors for nitrophenol derivatives. A set of samples of graphene produced using a radiofrequency (RF) thermal plasma jet are presented. Precursors for the creation of graphene included six basic organic compounds: alkanes, alcohols, carboxylic acids, and aldehydes. Cyclic voltammetry (CV) was used to carry out the electrochemical characterization. Square wave voltammetry (SWV) was used to assess the graphene’s electroanalytical performance for the simultaneous detection of 3-nitrophenol and 4-nitrophenol. A graphene sample made from methane had the maximum current response. Using as synthesised methane-originated graphene, two nitrophenol derivatives were successfully detected simulta neously in a concentration range of 10 μM to 500 μM. The type of oxygen functional groups and the edge/plane ratio in the produced graphene were shown to have a significant impact on the graphene electroactivity. Future research ought to focus on improving synthetic conditions in order to enhance desirable characteristics.
PB  - Elsevier
T2  - Microchemical Journal
T1  - The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene
VL  - 199
SP  - 110079
DO  - 10.1016/j.microc.2024.110079
ER  - 

@article{
author = "Fronczak, Maciej and Karoly, Zoltan and Banković, Predrag and Mojović, Zorica",
year = "2024",
abstract = "As electrode materials, graphene and its derivatives have been the subject of extensive investigation. Graphene has been modified by various types of materials in an effort to enhance its electrode qualities even more. This work sought to understand how the precursor to graphene affected the electrochemical characteristics of the final product and its potential use, unaltered, in the creation of sensors for nitrophenol derivatives. A set of samples of graphene produced using a radiofrequency (RF) thermal plasma jet are presented. Precursors for the creation of graphene included six basic organic compounds: alkanes, alcohols, carboxylic acids, and aldehydes. Cyclic voltammetry (CV) was used to carry out the electrochemical characterization. Square wave voltammetry (SWV) was used to assess the graphene’s electroanalytical performance for the simultaneous detection of 3-nitrophenol and 4-nitrophenol. A graphene sample made from methane had the maximum current response. Using as synthesised methane-originated graphene, two nitrophenol derivatives were successfully detected simulta neously in a concentration range of 10 μM to 500 μM. The type of oxygen functional groups and the edge/plane ratio in the produced graphene were shown to have a significant impact on the graphene electroactivity. Future research ought to focus on improving synthetic conditions in order to enhance desirable characteristics.",
publisher = "Elsevier",
journal = "Microchemical Journal",
title = "The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene",
volume = "199",
pages = "110079",
doi = "10.1016/j.microc.2024.110079"
}

Fronczak, M., Karoly, Z., Banković, P.,& Mojović, Z.. (2024). The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene. in Microchemical Journal
Elsevier., 199, 110079.
https://doi.org/10.1016/j.microc.2024.110079

Fronczak M, Karoly Z, Banković P, Mojović Z. The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene. in Microchemical Journal. 2024;199:110079.
doi:10.1016/j.microc.2024.110079 .

Fronczak, Maciej, Karoly, Zoltan, Banković, Predrag, Mojović, Zorica, "The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene" in Microchemical Journal, 199 (2024):110079,
https://doi.org/10.1016/j.microc.2024.110079 . .

TY  - JOUR
AU  - Fronczak, Maciej
AU  - Karoly, Zoltan
AU  - Banković, Predrag
AU  - Mojović, Zorica
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7469
AB  - As electrode materials, graphene and its derivatives have been the subject of extensive investigation. Graphene 
has been modified by various types of materials in an effort to enhance its electrode qualities even more. This 
work sought to understand how the precursor to graphene affected the electrochemical characteristics of the final 
product and its potential use, unaltered, in the creation of sensors for nitrophenol derivatives. A set of samples of 
graphene produced using a radiofrequency (RF) thermal plasma jet are presented. Precursors for the creation of 
graphene included six basic organic compounds: alkanes, alcohols, carboxylic acids, and aldehydes. Cyclic 
voltammetry (CV) was used to carry out the electrochemical characterization. Square wave voltammetry (SWV) 
was used to assess the graphene’s electroanalytical performance for the simultaneous detection of 3-nitrophenol 
and 4-nitrophenol. A graphene sample made from methane had the maximum current response. Using as synthesised methane-originated graphene, two nitrophenol derivatives were successfully detected simulta neously in a concentration range of 10 μM to 500 μM. The type of oxygen functional groups and the edge/plane 
ratio in the produced graphene were shown to have a significant impact on the graphene electroactivity. Future 
research ought to focus on improving synthetic conditions in order to enhance desirable characteristics.
PB  - Elsevier
T2  - Microchemical Journal
T1  - The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene
VL  - 199
SP  - 110079
DO  - 10.1016/j.microc.2024.110079
ER  - 

@article{
author = "Fronczak, Maciej and Karoly, Zoltan and Banković, Predrag and Mojović, Zorica",
year = "2024",
abstract = "As electrode materials, graphene and its derivatives have been the subject of extensive investigation. Graphene 
has been modified by various types of materials in an effort to enhance its electrode qualities even more. This 
work sought to understand how the precursor to graphene affected the electrochemical characteristics of the final 
product and its potential use, unaltered, in the creation of sensors for nitrophenol derivatives. A set of samples of 
graphene produced using a radiofrequency (RF) thermal plasma jet are presented. Precursors for the creation of 
graphene included six basic organic compounds: alkanes, alcohols, carboxylic acids, and aldehydes. Cyclic 
voltammetry (CV) was used to carry out the electrochemical characterization. Square wave voltammetry (SWV) 
was used to assess the graphene’s electroanalytical performance for the simultaneous detection of 3-nitrophenol 
and 4-nitrophenol. A graphene sample made from methane had the maximum current response. Using as synthesised methane-originated graphene, two nitrophenol derivatives were successfully detected simulta neously in a concentration range of 10 μM to 500 μM. The type of oxygen functional groups and the edge/plane 
ratio in the produced graphene were shown to have a significant impact on the graphene electroactivity. Future 
research ought to focus on improving synthetic conditions in order to enhance desirable characteristics.",
publisher = "Elsevier",
journal = "Microchemical Journal",
title = "The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene",
volume = "199",
pages = "110079",
doi = "10.1016/j.microc.2024.110079"
}

Fronczak, M., Karoly, Z., Banković, P.,& Mojović, Z.. (2024). The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene. in Microchemical Journal
Elsevier., 199, 110079.
https://doi.org/10.1016/j.microc.2024.110079

Fronczak M, Karoly Z, Banković P, Mojović Z. The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene. in Microchemical Journal. 2024;199:110079.
doi:10.1016/j.microc.2024.110079 .

Fronczak, Maciej, Karoly, Zoltan, Banković, Predrag, Mojović, Zorica, "The influence of precursor selection on electrochemical properties of  radiofrequency thermal plasma synthesized graphene" in Microchemical Journal, 199 (2024):110079,
https://doi.org/10.1016/j.microc.2024.110079 . .

TY  - JOUR
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Popović, Aleksandar
AU  - Dojčinović, Biljana
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6902
AB  - Catalytic degradation of tartrazine in the presence of Oxone® activated by a catalyst constituted of cobalt supported on a nanocomposite of smectite with chitosan-derived carbon was investigated. The catalyst was synthesized using cobalt impregnation followed by carbonization at 773 K in an inert atmosphere. The synthesized catalyst was previously fully characterized using appropriate characterization methods, including XRPD, XPS, FTIR, HR-TEM, and low-temperature N2-physisorption analysis. The catalytic experiments were performed by varying different experimental parameters (dye concentration, Oxone® concentration, temperature, and initial pH of the reaction solution). The kinetic and thermodynamic parameters were estimated from the experimental results. The kinetics data showed the best fit with the pseudo-first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation. The catalyst showed excellent performance at low temperatures even at 298 K, and in the wide range of pH values.
PB  - Serbian Ceramic Society
T2  - Science of Sintering
T1  - Co supported chitosan-derived carbon-smectite catalyst in Oxone® induced at dye degradation
DO  - 10.2298/SOS230427037S
ER  - 

@article{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Popović, Aleksandar and Dojčinović, Biljana and Milutinović Nikolić, Aleksandra and Banković, Predrag and Ajduković, Marija",
year = "2023",
abstract = "Catalytic degradation of tartrazine in the presence of Oxone® activated by a catalyst constituted of cobalt supported on a nanocomposite of smectite with chitosan-derived carbon was investigated. The catalyst was synthesized using cobalt impregnation followed by carbonization at 773 K in an inert atmosphere. The synthesized catalyst was previously fully characterized using appropriate characterization methods, including XRPD, XPS, FTIR, HR-TEM, and low-temperature N2-physisorption analysis. The catalytic experiments were performed by varying different experimental parameters (dye concentration, Oxone® concentration, temperature, and initial pH of the reaction solution). The kinetic and thermodynamic parameters were estimated from the experimental results. The kinetics data showed the best fit with the pseudo-first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation. The catalyst showed excellent performance at low temperatures even at 298 K, and in the wide range of pH values.",
publisher = "Serbian Ceramic Society",
journal = "Science of Sintering",
title = "Co supported chitosan-derived carbon-smectite catalyst in Oxone® induced at dye degradation",
doi = "10.2298/SOS230427037S"
}

Stevanović, G., Jović-Jovičić, N., Popović, A., Dojčinović, B., Milutinović Nikolić, A., Banković, P.,& Ajduković, M.. (2023). Co supported chitosan-derived carbon-smectite catalyst in Oxone® induced at dye degradation. in Science of Sintering
Serbian Ceramic Society..
https://doi.org/10.2298/SOS230427037S

Stevanović G, Jović-Jovičić N, Popović A, Dojčinović B, Milutinović Nikolić A, Banković P, Ajduković M. Co supported chitosan-derived carbon-smectite catalyst in Oxone® induced at dye degradation. in Science of Sintering. 2023;.
doi:10.2298/SOS230427037S .

Stevanović, Gordana, Jović-Jovičić, Nataša, Popović, Aleksandar, Dojčinović, Biljana, Milutinović Nikolić, Aleksandra, Banković, Predrag, Ajduković, Marija, "Co supported chitosan-derived carbon-smectite catalyst in Oxone® induced at dye degradation" in Science of Sintering (2023),
https://doi.org/10.2298/SOS230427037S . .

TY  - CONF
AU  - Maksimović, Jelena
AU  - Pagnacco, Maja
AU  - Ajduković, Marija
AU  - Stevanović, Gordana
AU  - Banković, Predrag
AU  - Milutinović Nikolić, Aleksandra
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6748
AB  - The Briggs-Rauscher oscillatory reaction, which represents the oxidation of malonic acid in 
the presence of hydrogen peroxide and potassium iodate catalyzed by manganese ion in an 
acidic environment, proved to be extremely sensitive for testing insoluble materials, such as 
bronzes and clays. It was shown that origin of bentonite has high impact on the length of the 
oscillation time. In this work, the influence of different sizes of bentonite particles from the 
Bogovina deposit on the Briggs-Rauscer oscillatory reaction in the conditions of a closed 
reactor was investigated. Five particle sizes of bentonite, (< 25 µm, < 50 µm, < 75 µm, < 150 
µm and < 300 µm) having identical mass of 0.15 g, were tested. The addition of different 
particle sizes of Bogovina clay does not significantly influence the basic BR oscillogram.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - The effect of different particle sizes of bentonite from the Bogovina deposit on the Briggs-Rauscher oscillatory reaction
SP  - 71
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_cer_6748
ER  - 

@conference{
author = "Maksimović, Jelena and Pagnacco, Maja and Ajduković, Marija and Stevanović, Gordana and Banković, Predrag and Milutinović Nikolić, Aleksandra",
year = "2023",
abstract = "The Briggs-Rauscher oscillatory reaction, which represents the oxidation of malonic acid in 
the presence of hydrogen peroxide and potassium iodate catalyzed by manganese ion in an 
acidic environment, proved to be extremely sensitive for testing insoluble materials, such as 
bronzes and clays. It was shown that origin of bentonite has high impact on the length of the 
oscillation time. In this work, the influence of different sizes of bentonite particles from the 
Bogovina deposit on the Briggs-Rauscer oscillatory reaction in the conditions of a closed 
reactor was investigated. Five particle sizes of bentonite, (< 25 µm, < 50 µm, < 75 µm, < 150 
µm and < 300 µm) having identical mass of 0.15 g, were tested. The addition of different 
particle sizes of Bogovina clay does not significantly influence the basic BR oscillogram.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "The effect of different particle sizes of bentonite from the Bogovina deposit on the Briggs-Rauscher oscillatory reaction",
pages = "71-72",
url = "https://hdl.handle.net/21.15107/rcub_cer_6748"
}

Maksimović, J., Pagnacco, M., Ajduković, M., Stevanović, G., Banković, P.,& Milutinović Nikolić, A.. (2023). The effect of different particle sizes of bentonite from the Bogovina deposit on the Briggs-Rauscher oscillatory reaction. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 71-72.
https://hdl.handle.net/21.15107/rcub_cer_6748

Maksimović J, Pagnacco M, Ajduković M, Stevanović G, Banković P, Milutinović Nikolić A. The effect of different particle sizes of bentonite from the Bogovina deposit on the Briggs-Rauscher oscillatory reaction. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:71-72.
https://hdl.handle.net/21.15107/rcub_cer_6748 .

Maksimović, Jelena, Pagnacco, Maja, Ajduković, Marija, Stevanović, Gordana, Banković, Predrag, Milutinović Nikolić, Aleksandra, "The effect of different particle sizes of bentonite from the Bogovina deposit on the Briggs-Rauscher oscillatory reaction" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):71-72,
https://hdl.handle.net/21.15107/rcub_cer_6748 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Mojović, Zorica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6744
AB  - Bentonite clay has shown to be a versatile material that can be easily modified and applied as 
an adsorbent, (electro)catalyst, or as a support for (electro)catalyst. The carbon-clay composites combine a relatively high specific surface area of the clay with a good electrical conductivity of carbon.In this paper, the effect of the applied carbonization procedure on the electrochemical properties of bentonite-carbon composite was investigated. Chitosan-modified bentonite was carbonized by conventional thermal degradation and by the hydrothermal procedure. The electrochemical characterization was performed by cyclic voltammetry and electrochemical impedance spectroscopy. The response to Fe(CN)63-/4- and Ru(NH3)62+/3+ redox probe showed that the thermally treated sample shows somewhat higher electrochemical activity and lower charge-transfer resistance. However, an investigation of composites activity toward 
 minophenazone, performed in the pH range 3-9 showed that the hydrothermally obtained sample shows higher activity at pH above 5, while the thermally obtained sample was more active at pH below 5.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Carbonized chitosan-bentonite as electrode material
SP  - 73
EP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_cer_6744
ER  - 

@conference{
author = "Stevanović, Gordana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Mojović, Zorica",
year = "2023",
abstract = "Bentonite clay has shown to be a versatile material that can be easily modified and applied as 
an adsorbent, (electro)catalyst, or as a support for (electro)catalyst. The carbon-clay composites combine a relatively high specific surface area of the clay with a good electrical conductivity of carbon.In this paper, the effect of the applied carbonization procedure on the electrochemical properties of bentonite-carbon composite was investigated. Chitosan-modified bentonite was carbonized by conventional thermal degradation and by the hydrothermal procedure. The electrochemical characterization was performed by cyclic voltammetry and electrochemical impedance spectroscopy. The response to Fe(CN)63-/4- and Ru(NH3)62+/3+ redox probe showed that the thermally treated sample shows somewhat higher electrochemical activity and lower charge-transfer resistance. However, an investigation of composites activity toward 
 minophenazone, performed in the pH range 3-9 showed that the hydrothermally obtained sample shows higher activity at pH above 5, while the thermally obtained sample was more active at pH below 5.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Carbonized chitosan-bentonite as electrode material",
pages = "73-73",
url = "https://hdl.handle.net/21.15107/rcub_cer_6744"
}

Stevanović, G., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Mojović, Z.. (2023). Carbonized chitosan-bentonite as electrode material. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 73-73.
https://hdl.handle.net/21.15107/rcub_cer_6744

Stevanović G, Ajduković M, Jović-Jovičić N, Banković P, Mojović Z. Carbonized chitosan-bentonite as electrode material. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:73-73.
https://hdl.handle.net/21.15107/rcub_cer_6744 .

Stevanović, Gordana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Mojović, Zorica, "Carbonized chitosan-bentonite as electrode material" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):73-73,
https://hdl.handle.net/21.15107/rcub_cer_6744 .

TY  - JOUR
AU  - Ajduković, Marija
AU  - Stevanović, Gordana
AU  - Marinović, Sanja
AU  - Mojović, Zorica
AU  - Banković, Predrag
AU  - Radulović, Katarina
AU  - Jović-Jovičić, Nataša
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6712
AB  - The employment of compounds obtained from natural sources to produce adsorbents and their application in the elimination of antibiotics from industrial effluents have gained significant attention because of their low production cost and sustainability. Herein, chitosan (biopolymer) and smectite (abundant clay mineral) were used for the low-cost and eco-friendly synthesis of a new type of adsorbent. A low-energy-consumption hydrothermal process was applied to the synthesis of the chitosan-derived carbon–smectite nanocomposite with cobalt (H_Co/C-S). The produced nanocomposite was characterized using elemental analysis, ICP-OES, XRPD, low-temperature N2 adsorption–desorption isotherms, FTIR analysis, and point of zero charge. H_Co/C-S (SBET = 0.73 m2 g−1, d001 = 1.40 nm, pHPZC = 5.3) was evaluated as a ciprofloxacin adsorbent in aqueous solution. Experimental data were fitted with different kinetic models and interpreted by selected adsorption isotherms. The pseudo-second-order model was found to be the most appropriate, while ciprofloxacin adsorption onto H_Co/C-S was best described by the Redlich–Peterson isotherm (R2 = 0.985). The maximum adsorption capacity of H_Co/C-S, according to the Langmuir isotherm (R2 = 0.977), was 72.3 mg g−1. Desorption and thermodynamic studies were performed. The obtained results indicated that the new hierarchically designed H_Co/C-S has promising potential to be further tested for application in real wastewater treatment.
PB  - MDPI
T2  - Water
T1  - Ciprofloxacin Adsorption onto a Smectite–Chitosan-Derived Nanocomposite Obtained by Hydrothermal Synthesis
VL  - 15
IS  - 14
SP  - 2608
DO  - 10.3390/w15142608
ER  - 

@article{
author = "Ajduković, Marija and Stevanović, Gordana and Marinović, Sanja and Mojović, Zorica and Banković, Predrag and Radulović, Katarina and Jović-Jovičić, Nataša",
year = "2023",
abstract = "The employment of compounds obtained from natural sources to produce adsorbents and their application in the elimination of antibiotics from industrial effluents have gained significant attention because of their low production cost and sustainability. Herein, chitosan (biopolymer) and smectite (abundant clay mineral) were used for the low-cost and eco-friendly synthesis of a new type of adsorbent. A low-energy-consumption hydrothermal process was applied to the synthesis of the chitosan-derived carbon–smectite nanocomposite with cobalt (H_Co/C-S). The produced nanocomposite was characterized using elemental analysis, ICP-OES, XRPD, low-temperature N2 adsorption–desorption isotherms, FTIR analysis, and point of zero charge. H_Co/C-S (SBET = 0.73 m2 g−1, d001 = 1.40 nm, pHPZC = 5.3) was evaluated as a ciprofloxacin adsorbent in aqueous solution. Experimental data were fitted with different kinetic models and interpreted by selected adsorption isotherms. The pseudo-second-order model was found to be the most appropriate, while ciprofloxacin adsorption onto H_Co/C-S was best described by the Redlich–Peterson isotherm (R2 = 0.985). The maximum adsorption capacity of H_Co/C-S, according to the Langmuir isotherm (R2 = 0.977), was 72.3 mg g−1. Desorption and thermodynamic studies were performed. The obtained results indicated that the new hierarchically designed H_Co/C-S has promising potential to be further tested for application in real wastewater treatment.",
publisher = "MDPI",
journal = "Water",
title = "Ciprofloxacin Adsorption onto a Smectite–Chitosan-Derived Nanocomposite Obtained by Hydrothermal Synthesis",
volume = "15",
number = "14",
pages = "2608",
doi = "10.3390/w15142608"
}

Ajduković, M., Stevanović, G., Marinović, S., Mojović, Z., Banković, P., Radulović, K.,& Jović-Jovičić, N.. (2023). Ciprofloxacin Adsorption onto a Smectite–Chitosan-Derived Nanocomposite Obtained by Hydrothermal Synthesis. in Water
MDPI., 15(14), 2608.
https://doi.org/10.3390/w15142608

Ajduković M, Stevanović G, Marinović S, Mojović Z, Banković P, Radulović K, Jović-Jovičić N. Ciprofloxacin Adsorption onto a Smectite–Chitosan-Derived Nanocomposite Obtained by Hydrothermal Synthesis. in Water. 2023;15(14):2608.
doi:10.3390/w15142608 .

Ajduković, Marija, Stevanović, Gordana, Marinović, Sanja, Mojović, Zorica, Banković, Predrag, Radulović, Katarina, Jović-Jovičić, Nataša, "Ciprofloxacin Adsorption onto a Smectite–Chitosan-Derived Nanocomposite Obtained by Hydrothermal Synthesis" in Water, 15, no. 14 (2023):2608,
https://doi.org/10.3390/w15142608 . .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6543
AB  - Catalytic oxidative degradation of a textile dye Orange G was investigated in the reaction
system where oxidant Oxone® was used as a source of SO4˙ˉ anion radicals. Cobalt-doped
alumina was tested as a heterogenous catalysts for Oxone® activation. The catalyst was
synthetized and calcined at 500 °C. The influence of different reaction parameters was
followed: the Oxone® dosage, Orange G concentration and initial pH of the reaction solution.
The Oxone® dosage was varied from 10 mg to 80 mg. Small differences in degradation
efficiency were observed but mass of 40 mg of Oxone® was found to be optimal in the first
hour of the reaction. The effect of the Orange G concentration was investigated in the range
from 20 mg dm-3 to 50mg dm-3. For the concentration of 20 mg dm-3 the reaction was much
faster than for other investigated concentrations. The effect of the pH was tested in the range
from 2 to 9. The optimal pH range was found to be between 6 and 9, but reaction was feasible
also for lower pH. It can be concluded that investigated catalyst is applicable with high
efficiency in the wide range of Oxone® dosages, dye concentrations and initial pH values.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Catalytic oxidative degradation of Orange G dye: the effect of different reaction parameters
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_cer_6543
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2023",
abstract = "Catalytic oxidative degradation of a textile dye Orange G was investigated in the reaction
system where oxidant Oxone® was used as a source of SO4˙ˉ anion radicals. Cobalt-doped
alumina was tested as a heterogenous catalysts for Oxone® activation. The catalyst was
synthetized and calcined at 500 °C. The influence of different reaction parameters was
followed: the Oxone® dosage, Orange G concentration and initial pH of the reaction solution.
The Oxone® dosage was varied from 10 mg to 80 mg. Small differences in degradation
efficiency were observed but mass of 40 mg of Oxone® was found to be optimal in the first
hour of the reaction. The effect of the Orange G concentration was investigated in the range
from 20 mg dm-3 to 50mg dm-3. For the concentration of 20 mg dm-3 the reaction was much
faster than for other investigated concentrations. The effect of the pH was tested in the range
from 2 to 9. The optimal pH range was found to be between 6 and 9, but reaction was feasible
also for lower pH. It can be concluded that investigated catalyst is applicable with high
efficiency in the wide range of Oxone® dosages, dye concentrations and initial pH values.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Catalytic oxidative degradation of Orange G dye: the effect of different reaction parameters",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_cer_6543"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2023). Catalytic oxidative degradation of Orange G dye: the effect of different reaction parameters. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 80-80.
https://hdl.handle.net/21.15107/rcub_cer_6543

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. Catalytic oxidative degradation of Orange G dye: the effect of different reaction parameters. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:80-80.
https://hdl.handle.net/21.15107/rcub_cer_6543 .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "Catalytic oxidative degradation of Orange G dye: the effect of different reaction parameters" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):80-80,
https://hdl.handle.net/21.15107/rcub_cer_6543 .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Stevanović, Gordana
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6542
AB  - Cobalt-doped alumina catalyst was tested in peroxymonosulfate-induced degradation of two
textile dyes: anionic-Orange G (OG) and cationic-Basic Blue 41 (BB). Oxone®, mixed salt
containing peroxymonosulfate as an active component, was used as an oxidizing agent.
Catalytic tests were performed in a thermostated reactor equipped with a mechanical stirrer.
Dyes degradation was followed using a UV-Vis spectrophotometer. Characteristic peak
maximum in UV-Vis spectrum was identified at λ=478 nm for OG, and at λ=609 nm for BB.
Two OG concentrations were applied: 20 mg dm-3 and 50 mg dm-3. BB concentration was 20
mg dm-3 in all experiments. The reaction temperature was 30 ºC. Apart from simultaneous
dyes degradation, single-component solution degradation tests were also performed. Both
dyes were found to be degradable in single dyes systems, with OG showing a higher
degradation rate. When it comes to simultaneous degradation, it was noticed that the
degradation of the BB did not occur while OG was present in the system. This phenomenon
can probably be attributed to the difference in the molecular structure and charge of the
investigated dyes.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Simultaneous degradation of two textile dyes Orange G and Basic blue 41
SP  - 79
EP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_cer_6542
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Stevanović, Gordana and Banković, Predrag and Novaković, Tatjana",
year = "2023",
abstract = "Cobalt-doped alumina catalyst was tested in peroxymonosulfate-induced degradation of two
textile dyes: anionic-Orange G (OG) and cationic-Basic Blue 41 (BB). Oxone®, mixed salt
containing peroxymonosulfate as an active component, was used as an oxidizing agent.
Catalytic tests were performed in a thermostated reactor equipped with a mechanical stirrer.
Dyes degradation was followed using a UV-Vis spectrophotometer. Characteristic peak
maximum in UV-Vis spectrum was identified at λ=478 nm for OG, and at λ=609 nm for BB.
Two OG concentrations were applied: 20 mg dm-3 and 50 mg dm-3. BB concentration was 20
mg dm-3 in all experiments. The reaction temperature was 30 ºC. Apart from simultaneous
dyes degradation, single-component solution degradation tests were also performed. Both
dyes were found to be degradable in single dyes systems, with OG showing a higher
degradation rate. When it comes to simultaneous degradation, it was noticed that the
degradation of the BB did not occur while OG was present in the system. This phenomenon
can probably be attributed to the difference in the molecular structure and charge of the
investigated dyes.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Simultaneous degradation of two textile dyes Orange G and Basic blue 41",
pages = "79-79",
url = "https://hdl.handle.net/21.15107/rcub_cer_6542"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Stevanović, G., Banković, P.,& Novaković, T.. (2023). Simultaneous degradation of two textile dyes Orange G and Basic blue 41. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 79-79.
https://hdl.handle.net/21.15107/rcub_cer_6542

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Stevanović G, Banković P, Novaković T. Simultaneous degradation of two textile dyes Orange G and Basic blue 41. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:79-79.
https://hdl.handle.net/21.15107/rcub_cer_6542 .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Stevanović, Gordana, Banković, Predrag, Novaković, Tatjana, "Simultaneous degradation of two textile dyes Orange G and Basic blue 41" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):79-79,
https://hdl.handle.net/21.15107/rcub_cer_6542 .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6523
AB  - Cobalt-doped alumina catalyst was tested in peroxymonosulfate-induced degradation of two
textile dyes: anionic-Orange G (OG) and cationic-Basic Blue 41 (BB). Oxone®, mixed salt
containing peroxymonosulfate as an active component, was used as an oxidizing agent.
Catalytic tests were performed in a thermostated reactor equipped with a mechanical stirrer.
Dyes degradation was followed using a UV-Vis spectrophotometer. Characteristic peak
maximum in UV-Vis spectrum was identified at λ=478 nm for OG, and at λ=609 nm for BB.
Two OG concentrations were applied: 20 mg dm-3 and 50 mg dm-3. BB concentration was 20
mg dm-3 in all experiments. The reaction temperature was 30 ºC. Apart from simultaneous
dyes degradation, single-component solution degradation tests were also performed. Both
dyes were found to be degradable in single dyes systems, with OG showing a higher
degradation rate. When it comes to simultaneous degradation, it was noticed that the
degradation of the BB did not occur while OG was present in the system. This phenomenon
can probably be attributed to the difference in the molecular structure and charge of the
investigated dyes.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - The effect of the initial temperature and pH on textile dye catalytic oxidative degradation using cobalt-doped alumina catalysts
SP  - 78
EP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_cer_6523
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2023",
abstract = "Cobalt-doped alumina catalyst was tested in peroxymonosulfate-induced degradation of two
textile dyes: anionic-Orange G (OG) and cationic-Basic Blue 41 (BB). Oxone®, mixed salt
containing peroxymonosulfate as an active component, was used as an oxidizing agent.
Catalytic tests were performed in a thermostated reactor equipped with a mechanical stirrer.
Dyes degradation was followed using a UV-Vis spectrophotometer. Characteristic peak
maximum in UV-Vis spectrum was identified at λ=478 nm for OG, and at λ=609 nm for BB.
Two OG concentrations were applied: 20 mg dm-3 and 50 mg dm-3. BB concentration was 20
mg dm-3 in all experiments. The reaction temperature was 30 ºC. Apart from simultaneous
dyes degradation, single-component solution degradation tests were also performed. Both
dyes were found to be degradable in single dyes systems, with OG showing a higher
degradation rate. When it comes to simultaneous degradation, it was noticed that the
degradation of the BB did not occur while OG was present in the system. This phenomenon
can probably be attributed to the difference in the molecular structure and charge of the
investigated dyes.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "The effect of the initial temperature and pH on textile dye catalytic oxidative degradation using cobalt-doped alumina catalysts",
pages = "78-79",
url = "https://hdl.handle.net/21.15107/rcub_cer_6523"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2023). The effect of the initial temperature and pH on textile dye catalytic oxidative degradation using cobalt-doped alumina catalysts. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 78-79.
https://hdl.handle.net/21.15107/rcub_cer_6523

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. The effect of the initial temperature and pH on textile dye catalytic oxidative degradation using cobalt-doped alumina catalysts. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:78-79.
https://hdl.handle.net/21.15107/rcub_cer_6523 .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "The effect of the initial temperature and pH on textile dye catalytic oxidative degradation using cobalt-doped alumina catalysts" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):78-79,
https://hdl.handle.net/21.15107/rcub_cer_6523 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Marinović, Sanja
AU  - Pantić, Biljana
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6522
AB  - Seawater electrolysis has recently been recognized as a new hope for affordable renewable
energy storage. However, its practical application is still limited due to the presence of
various electroactive ions in seawater. For example, the chloride ions compete with the
oxygen evolution reaction (OER) causing low efficiency of the OER, and corrosion of both
the anode and the cathode. To overcome these issues, the development of catalysts with high
activity and selectivity towards OER is of primary importance.Herein, Co supported
chitosan–derived carbon–smectite nanocomposite (Co/cCh-S) was tested as an electrocatalyst
for the OER in alkaline and simulated alkaline seawater solution. Co/cCh-S was previously
synthetized using impregnation–carbonization method at 400 °C in an inert atmosphere and
characterized in detail. The electrochemical performance of Co/cCh-S modified GCE was
studied by cyclic voltammetry, linear sweep voltammetry, and electrochemical impedance
spectroscopy. According to the obtained values for onset potential, overpotential, and Tafel
slope, the Co/cCh-S electrode could be considered a good electrocatalyst for OER in an
alkaline solution. Moreover, no noticeable change in the performance of the Co/cCh-S
electrode was observed in the presence of chloride ions. This work could be a starting point
for designing an inexpensive, earth-abundant OER catalyst for seawater electrolysis.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Co supported chitosan–derived carbon–smectite–catalyst for oxygen evolution reaction in simulated alkaline seawater solution
SP  - 77
EP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_cer_6522
ER  - 

@conference{
author = "Stevanović, Gordana and Ajduković, Marija and Jović-Jovičić, Nataša and Marinović, Sanja and Pantić, Biljana and Banković, Predrag and Mudrinić, Tihana",
year = "2023",
abstract = "Seawater electrolysis has recently been recognized as a new hope for affordable renewable
energy storage. However, its practical application is still limited due to the presence of
various electroactive ions in seawater. For example, the chloride ions compete with the
oxygen evolution reaction (OER) causing low efficiency of the OER, and corrosion of both
the anode and the cathode. To overcome these issues, the development of catalysts with high
activity and selectivity towards OER is of primary importance.Herein, Co supported
chitosan–derived carbon–smectite nanocomposite (Co/cCh-S) was tested as an electrocatalyst
for the OER in alkaline and simulated alkaline seawater solution. Co/cCh-S was previously
synthetized using impregnation–carbonization method at 400 °C in an inert atmosphere and
characterized in detail. The electrochemical performance of Co/cCh-S modified GCE was
studied by cyclic voltammetry, linear sweep voltammetry, and electrochemical impedance
spectroscopy. According to the obtained values for onset potential, overpotential, and Tafel
slope, the Co/cCh-S electrode could be considered a good electrocatalyst for OER in an
alkaline solution. Moreover, no noticeable change in the performance of the Co/cCh-S
electrode was observed in the presence of chloride ions. This work could be a starting point
for designing an inexpensive, earth-abundant OER catalyst for seawater electrolysis.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Co supported chitosan–derived carbon–smectite–catalyst for oxygen evolution reaction in simulated alkaline seawater solution",
pages = "77-77",
url = "https://hdl.handle.net/21.15107/rcub_cer_6522"
}

Stevanović, G., Ajduković, M., Jović-Jovičić, N., Marinović, S., Pantić, B., Banković, P.,& Mudrinić, T.. (2023). Co supported chitosan–derived carbon–smectite–catalyst for oxygen evolution reaction in simulated alkaline seawater solution. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 77-77.
https://hdl.handle.net/21.15107/rcub_cer_6522

Stevanović G, Ajduković M, Jović-Jovičić N, Marinović S, Pantić B, Banković P, Mudrinić T. Co supported chitosan–derived carbon–smectite–catalyst for oxygen evolution reaction in simulated alkaline seawater solution. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:77-77.
https://hdl.handle.net/21.15107/rcub_cer_6522 .

Stevanović, Gordana, Ajduković, Marija, Jović-Jovičić, Nataša, Marinović, Sanja, Pantić, Biljana, Banković, Predrag, Mudrinić, Tihana, "Co supported chitosan–derived carbon–smectite–catalyst for oxygen evolution reaction in simulated alkaline seawater solution" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):77-77,
https://hdl.handle.net/21.15107/rcub_cer_6522 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Mojović, Zorica
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6521
AB  - Nowadays, environmental pollution caused by antibiotics attracts extensive attention.
Adsorption has been successfully applied in the treatment of wastewater loaded by
pharmaceutics, while diverse natural and eco-friendly materials have been recognized as
promising adsorbents. In this work smectite clay from Bogovina (Serbia) and biopolymer
chitosan (derived from waste of crustaceans) were used as eco-friendly starting materials for
the adsorbent synthesis. The combination of transition metal, carbon materials, and clay
minerals represents a useful way to develop functional nanocomposites with benefiting
synergistic properties of all components.
Simple, one-step hydrothermal procedure conducted at 180 ℃ for 24h was applied for
synthesis of cobalt/smectite/chitosan-derived carbon (H_Co/C-S) nanocomposite. The sample
was characterized using XRPD, FTIR, and low-temperature N2-physisorption analysis and
tested as adsorbent of ciprofloxacin (CPX). The effects of temperature, initial pH, and CPX
concentration on the adsorption process were investigated. The adsorption results were fitted
by Langmuir, Freundlich, and Sips adsorption isotherms. Additionally, CPX adsorption was
described by appropriate kinetics and thermodynamic parameters. It was found that
temperature increase had the beneficial effect on CPX adsorption, while investigated
adsorbent was efficient in a broad pH range (4-8). The H_Co/C-S adsorbent was found to be
efficient in the removal of CPX antibiotic.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Ciprofloxacin adsorption onto Co/chitosan-derived carbon/smectite nanocomposite obtained by the hydrothermal synthesis
SP  - 76
EP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_cer_6521
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Marinović, Sanja and Mudrinić, Tihana and Mojović, Zorica and Banković, Predrag and Ajduković, Marija",
year = "2023",
abstract = "Nowadays, environmental pollution caused by antibiotics attracts extensive attention.
Adsorption has been successfully applied in the treatment of wastewater loaded by
pharmaceutics, while diverse natural and eco-friendly materials have been recognized as
promising adsorbents. In this work smectite clay from Bogovina (Serbia) and biopolymer
chitosan (derived from waste of crustaceans) were used as eco-friendly starting materials for
the adsorbent synthesis. The combination of transition metal, carbon materials, and clay
minerals represents a useful way to develop functional nanocomposites with benefiting
synergistic properties of all components.
Simple, one-step hydrothermal procedure conducted at 180 ℃ for 24h was applied for
synthesis of cobalt/smectite/chitosan-derived carbon (H_Co/C-S) nanocomposite. The sample
was characterized using XRPD, FTIR, and low-temperature N2-physisorption analysis and
tested as adsorbent of ciprofloxacin (CPX). The effects of temperature, initial pH, and CPX
concentration on the adsorption process were investigated. The adsorption results were fitted
by Langmuir, Freundlich, and Sips adsorption isotherms. Additionally, CPX adsorption was
described by appropriate kinetics and thermodynamic parameters. It was found that
temperature increase had the beneficial effect on CPX adsorption, while investigated
adsorbent was efficient in a broad pH range (4-8). The H_Co/C-S adsorbent was found to be
efficient in the removal of CPX antibiotic.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Ciprofloxacin adsorption onto Co/chitosan-derived carbon/smectite nanocomposite obtained by the hydrothermal synthesis",
pages = "76-76",
url = "https://hdl.handle.net/21.15107/rcub_cer_6521"
}

Stevanović, G., Jović-Jovičić, N., Marinović, S., Mudrinić, T., Mojović, Z., Banković, P.,& Ajduković, M.. (2023). Ciprofloxacin adsorption onto Co/chitosan-derived carbon/smectite nanocomposite obtained by the hydrothermal synthesis. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 76-76.
https://hdl.handle.net/21.15107/rcub_cer_6521

Stevanović G, Jović-Jovičić N, Marinović S, Mudrinić T, Mojović Z, Banković P, Ajduković M. Ciprofloxacin adsorption onto Co/chitosan-derived carbon/smectite nanocomposite obtained by the hydrothermal synthesis. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:76-76.
https://hdl.handle.net/21.15107/rcub_cer_6521 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Marinović, Sanja, Mudrinić, Tihana, Mojović, Zorica, Banković, Predrag, Ajduković, Marija, "Ciprofloxacin adsorption onto Co/chitosan-derived carbon/smectite nanocomposite obtained by the hydrothermal synthesis" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):76-76,
https://hdl.handle.net/21.15107/rcub_cer_6521 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Krstić, Jugoslav
AU  - Marinović, Sanja
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6520
AB  - Wastewaters polluted with high concentration of dyes are produced by various industries.
Therefore, it is important to perform treatment of the dye-contaminated waters before their
discharge into recipients in order to protect the environment. Sulfate radical-based advanced
oxidation processes that involve use ofactivated Oxone® can be used for degradation of dyes.
In this work,nanocomposite catalysts constituted ofCo supported on smectite with chitosanderived
carbon were used for activation of Oxone. Catalysts were synthetizedusingan
impregnation-carbonization procedure and denoted as Co/cCh-S-T (T stands for applied
carbonization temperature). The carbonization was performed in the temperature range from
400°C to 700°C in the flow of N2 providing inert atmosphere. The synthesized catalysts were
fully characterized using XRPD, XPS, FTIR, HR-TEM, and low-temperature N2-
physisorption analysis, and evaluated in the Oxone® induced oxidative degradation of food
dye tartrazine. The best performing catalyst was investigated in detail regarding catalytic
degradation of tartrazine with respect to degradation time and different experimental
parameters (dye concentration, Oxone® concentration, temperature, and initial pH of the
reaction solution). The kinetic and thermodynamic parameters were calculated from the
experimental results.The selected catalyst showed excellent performance in the Oxone®
initiated tartrazine degradationat low temperatures (even at 25°C) and in the wide range of pH
values.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Evaluation of cobalt supported chitosan-derived carbon-smectite catalysts in Oxone® induced dye degradation
SP  - 37
EP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_cer_6520
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Krstić, Jugoslav and Marinović, Sanja and Banković, Predrag and Ajduković, Marija",
year = "2023",
abstract = "Wastewaters polluted with high concentration of dyes are produced by various industries.
Therefore, it is important to perform treatment of the dye-contaminated waters before their
discharge into recipients in order to protect the environment. Sulfate radical-based advanced
oxidation processes that involve use ofactivated Oxone® can be used for degradation of dyes.
In this work,nanocomposite catalysts constituted ofCo supported on smectite with chitosanderived
carbon were used for activation of Oxone. Catalysts were synthetizedusingan
impregnation-carbonization procedure and denoted as Co/cCh-S-T (T stands for applied
carbonization temperature). The carbonization was performed in the temperature range from
400°C to 700°C in the flow of N2 providing inert atmosphere. The synthesized catalysts were
fully characterized using XRPD, XPS, FTIR, HR-TEM, and low-temperature N2-
physisorption analysis, and evaluated in the Oxone® induced oxidative degradation of food
dye tartrazine. The best performing catalyst was investigated in detail regarding catalytic
degradation of tartrazine with respect to degradation time and different experimental
parameters (dye concentration, Oxone® concentration, temperature, and initial pH of the
reaction solution). The kinetic and thermodynamic parameters were calculated from the
experimental results.The selected catalyst showed excellent performance in the Oxone®
initiated tartrazine degradationat low temperatures (even at 25°C) and in the wide range of pH
values.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Evaluation of cobalt supported chitosan-derived carbon-smectite catalysts in Oxone® induced dye degradation",
pages = "37-37",
url = "https://hdl.handle.net/21.15107/rcub_cer_6520"
}

Stevanović, G., Jović-Jovičić, N., Krstić, J., Marinović, S., Banković, P.,& Ajduković, M.. (2023). Evaluation of cobalt supported chitosan-derived carbon-smectite catalysts in Oxone® induced dye degradation. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Serbian Ceramic Society., 37-37.
https://hdl.handle.net/21.15107/rcub_cer_6520

Stevanović G, Jović-Jovičić N, Krstić J, Marinović S, Banković P, Ajduković M. Evaluation of cobalt supported chitosan-derived carbon-smectite catalysts in Oxone® induced dye degradation. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:37-37.
https://hdl.handle.net/21.15107/rcub_cer_6520 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Krstić, Jugoslav, Marinović, Sanja, Banković, Predrag, Ajduković, Marija, "Evaluation of cobalt supported chitosan-derived carbon-smectite catalysts in Oxone® induced dye degradation" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):37-37,
https://hdl.handle.net/21.15107/rcub_cer_6520 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Krstić, Jugoslav
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6436
AB  - Catalytic degradation of tartrazine in the presence of Oxone®

was investigated. Oxone was activated by
nanocomposite catalysts consisted of cobalt supported on smectite with chitosan-derived carbon loading. The
catalyst was synthetized using an impregnation-carbonization procedure and NaHCO3 was used as green
porogen. Smectite rich bentonite clay from Bogovina, Serbia was used as started material. After milling,
sieving and hydroseparation the fractions containing particles up to 2 μm in diameter were separated (denoted
as S). The intercalation of chitosan into the smectite was performed according to the previously described
procedure [1]. Obtained chitosan-smectite nanocomposite (Ch-S) was submitted to the wetness impregnation
method by Co2+ ions [1]. The impregnation was performed by slow addition of Co(NO3)2 solution to Ch-S
powder resulting in 0.03 g Co2+ per 1 g of Ch-S. After drying, the sample was mixed with NaHCO3 in a mass
ratio 1:3, placed in a tube furnace and carbonized in a stream of N2 at 500°C for 1 h. The potassium
peroxymonosulfate (Oxone®

, i.e. 2KHSO5∙KHSO4∙K2SO4) was used as a source of sulfate radicals generated by
cobalt from the catalysts. The catalytic activity of the N/Co/cCh-S was compared with catalyst Co/cCh-S
obtained by the same synthesis procedure without activation by NaHCO3. The degradation of tartrazine was
monitored using UV–Vis spectrophotometry at wavelength of 426 nm within 60 minutes. It was found that
N/Co/cCh-S reached 100% of dye degradation after 30 minutes, while degradation in the presence of Co/cCh-S
was 77% for the same reaction time. The results of the catalytic tests were fitted by different kinetic models and
the first-order-kinetic model showed the best correlation. The first-order constant (k1) values for N/Co/cCh-S
and Co/cCh-S were 0.1286 min-1 and 0.0561 min-1, respectively. The results of this study confirmed that the
presence of NaHCO3 in the catalyst synthesis led to increased catalyst activity and accelerated tartrazine
degradation in the presence of Oxone®.
PB  - Bari, Italy : Digilabs
C3  - Scientific Research Abstracts - International Conference of European Clay Groups Association - EUROCLAY 2023, 24-27 July 2023, Bari, Italy
T1  - Cobalt-carbon-smectite catalysts in Oxone® induced oxidative degradation of tartrazine: The role of the NaHCO3 in the synthesis of the catalyst
VL  - 14
SP  - 279
EP  - 279
UR  - https://hdl.handle.net/21.15107/rcub_cer_6436
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Krstić, Jugoslav and Marinović, Sanja and Milutinović Nikolić, Aleksandra and Banković, Predrag and Ajduković, Marija",
year = "2023",
abstract = "Catalytic degradation of tartrazine in the presence of Oxone®

was investigated. Oxone was activated by
nanocomposite catalysts consisted of cobalt supported on smectite with chitosan-derived carbon loading. The
catalyst was synthetized using an impregnation-carbonization procedure and NaHCO3 was used as green
porogen. Smectite rich bentonite clay from Bogovina, Serbia was used as started material. After milling,
sieving and hydroseparation the fractions containing particles up to 2 μm in diameter were separated (denoted
as S). The intercalation of chitosan into the smectite was performed according to the previously described
procedure [1]. Obtained chitosan-smectite nanocomposite (Ch-S) was submitted to the wetness impregnation
method by Co2+ ions [1]. The impregnation was performed by slow addition of Co(NO3)2 solution to Ch-S
powder resulting in 0.03 g Co2+ per 1 g of Ch-S. After drying, the sample was mixed with NaHCO3 in a mass
ratio 1:3, placed in a tube furnace and carbonized in a stream of N2 at 500°C for 1 h. The potassium
peroxymonosulfate (Oxone®

, i.e. 2KHSO5∙KHSO4∙K2SO4) was used as a source of sulfate radicals generated by
cobalt from the catalysts. The catalytic activity of the N/Co/cCh-S was compared with catalyst Co/cCh-S
obtained by the same synthesis procedure without activation by NaHCO3. The degradation of tartrazine was
monitored using UV–Vis spectrophotometry at wavelength of 426 nm within 60 minutes. It was found that
N/Co/cCh-S reached 100% of dye degradation after 30 minutes, while degradation in the presence of Co/cCh-S
was 77% for the same reaction time. The results of the catalytic tests were fitted by different kinetic models and
the first-order-kinetic model showed the best correlation. The first-order constant (k1) values for N/Co/cCh-S
and Co/cCh-S were 0.1286 min-1 and 0.0561 min-1, respectively. The results of this study confirmed that the
presence of NaHCO3 in the catalyst synthesis led to increased catalyst activity and accelerated tartrazine
degradation in the presence of Oxone®.",
publisher = "Bari, Italy : Digilabs",
journal = "Scientific Research Abstracts - International Conference of European Clay Groups Association - EUROCLAY 2023, 24-27 July 2023, Bari, Italy",
title = "Cobalt-carbon-smectite catalysts in Oxone® induced oxidative degradation of tartrazine: The role of the NaHCO3 in the synthesis of the catalyst",
volume = "14",
pages = "279-279",
url = "https://hdl.handle.net/21.15107/rcub_cer_6436"
}

Stevanović, G., Jović-Jovičić, N., Krstić, J., Marinović, S., Milutinović Nikolić, A., Banković, P.,& Ajduković, M.. (2023). Cobalt-carbon-smectite catalysts in Oxone® induced oxidative degradation of tartrazine: The role of the NaHCO3 in the synthesis of the catalyst. in Scientific Research Abstracts - International Conference of European Clay Groups Association - EUROCLAY 2023, 24-27 July 2023, Bari, Italy
Bari, Italy : Digilabs., 14, 279-279.
https://hdl.handle.net/21.15107/rcub_cer_6436

Stevanović G, Jović-Jovičić N, Krstić J, Marinović S, Milutinović Nikolić A, Banković P, Ajduković M. Cobalt-carbon-smectite catalysts in Oxone® induced oxidative degradation of tartrazine: The role of the NaHCO3 in the synthesis of the catalyst. in Scientific Research Abstracts - International Conference of European Clay Groups Association - EUROCLAY 2023, 24-27 July 2023, Bari, Italy. 2023;14:279-279.
https://hdl.handle.net/21.15107/rcub_cer_6436 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Krstić, Jugoslav, Marinović, Sanja, Milutinović Nikolić, Aleksandra, Banković, Predrag, Ajduković, Marija, "Cobalt-carbon-smectite catalysts in Oxone® induced oxidative degradation of tartrazine: The role of the NaHCO3 in the synthesis of the catalyst" in Scientific Research Abstracts - International Conference of European Clay Groups Association - EUROCLAY 2023, 24-27 July 2023, Bari, Italy, 14 (2023):279-279,
https://hdl.handle.net/21.15107/rcub_cer_6436 .

TY  - CONF
AU  - Kosić, Višnja
AU  - Božić, Nataša
AU  - Dojnov, Biljana
AU  - Stevanović, Gordana
AU  - Banković, Predrag
AU  - Milutinović Nikolić, Aleksandra
AU  - Knežević-Jugović, Zorica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6846
AB  - Clays are naturally occurring, environmentally friendly, chemically inert, thermostable, inexpensive resources that are easily modified into materials with tailored properties. As such, they can be used as suitable supports for enzyme immobilization and application in the food industry. Natural polysaccharides starch, xylan, pullulan, and its derivatives obtained by the action of enzymes, have numerous potentials for food industrial applications. In this work the enzyme supports were prepared from bentonite from Coal mine "Bogovina", Serbia by acid activation (AA), pillaring (P), and pillaring followed by acid activation (PAA). The characterization of the obtained materials included chemical and phase composition, surface acidity, and textural properties. After characterization, -amylase from Bacillus paralicheniformis (BliAmy), commercial xylanase from Sigma-Aldrich (Xyl), and pullulanase from B. paralicheniformis (BliPull) were immobilized on bentonite based supports by 24 h adsorption at 25 °C. The obtained biocatalysts BliAmy-AA (106 IU/g), Xyl-P (74 IU/g), and BliPull-PAA (45 IU/g) showed very good storage stability with the activity preserved after 4 weeks of testing. Products of hydrolysis were detected by TLC and indicate a promising application in the food industry.
PB  - Belgrade : Serbian Chemical Society
C3  - Abstract Book - XXII Congress EuroFoodChem, June 14-16, 2023, Belgrade, Serbia, 2023, 210-210
T1  - Stable, environmentally friendly and inexpensive biocatalysts for obtaining important ingredients applicable in the food industry
SP  - 210
EP  - 210
UR  - https://hdl.handle.net/21.15107/rcub_cer_6846
ER  - 

@conference{
author = "Kosić, Višnja and Božić, Nataša and Dojnov, Biljana and Stevanović, Gordana and Banković, Predrag and Milutinović Nikolić, Aleksandra and Knežević-Jugović, Zorica",
year = "2023",
abstract = "Clays are naturally occurring, environmentally friendly, chemically inert, thermostable, inexpensive resources that are easily modified into materials with tailored properties. As such, they can be used as suitable supports for enzyme immobilization and application in the food industry. Natural polysaccharides starch, xylan, pullulan, and its derivatives obtained by the action of enzymes, have numerous potentials for food industrial applications. In this work the enzyme supports were prepared from bentonite from Coal mine "Bogovina", Serbia by acid activation (AA), pillaring (P), and pillaring followed by acid activation (PAA). The characterization of the obtained materials included chemical and phase composition, surface acidity, and textural properties. After characterization, -amylase from Bacillus paralicheniformis (BliAmy), commercial xylanase from Sigma-Aldrich (Xyl), and pullulanase from B. paralicheniformis (BliPull) were immobilized on bentonite based supports by 24 h adsorption at 25 °C. The obtained biocatalysts BliAmy-AA (106 IU/g), Xyl-P (74 IU/g), and BliPull-PAA (45 IU/g) showed very good storage stability with the activity preserved after 4 weeks of testing. Products of hydrolysis were detected by TLC and indicate a promising application in the food industry.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Abstract Book - XXII Congress EuroFoodChem, June 14-16, 2023, Belgrade, Serbia, 2023, 210-210",
title = "Stable, environmentally friendly and inexpensive biocatalysts for obtaining important ingredients applicable in the food industry",
pages = "210-210",
url = "https://hdl.handle.net/21.15107/rcub_cer_6846"
}

Kosić, V., Božić, N., Dojnov, B., Stevanović, G., Banković, P., Milutinović Nikolić, A.,& Knežević-Jugović, Z.. (2023). Stable, environmentally friendly and inexpensive biocatalysts for obtaining important ingredients applicable in the food industry. in Abstract Book - XXII Congress EuroFoodChem, June 14-16, 2023, Belgrade, Serbia, 2023, 210-210
Belgrade : Serbian Chemical Society., 210-210.
https://hdl.handle.net/21.15107/rcub_cer_6846

Kosić V, Božić N, Dojnov B, Stevanović G, Banković P, Milutinović Nikolić A, Knežević-Jugović Z. Stable, environmentally friendly and inexpensive biocatalysts for obtaining important ingredients applicable in the food industry. in Abstract Book - XXII Congress EuroFoodChem, June 14-16, 2023, Belgrade, Serbia, 2023, 210-210. 2023;:210-210.
https://hdl.handle.net/21.15107/rcub_cer_6846 .

Kosić, Višnja, Božić, Nataša, Dojnov, Biljana, Stevanović, Gordana, Banković, Predrag, Milutinović Nikolić, Aleksandra, Knežević-Jugović, Zorica, "Stable, environmentally friendly and inexpensive biocatalysts for obtaining important ingredients applicable in the food industry" in Abstract Book - XXII Congress EuroFoodChem, June 14-16, 2023, Belgrade, Serbia, 2023, 210-210 (2023):210-210,
https://hdl.handle.net/21.15107/rcub_cer_6846 .

TY  - CONF
AU  - Kosić, Višnja
AU  - Božić, Nataša
AU  - Dojnov, Biljana
AU  - Stevanović, Gordana
AU  - Milutinović Nikolić, Aleksandra
AU  - Knežević-Jugović, Zorica
AU  - Banković, Predrag
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6030
AB  - Some coal mines suffer from problem of having huge deposits of bentonite that they regard as undesirable, since bentonite can cause problem due to its swelling property. Instead of piling stacks of bentonite and regarding it as ecological problem the bentonite can be used as enzyme support by immobilization of enzymes as the challenging new application in the field of biotechnology. The enzyme catalysts in the industrial application present lower energy costs and are more environmentally friendly in comparison to traditional chemical processes. The advantages of enzymes are even more prominent when enzymes are applied in immobilized form. In this work the enzyme supports were prepared from bentonite from Coal mine "Bogovina", Serbia where bentonite, although valuable resource, is still considered to be tailings. Bentonite was modified by common methods: acid activation (AA), pillaring (P), and pillaring followed by acid activation (PAA) and tested as enzyme support. All the obtained materials were characterized by the X-ray powder diffraction and FTIR spectroscopy. The amylase, xylanase, and pullulanase were immobilized on different bentonite based supports by 24 h adsorption at 25 °C. The experimental results revealed that under the investigated conditions AA, P, and PAA, were the most suitable for amylase (106 IU/g), xylanase (74 IU/g), and pullulanase (45 IU/g) immobilization, respectively.
PB  - European Federation of Biotechnology
C3  - Programme and abstract book - Biotechnology for a circular bioeconomy: carbon capture, waste recycling and mitigation of global warming, 28-29 March 2023, online
T1  - The tailings from coal mine instead of waste became applicable as enzyme supports
SP  - 65
EP  - 65
UR  - https://hdl.handle.net/21.15107/rcub_cer_6030
ER  - 

@conference{
author = "Kosić, Višnja and Božić, Nataša and Dojnov, Biljana and Stevanović, Gordana and Milutinović Nikolić, Aleksandra and Knežević-Jugović, Zorica and Banković, Predrag",
year = "2023",
abstract = "Some coal mines suffer from problem of having huge deposits of bentonite that they regard as undesirable, since bentonite can cause problem due to its swelling property. Instead of piling stacks of bentonite and regarding it as ecological problem the bentonite can be used as enzyme support by immobilization of enzymes as the challenging new application in the field of biotechnology. The enzyme catalysts in the industrial application present lower energy costs and are more environmentally friendly in comparison to traditional chemical processes. The advantages of enzymes are even more prominent when enzymes are applied in immobilized form. In this work the enzyme supports were prepared from bentonite from Coal mine "Bogovina", Serbia where bentonite, although valuable resource, is still considered to be tailings. Bentonite was modified by common methods: acid activation (AA), pillaring (P), and pillaring followed by acid activation (PAA) and tested as enzyme support. All the obtained materials were characterized by the X-ray powder diffraction and FTIR spectroscopy. The amylase, xylanase, and pullulanase were immobilized on different bentonite based supports by 24 h adsorption at 25 °C. The experimental results revealed that under the investigated conditions AA, P, and PAA, were the most suitable for amylase (106 IU/g), xylanase (74 IU/g), and pullulanase (45 IU/g) immobilization, respectively.",
publisher = "European Federation of Biotechnology",
journal = "Programme and abstract book - Biotechnology for a circular bioeconomy: carbon capture, waste recycling and mitigation of global warming, 28-29 March 2023, online",
title = "The tailings from coal mine instead of waste became applicable as enzyme supports",
pages = "65-65",
url = "https://hdl.handle.net/21.15107/rcub_cer_6030"
}

Kosić, V., Božić, N., Dojnov, B., Stevanović, G., Milutinović Nikolić, A., Knežević-Jugović, Z.,& Banković, P.. (2023). The tailings from coal mine instead of waste became applicable as enzyme supports. in Programme and abstract book - Biotechnology for a circular bioeconomy: carbon capture, waste recycling and mitigation of global warming, 28-29 March 2023, online
European Federation of Biotechnology., 65-65.
https://hdl.handle.net/21.15107/rcub_cer_6030

Kosić V, Božić N, Dojnov B, Stevanović G, Milutinović Nikolić A, Knežević-Jugović Z, Banković P. The tailings from coal mine instead of waste became applicable as enzyme supports. in Programme and abstract book - Biotechnology for a circular bioeconomy: carbon capture, waste recycling and mitigation of global warming, 28-29 March 2023, online. 2023;:65-65.
https://hdl.handle.net/21.15107/rcub_cer_6030 .

Kosić, Višnja, Božić, Nataša, Dojnov, Biljana, Stevanović, Gordana, Milutinović Nikolić, Aleksandra, Knežević-Jugović, Zorica, Banković, Predrag, "The tailings from coal mine instead of waste became applicable as enzyme supports" in Programme and abstract book - Biotechnology for a circular bioeconomy: carbon capture, waste recycling and mitigation of global warming, 28-29 March 2023, online (2023):65-65,
https://hdl.handle.net/21.15107/rcub_cer_6030 .