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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - 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  - JOUR
AU  - Velić, Natalija
AU  - Stjepanović, Marija
AU  - Pavlović, Stefan
AU  - Bagherifam, Saeed
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6901
AB  - Since the synthetic dye Congo red and nitrate are notorious contributors to water pollution
due to their persistent and potentially toxic nature, it is necessary to develop new efficient methods to
remove them from water bodies. Native lignocellulosic materials as biosorbents are mostly inferior,
i.e., the adsorption capacities of native materials are lower. Therefore, attempts have been made to
improve the adsorption capacities of such materials by physical and/or chemical methods, including
the production of biochar. In this study, adsorptive removal was investigated using a novel biosorbent
(mPWS) obtained by modifying poplar (waste) sawdust through quaternisation. The characterisation
of mPWS included SEM/EDX, FTIR, and MIP analysis. The adsorption of CR and nitrate onto mPWS
was studied in a batch system, as a function of contact time (1–240 min), biosorbent concentration
(1–8 g/dm3), and initial adsorbate concentration (25–200 mg/dm3). In all experiments, a high
removal of both adsorbates, from 60 to over 90%, was achieved. Langmuir and Freundlich adsorption
isotherm models were used in order to describe equilibrium adsorption data, while pseudo-first-order
and pseudo-second-order kinetic models, and the intraparticle diffusion model, were used to describe
possible adsorption mechanisms. The Langmuir model fit the adsorption data of CR well, while the
nitrate adsorption process was better interpreted with the Freundlich isotherm model. The kinetics
data for both CR and nitrate agreed with the pseudo-second-order kinetics model, while analysis
using the intraparticle diffusion model indicated two rate-limiting steps during the adsorption
process. Based on the results, it can be concluded that the tested novel biosorbent can be effectively
used for the removal of CR and nitrate from water (with its adsorption capacities being 70.3 mg/g
and 43.6 mg/g, respectively).
PB  - MDPI
T2  - Water
T1  - Modified Lignocellulosic Waste for the Amelioration of Water Quality: Adsorptive Removal of Congo Red and Nitrate Using Modified Poplar Sawdust
VL  - 15
IS  - 21
SP  - 3776
DO  - 10.3390/w15213776
ER  - 

@article{
author = "Velić, Natalija and Stjepanović, Marija and Pavlović, Stefan and Bagherifam, Saeed and Banković, Predrag and Jović-Jovičić, Nataša",
year = "2023",
abstract = "Since the synthetic dye Congo red and nitrate are notorious contributors to water pollution
due to their persistent and potentially toxic nature, it is necessary to develop new efficient methods to
remove them from water bodies. Native lignocellulosic materials as biosorbents are mostly inferior,
i.e., the adsorption capacities of native materials are lower. Therefore, attempts have been made to
improve the adsorption capacities of such materials by physical and/or chemical methods, including
the production of biochar. In this study, adsorptive removal was investigated using a novel biosorbent
(mPWS) obtained by modifying poplar (waste) sawdust through quaternisation. The characterisation
of mPWS included SEM/EDX, FTIR, and MIP analysis. The adsorption of CR and nitrate onto mPWS
was studied in a batch system, as a function of contact time (1–240 min), biosorbent concentration
(1–8 g/dm3), and initial adsorbate concentration (25–200 mg/dm3). In all experiments, a high
removal of both adsorbates, from 60 to over 90%, was achieved. Langmuir and Freundlich adsorption
isotherm models were used in order to describe equilibrium adsorption data, while pseudo-first-order
and pseudo-second-order kinetic models, and the intraparticle diffusion model, were used to describe
possible adsorption mechanisms. The Langmuir model fit the adsorption data of CR well, while the
nitrate adsorption process was better interpreted with the Freundlich isotherm model. The kinetics
data for both CR and nitrate agreed with the pseudo-second-order kinetics model, while analysis
using the intraparticle diffusion model indicated two rate-limiting steps during the adsorption
process. Based on the results, it can be concluded that the tested novel biosorbent can be effectively
used for the removal of CR and nitrate from water (with its adsorption capacities being 70.3 mg/g
and 43.6 mg/g, respectively).",
publisher = "MDPI",
journal = "Water",
title = "Modified Lignocellulosic Waste for the Amelioration of Water Quality: Adsorptive Removal of Congo Red and Nitrate Using Modified Poplar Sawdust",
volume = "15",
number = "21",
pages = "3776",
doi = "10.3390/w15213776"
}

Velić, N., Stjepanović, M., Pavlović, S., Bagherifam, S., Banković, P.,& Jović-Jovičić, N.. (2023). Modified Lignocellulosic Waste for the Amelioration of Water Quality: Adsorptive Removal of Congo Red and Nitrate Using Modified Poplar Sawdust. in Water
MDPI., 15(21), 3776.
https://doi.org/10.3390/w15213776

Velić N, Stjepanović M, Pavlović S, Bagherifam S, Banković P, Jović-Jovičić N. Modified Lignocellulosic Waste for the Amelioration of Water Quality: Adsorptive Removal of Congo Red and Nitrate Using Modified Poplar Sawdust. in Water. 2023;15(21):3776.
doi:10.3390/w15213776 .

Velić, Natalija, Stjepanović, Marija, Pavlović, Stefan, Bagherifam, Saeed, Banković, Predrag, Jović-Jovičić, Nataša, "Modified Lignocellulosic Waste for the Amelioration of Water Quality: Adsorptive Removal of Congo Red and Nitrate Using Modified Poplar Sawdust" in Water, 15, no. 21 (2023):3776,
https://doi.org/10.3390/w15213776 . .

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  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Popović, Aleksandar
AU  - Dojčinović, Biljana
AU  - Milovanović, Biljana
AU  - Šalipur, Hristina
AU  - Ajduković, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6276
AB  - Catalytic degradation of Tartrazine in the presence of Oxone® activated by Co-supported chitosan derived carbon-montmorillonite as catalyst was investigated. The catalyst was synthetized using
impregnation-carbonization method. The carbonization temperature was 500 °C. The catalytic
experiments were performed at different temperatures in range from 25 °C to 40 °C in order to
determinate kinetics parameters. The kinetics data showed best fit with the first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia
T1  - Kinetic and thermodynamic study of the oxidative catalytic degradation of tartrazine in the presence of oxone® and cobalt supported chitosan-derived carbon-montmorillonite
VL  - I
SP  - 137
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_cer_6276
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Popović, Aleksandar and Dojčinović, Biljana and Milovanović, Biljana and Šalipur, Hristina and Ajduković, Marija",
year = "2022",
abstract = "Catalytic degradation of Tartrazine in the presence of Oxone® activated by Co-supported chitosan derived carbon-montmorillonite as catalyst was investigated. The catalyst was synthetized using
impregnation-carbonization method. The carbonization temperature was 500 °C. The catalytic
experiments were performed at different temperatures in range from 25 °C to 40 °C in order to
determinate kinetics parameters. The kinetics data showed best fit with the first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia",
title = "Kinetic and thermodynamic study of the oxidative catalytic degradation of tartrazine in the presence of oxone® and cobalt supported chitosan-derived carbon-montmorillonite",
volume = "I",
pages = "137-140",
url = "https://hdl.handle.net/21.15107/rcub_cer_6276"
}

Stevanović, G., Jović-Jovičić, N., Popović, A., Dojčinović, B., Milovanović, B., Šalipur, H.,& Ajduković, M.. (2022). Kinetic and thermodynamic study of the oxidative catalytic degradation of tartrazine in the presence of oxone® and cobalt supported chitosan-derived carbon-montmorillonite. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 137-140.
https://hdl.handle.net/21.15107/rcub_cer_6276

Stevanović G, Jović-Jovičić N, Popović A, Dojčinović B, Milovanović B, Šalipur H, Ajduković M. Kinetic and thermodynamic study of the oxidative catalytic degradation of tartrazine in the presence of oxone® and cobalt supported chitosan-derived carbon-montmorillonite. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia. 2022;I:137-140.
https://hdl.handle.net/21.15107/rcub_cer_6276 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Popović, Aleksandar, Dojčinović, Biljana, Milovanović, Biljana, Šalipur, Hristina, Ajduković, Marija, "Kinetic and thermodynamic study of the oxidative catalytic degradation of tartrazine in the presence of oxone® and cobalt supported chitosan-derived carbon-montmorillonite" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September 26-30, 2022, Belgrade, Serbia, I (2022):137-140,
https://hdl.handle.net/21.15107/rcub_cer_6276 .

TY  - CONF
AU  - Jović-Jovičić, Nataša
AU  - Ilić, Irena
AU  - Ajduković, Marija
AU  - Milutinović Nikolić, Aleksandra
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6685
AB  - Acid activated montmorillonite was impregnated with Co2+ ions, calcined at 450 , and used as 
catalyst for Oxone® activation in catalytic oxidative degradation of nicotine. Catalytic tests were 
performed in temperature range from 30 °C to 60 °C in order to obtain kinetic data. Kinetic study at 
different temperatures showed that catalytic degradation of nicotine corresponded to the first-order 
kinetic model. The activation energy of the investigated degradation process was determined by 
applying Arrhenius equation.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
T1  - Kinetic and thermodynamic study of nicotine degradation by oxone® activated by cobalt based catalyst
VL  - I
SP  - 149
EP  - 152
UR  - https://hdl.handle.net/21.15107/rcub_cer_6685
ER  - 

@conference{
author = "Jović-Jovičić, Nataša and Ilić, Irena and Ajduković, Marija and Milutinović Nikolić, Aleksandra",
year = "2022",
abstract = "Acid activated montmorillonite was impregnated with Co2+ ions, calcined at 450 , and used as 
catalyst for Oxone® activation in catalytic oxidative degradation of nicotine. Catalytic tests were 
performed in temperature range from 30 °C to 60 °C in order to obtain kinetic data. Kinetic study at 
different temperatures showed that catalytic degradation of nicotine corresponded to the first-order 
kinetic model. The activation energy of the investigated degradation process was determined by 
applying Arrhenius equation.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia",
title = "Kinetic and thermodynamic study of nicotine degradation by oxone® activated by cobalt based catalyst",
volume = "I",
pages = "149-152",
url = "https://hdl.handle.net/21.15107/rcub_cer_6685"
}

Jović-Jovičić, N., Ilić, I., Ajduković, M.,& Milutinović Nikolić, A.. (2022). Kinetic and thermodynamic study of nicotine degradation by oxone® activated by cobalt based catalyst. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 149-152.
https://hdl.handle.net/21.15107/rcub_cer_6685

Jović-Jovičić N, Ilić I, Ajduković M, Milutinović Nikolić A. Kinetic and thermodynamic study of nicotine degradation by oxone® activated by cobalt based catalyst. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia. 2022;I:149-152.
https://hdl.handle.net/21.15107/rcub_cer_6685 .

Jović-Jovičić, Nataša, Ilić, Irena, Ajduković, Marija, Milutinović Nikolić, Aleksandra, "Kinetic and thermodynamic study of nicotine degradation by oxone® activated by cobalt based catalyst" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia, I (2022):149-152,
https://hdl.handle.net/21.15107/rcub_cer_6685 .

TY  - JOUR
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Krstić, Jugoslav
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Popović, Aleksandar
AU  - Ajduković, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5437
AB  - Chitosan (Ch)-derived from biowaste along with smectite, an abundant clay mineral, were used in a low-cost and eco-friendly synthesis of a new type of catalyst. Nanocomposite catalysts constituted of Co supported on smectite with chitosan-derived carbon loading were obtained using an 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 temperature of 500 °C was found to be the most suitable for catalyst synthesis regarding catalytic performance in a peroxymonosulfate activated degradation of tartrazine. The incorporation of carbonized chitosan structure within the interlamellar space of the smectite was confirmed using X-ray powder diffraction. The high-resolution transmission electron microscopy confirmed a layered structure of nanocomposites characteristic for smectite, as well as the presence of small spherical cobalt containing nanoformations (confirmed by energy dispersive X-ray spectroscopy) well dispersed within structure. The existance of cobalt in the CoII and CoIII oxidation state was proven by X-ray photoelectron spectroscopy. The Co/cCh-S-500 catalyst was proven to be stable and efficient after 5 consecutive cycles. This work showed that nanocomposite Co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators exhibited a very promising performance in the degradation of water pollutants.
PB  - Elsevier
T2  - Applied  Clay Sciences
T1  - Nanocomposite co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators in degradation of tartrazine
VL  - 230
SP  - 106718
DO  - 10.1016/j.clay.2022.106718
ER  - 

@article{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Krstić, Jugoslav and Milutinović Nikolić, Aleksandra and Banković, Predrag and Popović, Aleksandar and Ajduković, Marija",
year = "2022",
abstract = "Chitosan (Ch)-derived from biowaste along with smectite, an abundant clay mineral, were used in a low-cost and eco-friendly synthesis of a new type of catalyst. Nanocomposite catalysts constituted of Co supported on smectite with chitosan-derived carbon loading were obtained using an 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 temperature of 500 °C was found to be the most suitable for catalyst synthesis regarding catalytic performance in a peroxymonosulfate activated degradation of tartrazine. The incorporation of carbonized chitosan structure within the interlamellar space of the smectite was confirmed using X-ray powder diffraction. The high-resolution transmission electron microscopy confirmed a layered structure of nanocomposites characteristic for smectite, as well as the presence of small spherical cobalt containing nanoformations (confirmed by energy dispersive X-ray spectroscopy) well dispersed within structure. The existance of cobalt in the CoII and CoIII oxidation state was proven by X-ray photoelectron spectroscopy. The Co/cCh-S-500 catalyst was proven to be stable and efficient after 5 consecutive cycles. This work showed that nanocomposite Co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators exhibited a very promising performance in the degradation of water pollutants.",
publisher = "Elsevier",
journal = "Applied  Clay Sciences",
title = "Nanocomposite co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators in degradation of tartrazine",
volume = "230",
pages = "106718",
doi = "10.1016/j.clay.2022.106718"
}

Stevanović, G., Jović-Jovičić, N., Krstić, J., Milutinović Nikolić, A., Banković, P., Popović, A.,& Ajduković, M.. (2022). Nanocomposite co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators in degradation of tartrazine. in Applied  Clay Sciences
Elsevier., 230, 106718.
https://doi.org/10.1016/j.clay.2022.106718

Stevanović G, Jović-Jovičić N, Krstić J, Milutinović Nikolić A, Banković P, Popović A, Ajduković M. Nanocomposite co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators in degradation of tartrazine. in Applied  Clay Sciences. 2022;230:106718.
doi:10.1016/j.clay.2022.106718 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Krstić, Jugoslav, Milutinović Nikolić, Aleksandra, Banković, Predrag, Popović, Aleksandar, Ajduković, Marija, "Nanocomposite co-catalysts, based on smectite and biowaste-derived carbon, as peroxymonosulfate activators in degradation of tartrazine" in Applied  Clay Sciences, 230 (2022):106718,
https://doi.org/10.1016/j.clay.2022.106718 . .

TY  - JOUR
AU  - Jović-Jovičić, Nataša
AU  - Bajuk Bogdanović, Danica
AU  - Novaković, Tatjana
AU  - Banković, Predrag
AU  - Milutinović Nikolić, Aleksandra
AU  - Mojović, Zorica
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5791
AB  - Organomodified bentonites were obtained by modification of bentonite clay from local mine Bogovina, with four different alkylammonium ions in the amounts that correspond to cation exchange capacity. Carbonized bentonites, obtained by pyrolyzing the organomodified bentonites in the flow of nitrogen, were characterized using XRD, low-temperature N2 physisorption and Raman spectroscopy. Structural and textural properties of carbonized bentonites depended on the arrangement of alkylammonium cations in the paternal organomodified bentonite, while the Raman spectroscopy confirmed the presence of amorphous carbon. The obtained carbonized bentonites were used for modification of the carbon paste electrode. The modified electrodes were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. The electrosorption of chloride and sulfate anions on carbonized bentonites was studied by chronocoulometry. The results were interpreted in the terms of surface groups and textural properties of the carbonized bentonites.
AB  - Органомодификовани бентонити су добијени модификацијом бентонита из локалног рудника Боговина са четири различита алкиламонијум јона у количини која је једнака његовом капацитету јонске измене. Карбонизовани бентонити, добијени пиролизом органомодификованих бентонита у струји азота, окарактерисани су помоћу дифракције Х-зрачења (XRD), нискотемпературском физисорпцијом азота и Раманском спектроскопијом. Структурна и текстурална својства карбонизованих бентонита зависe од уређења алкиламонијум катјона у одговарајућем полазном органомодификованом бентониту. Резултати карактеризације су показали да особине узорака зависе од распореда алкил- амонијум катјона у органомодификованом бентониту од ког су настали, док је Раманска спектроскопија потврдила присуство аморфног угљеника. Добијени карбонизовани бентонити су коришћени за модификацију електроде од пасте угљеника. Модификоване електроде су испитане помоћу цикличне волтаметрије и електрохемијске импедансне спектроскопије. Електросорпција хлорида и сулфата је проучавана помоћу хронокуло- нометрије. Резултати су протумачени на основу присутних површинских група и текстуралних својстава карбонизованих бентонита.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical properties of carbonized bentonite
T1  - Elektrohemijska svojstva karbonizovanih bentonita
VL  - 88
IS  - 1
SP  - 41
EP  - 54
DO  - 10.2298/JSC220127030J
ER  - 

@article{
author = "Jović-Jovičić, Nataša and Bajuk Bogdanović, Danica and Novaković, Tatjana and Banković, Predrag and Milutinović Nikolić, Aleksandra and Mojović, Zorica",
year = "2022",
abstract = "Organomodified bentonites were obtained by modification of bentonite clay from local mine Bogovina, with four different alkylammonium ions in the amounts that correspond to cation exchange capacity. Carbonized bentonites, obtained by pyrolyzing the organomodified bentonites in the flow of nitrogen, were characterized using XRD, low-temperature N2 physisorption and Raman spectroscopy. Structural and textural properties of carbonized bentonites depended on the arrangement of alkylammonium cations in the paternal organomodified bentonite, while the Raman spectroscopy confirmed the presence of amorphous carbon. The obtained carbonized bentonites were used for modification of the carbon paste electrode. The modified electrodes were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. The electrosorption of chloride and sulfate anions on carbonized bentonites was studied by chronocoulometry. The results were interpreted in the terms of surface groups and textural properties of the carbonized bentonites., Органомодификовани бентонити су добијени модификацијом бентонита из локалног рудника Боговина са четири различита алкиламонијум јона у количини која је једнака његовом капацитету јонске измене. Карбонизовани бентонити, добијени пиролизом органомодификованих бентонита у струји азота, окарактерисани су помоћу дифракције Х-зрачења (XRD), нискотемпературском физисорпцијом азота и Раманском спектроскопијом. Структурна и текстурална својства карбонизованих бентонита зависe од уређења алкиламонијум катјона у одговарајућем полазном органомодификованом бентониту. Резултати карактеризације су показали да особине узорака зависе од распореда алкил- амонијум катјона у органомодификованом бентониту од ког су настали, док је Раманска спектроскопија потврдила присуство аморфног угљеника. Добијени карбонизовани бентонити су коришћени за модификацију електроде од пасте угљеника. Модификоване електроде су испитане помоћу цикличне волтаметрије и електрохемијске импедансне спектроскопије. Електросорпција хлорида и сулфата је проучавана помоћу хронокуло- нометрије. Резултати су протумачени на основу присутних површинских група и текстуралних својстава карбонизованих бентонита.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical properties of carbonized bentonite, Elektrohemijska svojstva karbonizovanih bentonita",
volume = "88",
number = "1",
pages = "41-54",
doi = "10.2298/JSC220127030J"
}

Jović-Jovičić, N., Bajuk Bogdanović, D., Novaković, T., Banković, P., Milutinović Nikolić, A.,& Mojović, Z.. (2022). Electrochemical properties of carbonized bentonite. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 88(1), 41-54.
https://doi.org/10.2298/JSC220127030J

Jović-Jovičić N, Bajuk Bogdanović D, Novaković T, Banković P, Milutinović Nikolić A, Mojović Z. Electrochemical properties of carbonized bentonite. in Journal of the Serbian Chemical Society. 2022;88(1):41-54.
doi:10.2298/JSC220127030J .

Jović-Jovičić, Nataša, Bajuk Bogdanović, Danica, Novaković, Tatjana, Banković, Predrag, Milutinović Nikolić, Aleksandra, Mojović, Zorica, "Electrochemical properties of carbonized bentonite" in Journal of the Serbian Chemical Society, 88, no. 1 (2022):41-54,
https://doi.org/10.2298/JSC220127030J . .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6285
AB  - Cobalt-doped alumina catalyst was synthetized using the sol-gel method, gelled and calcined at 500 °C. The synthesized material was previously fully characterized. Cobalt-doped alumina was tested as catalysts in an Orange G degradation in the presence of Oxone®. Oxone® is a precursor of radicals and the role of the investigated catalyst was to activate its decomposition. Sulfate ion radicals act as oxidizing species in dye degradation reaction. The influence of the mass of the catalyst and the reaction temperature was investigated. The catalyst mass and temperature increase were beneficial for the dye degradation rate. The pseudo-first order kinetic model was found to be the most appropriate fit for experimentally obtained data. The adsorption of the dye on Co-doped alumina was also tested, and it was found to be negligible. The investigated catalyst was found to be effective for Orange G degradation in the presence of Oxone®.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
T1  - Catalytic properties of cobalt-doped alumina catalyst in oxone® activated degradation of orange G
VL  - I
SP  - 169
EP  - 172
UR  - https://hdl.handle.net/21.15107/rcub_cer_6285
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ajduković, Marija and Jović-Jovičić, Nataša and Banković, Predrag and Novaković, Tatjana",
year = "2022",
abstract = "Cobalt-doped alumina catalyst was synthetized using the sol-gel method, gelled and calcined at 500 °C. The synthesized material was previously fully characterized. Cobalt-doped alumina was tested as catalysts in an Orange G degradation in the presence of Oxone®. Oxone® is a precursor of radicals and the role of the investigated catalyst was to activate its decomposition. Sulfate ion radicals act as oxidizing species in dye degradation reaction. The influence of the mass of the catalyst and the reaction temperature was investigated. The catalyst mass and temperature increase were beneficial for the dye degradation rate. The pseudo-first order kinetic model was found to be the most appropriate fit for experimentally obtained data. The adsorption of the dye on Co-doped alumina was also tested, and it was found to be negligible. The investigated catalyst was found to be effective for Orange G degradation in the presence of Oxone®.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia",
title = "Catalytic properties of cobalt-doped alumina catalyst in oxone® activated degradation of orange G",
volume = "I",
pages = "169-172",
url = "https://hdl.handle.net/21.15107/rcub_cer_6285"
}

Marinović, S., Mudrinić, T., Ajduković, M., Jović-Jovičić, N., Banković, P.,& Novaković, T.. (2022). Catalytic properties of cobalt-doped alumina catalyst in oxone® activated degradation of orange G. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 169-172.
https://hdl.handle.net/21.15107/rcub_cer_6285

Marinović S, Mudrinić T, Ajduković M, Jović-Jovičić N, Banković P, Novaković T. Catalytic properties of cobalt-doped alumina catalyst in oxone® activated degradation of orange G. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia. 2022;I:169-172.
https://hdl.handle.net/21.15107/rcub_cer_6285 .

Marinović, Sanja, Mudrinić, Tihana, Ajduković, Marija, Jović-Jovičić, Nataša, Banković, Predrag, Novaković, Tatjana, "Catalytic properties of cobalt-doped alumina catalyst in oxone® activated degradation of orange G" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia, I (2022):169-172,
https://hdl.handle.net/21.15107/rcub_cer_6285 .

TY  - CONF
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Marinović, Sanja
AU  - Stevanović, Gordana
AU  - Mudrinić, Tihana
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6282
AB  - In this work smectite pillared with mixture of aluminium and cobalt poly(hydroxo metal)
cations (Al,Co-PILC) was synthesized and tested as catalyst in degradation of food dye
tartrazine by peroxymonosulfate. The Al,Co-PILC was obtained using a common procedure
consisting of the following steps: grinding, sieving, Na exchange, intercalation, drying and
calcination. Co2+ to (Al3++Co2+) molar ratios in the pillaring solution was 10%. Catalytic tests
were carried out in a semibatch reactor under stirring and constant temperature maintained by
circulation of thermostatic fluid using Julabo MC 4 heating circulator. Initial dye
concentration was 50 ppm in the presence of excess of peroxymonosulfate. Decolorization of
tartrazine solution was monitored using UV-Vis spectrophotometry at  max= 426 nm. The
influence of the mass of the catalyst and reaction temperature was investigated.
Catalyst mass and temperature increase were beneficial for dye degradation rate. The catalytic
process at 30 ºC reached 97% for 120 min and besides decolorization included further
degradation of products of tartrazine oxidation. At 50 ºC complete decolorization occurred for
only 30 min. This work showed that application of smectite pillared with mixture of aluminium and cobalt poly(hydroxo metal) cations as peroxymonosulfate activators for
degradation of water pollutants is very promising.
PB  - Serbian Ceramic Society
C3  - Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
T1  - The evaluation of mixed Al,Co pillared catalyst in degradation of tartrazine dye in presence of peroxymonosulfate
SP  - 95
EP  - 96
UR  - https://hdl.handle.net/21.15107/rcub_cer_6282
ER  - 

@conference{
author = "Ajduković, Marija and Jović-Jovičić, Nataša and Marinović, Sanja and Stevanović, Gordana and Mudrinić, Tihana and Milutinović Nikolić, Aleksandra and Banković, Predrag",
year = "2022",
abstract = "In this work smectite pillared with mixture of aluminium and cobalt poly(hydroxo metal)
cations (Al,Co-PILC) was synthesized and tested as catalyst in degradation of food dye
tartrazine by peroxymonosulfate. The Al,Co-PILC was obtained using a common procedure
consisting of the following steps: grinding, sieving, Na exchange, intercalation, drying and
calcination. Co2+ to (Al3++Co2+) molar ratios in the pillaring solution was 10%. Catalytic tests
were carried out in a semibatch reactor under stirring and constant temperature maintained by
circulation of thermostatic fluid using Julabo MC 4 heating circulator. Initial dye
concentration was 50 ppm in the presence of excess of peroxymonosulfate. Decolorization of
tartrazine solution was monitored using UV-Vis spectrophotometry at  max= 426 nm. The
influence of the mass of the catalyst and reaction temperature was investigated.
Catalyst mass and temperature increase were beneficial for dye degradation rate. The catalytic
process at 30 ºC reached 97% for 120 min and besides decolorization included further
degradation of products of tartrazine oxidation. At 50 ºC complete decolorization occurred for
only 30 min. This work showed that application of smectite pillared with mixture of aluminium and cobalt poly(hydroxo metal) cations as peroxymonosulfate activators for
degradation of water pollutants is very promising.",
publisher = "Serbian Ceramic Society",
journal = "Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia",
title = "The evaluation of mixed Al,Co pillared catalyst in degradation of tartrazine dye in presence of peroxymonosulfate",
pages = "95-96",
url = "https://hdl.handle.net/21.15107/rcub_cer_6282"
}

Ajduković, M., Jović-Jovičić, N., Marinović, S., Stevanović, G., Mudrinić, T., Milutinović Nikolić, A.,& Banković, P.. (2022). The evaluation of mixed Al,Co pillared catalyst in degradation of tartrazine dye in presence of peroxymonosulfate. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
Serbian Ceramic Society., 95-96.
https://hdl.handle.net/21.15107/rcub_cer_6282

Ajduković M, Jović-Jovičić N, Marinović S, Stevanović G, Mudrinić T, Milutinović Nikolić A, Banković P. The evaluation of mixed Al,Co pillared catalyst in degradation of tartrazine dye in presence of peroxymonosulfate. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia. 2022;:95-96.
https://hdl.handle.net/21.15107/rcub_cer_6282 .

Ajduković, Marija, Jović-Jovičić, Nataša, Marinović, Sanja, Stevanović, Gordana, Mudrinić, Tihana, Milutinović Nikolić, Aleksandra, Banković, Predrag, "The evaluation of mixed Al,Co pillared catalyst in degradation of tartrazine dye in presence of peroxymonosulfate" in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia (2022):95-96,
https://hdl.handle.net/21.15107/rcub_cer_6282 .

TY  - CONF
AU  - Marinović, Sanja
AU  - Jović-Jovičić, Nataša
AU  - Mudrinić, Tihana
AU  - Stevanović, Gordana
AU  - Milovanović, Biljana
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6280
AB  - Mixed Al, Fe pillared clay (AlFePILC) was synthesized from Na-exchanged Wyoming clay
(Na-Wy) rich in montmorillonite. In the pillaring process Na-Wy was modified with a mixed
intercalating (Al, Fe) solution with molar ratio of Fe3+/(Al3++Fe3+) = 10%. The obtained
AlFePILC was impregnated with cobalt using the incipient wetness impregnation method,
dried at 110 ºC and calcined at 450 ºC (Co-AlFePILC). Co-AlFePILC was tested as a catalyst
in catalytic oxidation of tartrazine in the presence of Oxone®. Decolorization was monitored
at wavelength  =426 nm, while degradation of aryl groups was followed at  =257 nm using
UV-Vis spectroscopy. The influence of the mass of the catalyst on degradation process was followed in the mass range from 10 mg to 50 mg at 30 °C. It was found that mass increase
was beneficial for the decolorization rate. The effect of temperature was investigated from 30
ºC to 60 ºC. The decolorization was over 90% after only 10 minutes for the temperature of 60
ºC, while with the temperature decrease, the decolorization rate decreased. Co-AlFePILC was
found to be an efficient catalyst in degradation of tartrazine in the presence of Oxone®.
PB  - Serbian Ceramic Society
C3  - Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
T1  - Cobalt impregnated mixed Al, Fe-pillared montmorillonite as a catalyst for decolorization of tartrazine in the reaction with Oxone®
SP  - 66
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_cer_6280
ER  - 

@conference{
author = "Marinović, Sanja and Jović-Jovičić, Nataša and Mudrinić, Tihana and Stevanović, Gordana and Milovanović, Biljana and Banković, Predrag and Ajduković, Marija",
year = "2022",
abstract = "Mixed Al, Fe pillared clay (AlFePILC) was synthesized from Na-exchanged Wyoming clay
(Na-Wy) rich in montmorillonite. In the pillaring process Na-Wy was modified with a mixed
intercalating (Al, Fe) solution with molar ratio of Fe3+/(Al3++Fe3+) = 10%. The obtained
AlFePILC was impregnated with cobalt using the incipient wetness impregnation method,
dried at 110 ºC and calcined at 450 ºC (Co-AlFePILC). Co-AlFePILC was tested as a catalyst
in catalytic oxidation of tartrazine in the presence of Oxone®. Decolorization was monitored
at wavelength  =426 nm, while degradation of aryl groups was followed at  =257 nm using
UV-Vis spectroscopy. The influence of the mass of the catalyst on degradation process was followed in the mass range from 10 mg to 50 mg at 30 °C. It was found that mass increase
was beneficial for the decolorization rate. The effect of temperature was investigated from 30
ºC to 60 ºC. The decolorization was over 90% after only 10 minutes for the temperature of 60
ºC, while with the temperature decrease, the decolorization rate decreased. Co-AlFePILC was
found to be an efficient catalyst in degradation of tartrazine in the presence of Oxone®.",
publisher = "Serbian Ceramic Society",
journal = "Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia",
title = "Cobalt impregnated mixed Al, Fe-pillared montmorillonite as a catalyst for decolorization of tartrazine in the reaction with Oxone®",
pages = "66-67",
url = "https://hdl.handle.net/21.15107/rcub_cer_6280"
}

Marinović, S., Jović-Jovičić, N., Mudrinić, T., Stevanović, G., Milovanović, B., Banković, P.,& Ajduković, M.. (2022). Cobalt impregnated mixed Al, Fe-pillared montmorillonite as a catalyst for decolorization of tartrazine in the reaction with Oxone®. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
Serbian Ceramic Society., 66-67.
https://hdl.handle.net/21.15107/rcub_cer_6280

Marinović S, Jović-Jovičić N, Mudrinić T, Stevanović G, Milovanović B, Banković P, Ajduković M. Cobalt impregnated mixed Al, Fe-pillared montmorillonite as a catalyst for decolorization of tartrazine in the reaction with Oxone®. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia. 2022;:66-67.
https://hdl.handle.net/21.15107/rcub_cer_6280 .

Marinović, Sanja, Jović-Jovičić, Nataša, Mudrinić, Tihana, Stevanović, Gordana, Milovanović, Biljana, Banković, Predrag, Ajduković, Marija, "Cobalt impregnated mixed Al, Fe-pillared montmorillonite as a catalyst for decolorization of tartrazine in the reaction with Oxone®" in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia (2022):66-67,
https://hdl.handle.net/21.15107/rcub_cer_6280 .

TY  - CONF
AU  - Ilić, Irena
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Ajduković, Marija
AU  - Marinović, Sanja
AU  - Jović-Jovičić, Nataša
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6279
AB  - Kinetic and thermodynamic parameters of nicotine adsorption onto acid-activated standard
Wyoming clay were investigated to obtain the optimum conditions for adsorption. The
nicotine adsorptions were performed in a batch system, using 0.75 mM solution of nicotine,
the mass of adsorbent of 25 mg at native pH=9.26, in temperature range from 25°C – 60 °C.
The pseudo-first (PFO) and pseudo-second kinetics (PSO) models in both linear and nonlinear
forms were apied for experimental data in the temperature range 25 °C – 60 °C. Error
analysis parameters such as correlation coefficient (R2) and  2 (chi-square) have been used to
determine the best kinetics interpretations of adsorption data. The analyzed parameters
suggested that nicotine adsorption can be best described by tested models in the following
order: non-linear PSO = linear PSO >non-linear PFO>linear PFO. The Weber-Morris intraparticle
diffusion model was applied in order to predict the rate-limiting step. The calculated
values for Cid were in the range 0.452 mmol g-1 to 0.484 mmol g-1, indicating effective role of
the boundary layer on the adsorption rate. Thermodynamic study revealed that nicotine
adsorption i\ \]  Q    K\  ¡G°=-18.93 kJ mol-1) physisorpton process with calculated value
of enthalpy change of 4.99 kJ mol-1 and activation energy of 21.95 kJ mol-1.
PB  - Serbian Ceramic Society
C3  - Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
T1  - Thermodynamic and kinetic study of nicotine adsorption on acid-modified smectite
SP  - 66
EP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_cer_6279
ER  - 

@conference{
author = "Ilić, Irena and Milutinović Nikolić, Aleksandra and Banković, Predrag and Ajduković, Marija and Marinović, Sanja and Jović-Jovičić, Nataša",
year = "2022",
abstract = "Kinetic and thermodynamic parameters of nicotine adsorption onto acid-activated standard
Wyoming clay were investigated to obtain the optimum conditions for adsorption. The
nicotine adsorptions were performed in a batch system, using 0.75 mM solution of nicotine,
the mass of adsorbent of 25 mg at native pH=9.26, in temperature range from 25°C – 60 °C.
The pseudo-first (PFO) and pseudo-second kinetics (PSO) models in both linear and nonlinear
forms were apied for experimental data in the temperature range 25 °C – 60 °C. Error
analysis parameters such as correlation coefficient (R2) and  2 (chi-square) have been used to
determine the best kinetics interpretations of adsorption data. The analyzed parameters
suggested that nicotine adsorption can be best described by tested models in the following
order: non-linear PSO = linear PSO >non-linear PFO>linear PFO. The Weber-Morris intraparticle
diffusion model was applied in order to predict the rate-limiting step. The calculated
values for Cid were in the range 0.452 mmol g-1 to 0.484 mmol g-1, indicating effective role of
the boundary layer on the adsorption rate. Thermodynamic study revealed that nicotine
adsorption i\ \]  Q    K\  ¡G°=-18.93 kJ mol-1) physisorpton process with calculated value
of enthalpy change of 4.99 kJ mol-1 and activation energy of 21.95 kJ mol-1.",
publisher = "Serbian Ceramic Society",
journal = "Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia",
title = "Thermodynamic and kinetic study of nicotine adsorption on acid-modified smectite",
pages = "66-66",
url = "https://hdl.handle.net/21.15107/rcub_cer_6279"
}

Ilić, I., Milutinović Nikolić, A., Banković, P., Ajduković, M., Marinović, S.,& Jović-Jovičić, N.. (2022). Thermodynamic and kinetic study of nicotine adsorption on acid-modified smectite. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia
Serbian Ceramic Society., 66-66.
https://hdl.handle.net/21.15107/rcub_cer_6279

Ilić I, Milutinović Nikolić A, Banković P, Ajduković M, Marinović S, Jović-Jovičić N. Thermodynamic and kinetic study of nicotine adsorption on acid-modified smectite. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia. 2022;:66-66.
https://hdl.handle.net/21.15107/rcub_cer_6279 .

Ilić, Irena, Milutinović Nikolić, Aleksandra, Banković, Predrag, Ajduković, Marija, Marinović, Sanja, Jović-Jovičić, Nataša, "Thermodynamic and kinetic study of nicotine adsorption on acid-modified smectite" in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia (2022):66-66,
https://hdl.handle.net/21.15107/rcub_cer_6279 .

TY  - JOUR
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Milovanović, Biljana
AU  - Jović-Jovičić, Nataša
AU  - Ajduković, Marija
AU  - Banković, Predrag
AU  - Milutinović Nikolić, Aleksandra
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5569
AB  - A series of aluminum pillared montmorillonite impregnated with different cobalt loadings (1–10) mass% were investigated as catalysts in oxidative degradation of organic water pollutant, model azo dye (tartrazine), in the presence of Oxone®. Oxone® has potassium monopersulfate as an active component which is a precursor of sulfate anion radicals. With the increase of cobalt loading up to 4 mass% the efficiency of catalysts increased. The catalytic tests revealed that the sample impregnated with 4 mass% of cobalt had the best catalytic activity within investigated series. The presence of a new cobalt-containing phase was identified in samples impregnated with 5 mass% and 10 mass% of cobalt. This finding indicated that although these samples had a higher content of catalytically active component i.e., cobalt, the presence of a new cobalt phase was less favorable for Oxone® activation and formation of sulfate anion radicals. The effect of the different cobalt loading on the reaction kinetics was investigated. The pseudo-first-order kinetic model was found to be the most appropriate to fit the experimental data for all investigated catalysts under defined experimental conditions. Both decolorization and degradation of aryl moieties had the highest pseudo-first-order rate constant for catalyst impregnated with 4 mass% of cobalt.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - The influence of cobalt loading in cobalt-supported aluminum pillared montmorillonite on the kinetic of Oxone® activated oxidative degradation of tartrazine
DO  - 10.1007/s11144-022-02338-z
ER  - 

@article{
author = "Marinović, Sanja and Mudrinić, Tihana and Milovanović, Biljana and Jović-Jovičić, Nataša and Ajduković, Marija and Banković, Predrag and Milutinović Nikolić, Aleksandra",
year = "2022",
abstract = "A series of aluminum pillared montmorillonite impregnated with different cobalt loadings (1–10) mass% were investigated as catalysts in oxidative degradation of organic water pollutant, model azo dye (tartrazine), in the presence of Oxone®. Oxone® has potassium monopersulfate as an active component which is a precursor of sulfate anion radicals. With the increase of cobalt loading up to 4 mass% the efficiency of catalysts increased. The catalytic tests revealed that the sample impregnated with 4 mass% of cobalt had the best catalytic activity within investigated series. The presence of a new cobalt-containing phase was identified in samples impregnated with 5 mass% and 10 mass% of cobalt. This finding indicated that although these samples had a higher content of catalytically active component i.e., cobalt, the presence of a new cobalt phase was less favorable for Oxone® activation and formation of sulfate anion radicals. The effect of the different cobalt loading on the reaction kinetics was investigated. The pseudo-first-order kinetic model was found to be the most appropriate to fit the experimental data for all investigated catalysts under defined experimental conditions. Both decolorization and degradation of aryl moieties had the highest pseudo-first-order rate constant for catalyst impregnated with 4 mass% of cobalt.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "The influence of cobalt loading in cobalt-supported aluminum pillared montmorillonite on the kinetic of Oxone® activated oxidative degradation of tartrazine",
doi = "10.1007/s11144-022-02338-z"
}

Marinović, S., Mudrinić, T., Milovanović, B., Jović-Jovičić, N., Ajduković, M., Banković, P.,& Milutinović Nikolić, A.. (2022). The influence of cobalt loading in cobalt-supported aluminum pillared montmorillonite on the kinetic of Oxone® activated oxidative degradation of tartrazine. in Reaction Kinetics, Mechanisms and Catalysis
Springer..
https://doi.org/10.1007/s11144-022-02338-z

Marinović S, Mudrinić T, Milovanović B, Jović-Jovičić N, Ajduković M, Banković P, Milutinović Nikolić A. The influence of cobalt loading in cobalt-supported aluminum pillared montmorillonite on the kinetic of Oxone® activated oxidative degradation of tartrazine. in Reaction Kinetics, Mechanisms and Catalysis. 2022;.
doi:10.1007/s11144-022-02338-z .

Marinović, Sanja, Mudrinić, Tihana, Milovanović, Biljana, Jović-Jovičić, Nataša, Ajduković, Marija, Banković, Predrag, Milutinović Nikolić, Aleksandra, "The influence of cobalt loading in cobalt-supported aluminum pillared montmorillonite on the kinetic of Oxone® activated oxidative degradation of tartrazine" in Reaction Kinetics, Mechanisms and Catalysis (2022),
https://doi.org/10.1007/s11144-022-02338-z . .

TY  - JOUR
AU  - Ajduković, Marija
AU  - Jović-Jovičić, Nataša
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Mojović, Zorica
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5516
AB  - Glina bogata monmorijonitom iz Vajominga je modifikovana kiselom aktivacijom i procesom pilarenja.
Ovako izmenjena glina, kao i polazna glina, je naneta na površinu elektrode od staklatog ugljenika 
pomoću Nafiona. Aktivnost ovih elektroda je ispitana na primeru redoks para hinon/hidrohinon (Q/QH2)
u puferovanom i nepuferovanm rastvoru. Način modifikacije glina je uticao na aktivnost elektroda i 
mehanizam redoks rekacije
AB  - Montmorillonite originated from Wyoming was modified by acid activation and aluminum pillaring process. The samples of clay obtained in this manner, as well as starting clay, were applied at the surface of a glassy carbon electrode by the means of Nafion. The activity of these electrodes was investigated on the redox couple quinone/hydroquinone (Q/QH2) in buffered and unbuffered solutions. The type of clay modification influenced the activity of the electrodes and the mechanism of the redox reaction.
PB  - Савез инжењера и техничара Србије
T2  - Tehnika
T1  - Uticaj modifikacije gline na elektrohemijsko ponašanje hinhidrona
T1  - The influence of clay modification on electrochemical behavior of quinhydrone
VL  - 77
IS  - 1
SP  - 9
EP  - 14
DO  - 10.5937/tehnika2201009A
ER  - 

@article{
author = "Ajduković, Marija and Jović-Jovičić, Nataša and Milutinović Nikolić, Aleksandra and Banković, Predrag and Mojović, Zorica",
year = "2022",
abstract = "Glina bogata monmorijonitom iz Vajominga je modifikovana kiselom aktivacijom i procesom pilarenja.
Ovako izmenjena glina, kao i polazna glina, je naneta na površinu elektrode od staklatog ugljenika 
pomoću Nafiona. Aktivnost ovih elektroda je ispitana na primeru redoks para hinon/hidrohinon (Q/QH2)
u puferovanom i nepuferovanm rastvoru. Način modifikacije glina je uticao na aktivnost elektroda i 
mehanizam redoks rekacije, Montmorillonite originated from Wyoming was modified by acid activation and aluminum pillaring process. The samples of clay obtained in this manner, as well as starting clay, were applied at the surface of a glassy carbon electrode by the means of Nafion. The activity of these electrodes was investigated on the redox couple quinone/hydroquinone (Q/QH2) in buffered and unbuffered solutions. The type of clay modification influenced the activity of the electrodes and the mechanism of the redox reaction.",
publisher = "Савез инжењера и техничара Србије",
journal = "Tehnika",
title = "Uticaj modifikacije gline na elektrohemijsko ponašanje hinhidrona, The influence of clay modification on electrochemical behavior of quinhydrone",
volume = "77",
number = "1",
pages = "9-14",
doi = "10.5937/tehnika2201009A"
}

Ajduković, M., Jović-Jovičić, N., Milutinović Nikolić, A., Banković, P.,& Mojović, Z.. (2022). Uticaj modifikacije gline na elektrohemijsko ponašanje hinhidrona. in Tehnika
Савез инжењера и техничара Србије., 77(1), 9-14.
https://doi.org/10.5937/tehnika2201009A

Ajduković M, Jović-Jovičić N, Milutinović Nikolić A, Banković P, Mojović Z. Uticaj modifikacije gline na elektrohemijsko ponašanje hinhidrona. in Tehnika. 2022;77(1):9-14.
doi:10.5937/tehnika2201009A .

Ajduković, Marija, Jović-Jovičić, Nataša, Milutinović Nikolić, Aleksandra, Banković, Predrag, Mojović, Zorica, "Uticaj modifikacije gline na elektrohemijsko ponašanje hinhidrona" in Tehnika, 77, no. 1 (2022):9-14,
https://doi.org/10.5937/tehnika2201009A . .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Pavlović, Stefan
AU  - Marinović, Sanja
AU  - Ajduković, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5306
AB  - Catalytic advanced oxidative degradation of organic pollutants in water is a promising technique for the purification of industrial effluents. Cobalt-based catalysts wa proven to be very efficient in peroxymonosulfate activation and generation of SO4•− radicals, species with high oxidative potential [1]. This work, for the first time, reports the hydrothermal procedure in the synthesis of cobalt-containing chitosan-derived carbon-smectite catalyst. The obtained catalyst was used for activation of Oxone® (potassium peroxymonosulfate). Activated Oxone® was applied in catalytic degradation of toxic textile dye - Orange G dye, that was used as a model of the water pollutant. Based on the presented results, the catalyst can be considered as an eco-friendly catalyst that was evaluated as highly efficient in the process of the oxidative degradation of selected organic dye, and potentially for a variety of water pollutants.
C3  - 2nd International Conference On Green Energy And Environmental Technology
T1  - Evaluation of hydrothermally synthesized green Co-carbon-smectite catalyst for oxidative degradation of dye in the presence of Oxone ®
SP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_cer_5306
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Milutinović Nikolić, Aleksandra and Banković, Predrag and Pavlović, Stefan and Marinović, Sanja and Ajduković, Marija",
year = "2022",
abstract = "Catalytic advanced oxidative degradation of organic pollutants in water is a promising technique for the purification of industrial effluents. Cobalt-based catalysts wa proven to be very efficient in peroxymonosulfate activation and generation of SO4•− radicals, species with high oxidative potential [1]. This work, for the first time, reports the hydrothermal procedure in the synthesis of cobalt-containing chitosan-derived carbon-smectite catalyst. The obtained catalyst was used for activation of Oxone® (potassium peroxymonosulfate). Activated Oxone® was applied in catalytic degradation of toxic textile dye - Orange G dye, that was used as a model of the water pollutant. Based on the presented results, the catalyst can be considered as an eco-friendly catalyst that was evaluated as highly efficient in the process of the oxidative degradation of selected organic dye, and potentially for a variety of water pollutants.",
journal = "2nd International Conference On Green Energy And Environmental Technology",
title = "Evaluation of hydrothermally synthesized green Co-carbon-smectite catalyst for oxidative degradation of dye in the presence of Oxone ®",
pages = "29",
url = "https://hdl.handle.net/21.15107/rcub_cer_5306"
}

Stevanović, G., Jović-Jovičić, N., Milutinović Nikolić, A., Banković, P., Pavlović, S., Marinović, S.,& Ajduković, M.. (2022). Evaluation of hydrothermally synthesized green Co-carbon-smectite catalyst for oxidative degradation of dye in the presence of Oxone ®. in 2nd International Conference On Green Energy And Environmental Technology, 29.
https://hdl.handle.net/21.15107/rcub_cer_5306

Stevanović G, Jović-Jovičić N, Milutinović Nikolić A, Banković P, Pavlović S, Marinović S, Ajduković M. Evaluation of hydrothermally synthesized green Co-carbon-smectite catalyst for oxidative degradation of dye in the presence of Oxone ®. in 2nd International Conference On Green Energy And Environmental Technology. 2022;:29.
https://hdl.handle.net/21.15107/rcub_cer_5306 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Milutinović Nikolić, Aleksandra, Banković, Predrag, Pavlović, Stefan, Marinović, Sanja, Ajduković, Marija, "Evaluation of hydrothermally synthesized green Co-carbon-smectite catalyst for oxidative degradation of dye in the presence of Oxone ®" in 2nd International Conference On Green Energy And Environmental Technology (2022):29,
https://hdl.handle.net/21.15107/rcub_cer_5306 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Dojčinović, Biljana
AU  - Milutinović Nikolić, Aleksandra
AU  - Marinović, Sanja
AU  - Banković, Predrag
AU  - Ajduković, Marija
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6358
AB  - Chemical degradation by activated Oxone® is one of the most attractive advanced oxidation
processes (AOPs) for the treatment of various pollutants including toxic azo dyes. However, the
development of an effective heterogeneous catalyst for activating Oxone® is still challenging. In this
work a novel cobalt supported carbon-smectite catalyst (Co/cC-S) was prepared through a two-step
synthesis. First, the incipient wetness impregnation method was used for the cobalt species to be
introduced into chitosan-smectite biocomposite. The impregnated sample was then carbonized in a
tube furnace at 400 °C in a nitrogen atmosphere for 1h. The obtained catalyst was characterized using
FTIR spectroscopy and low temperature N2 physisorption. The Co/cC-S catalyst was tested as
peroxymonosulfate (in the form of Oxone®) activator in the degradation of two textile dyes, Acid
orange 10 (AO10) and Basic Blue 41 (BB41), from their single component and two component
aqueous solution. As the first step in catalytic degradation of dyes, decolorization was monitored
using UV-Vis spectrophotometry (λmax=478 nm and 605 nm, for AO10 and BB41, respectively). The
results showed that Oxone® alone is ineffective in the degradation of both dyes. The combination of
Co/cC-S and Oxone® significantly improved their degradation. The investigated catalytic process at
30 °C in the single component dye solution was very fast for AO10 and somewhat slower for BB41.
The AO10 decolorization from the two-component solution was as fast as from the single component
solution. On the other hand, the degradation efficiency for BB41 substantially decreased when two
dyes co-existed. This result suggests that Co/cC-S activated Oxone® exhibited a relatively high
priority for attacking AO10. Co/cC-S showed to be a promising peroxymonosulfate activator in the
catalytic treatment of wastewaters containing textile azo dyes.
PB  - Materials Research Society of Serbia
C3  - Program and book of abstracts - 22nd Annual Conference on Material Science YUCOMAT 2021, August 30 - September 3 2021, Herceg Novi, Montenegro
T1  - Degradation of textile dyes by Oxone® activated by cobalt supported chitosan-derived carbon-smectite catalyst
SP  - 94
EP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_cer_6358
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Dojčinović, Biljana and Milutinović Nikolić, Aleksandra and Marinović, Sanja and Banković, Predrag and Ajduković, Marija",
year = "2021",
abstract = "Chemical degradation by activated Oxone® is one of the most attractive advanced oxidation
processes (AOPs) for the treatment of various pollutants including toxic azo dyes. However, the
development of an effective heterogeneous catalyst for activating Oxone® is still challenging. In this
work a novel cobalt supported carbon-smectite catalyst (Co/cC-S) was prepared through a two-step
synthesis. First, the incipient wetness impregnation method was used for the cobalt species to be
introduced into chitosan-smectite biocomposite. The impregnated sample was then carbonized in a
tube furnace at 400 °C in a nitrogen atmosphere for 1h. The obtained catalyst was characterized using
FTIR spectroscopy and low temperature N2 physisorption. The Co/cC-S catalyst was tested as
peroxymonosulfate (in the form of Oxone®) activator in the degradation of two textile dyes, Acid
orange 10 (AO10) and Basic Blue 41 (BB41), from their single component and two component
aqueous solution. As the first step in catalytic degradation of dyes, decolorization was monitored
using UV-Vis spectrophotometry (λmax=478 nm and 605 nm, for AO10 and BB41, respectively). The
results showed that Oxone® alone is ineffective in the degradation of both dyes. The combination of
Co/cC-S and Oxone® significantly improved their degradation. The investigated catalytic process at
30 °C in the single component dye solution was very fast for AO10 and somewhat slower for BB41.
The AO10 decolorization from the two-component solution was as fast as from the single component
solution. On the other hand, the degradation efficiency for BB41 substantially decreased when two
dyes co-existed. This result suggests that Co/cC-S activated Oxone® exhibited a relatively high
priority for attacking AO10. Co/cC-S showed to be a promising peroxymonosulfate activator in the
catalytic treatment of wastewaters containing textile azo dyes.",
publisher = "Materials Research Society of Serbia",
journal = "Program and book of abstracts - 22nd Annual Conference on Material Science YUCOMAT 2021, August 30 - September 3 2021, Herceg Novi, Montenegro",
title = "Degradation of textile dyes by Oxone® activated by cobalt supported chitosan-derived carbon-smectite catalyst",
pages = "94-94",
url = "https://hdl.handle.net/21.15107/rcub_cer_6358"
}

Stevanović, G., Jović-Jovičić, N., Dojčinović, B., Milutinović Nikolić, A., Marinović, S., Banković, P.,& Ajduković, M.. (2021). Degradation of textile dyes by Oxone® activated by cobalt supported chitosan-derived carbon-smectite catalyst. in Program and book of abstracts - 22nd Annual Conference on Material Science YUCOMAT 2021, August 30 - September 3 2021, Herceg Novi, Montenegro
Materials Research Society of Serbia., 94-94.
https://hdl.handle.net/21.15107/rcub_cer_6358

Stevanović G, Jović-Jovičić N, Dojčinović B, Milutinović Nikolić A, Marinović S, Banković P, Ajduković M. Degradation of textile dyes by Oxone® activated by cobalt supported chitosan-derived carbon-smectite catalyst. in Program and book of abstracts - 22nd Annual Conference on Material Science YUCOMAT 2021, August 30 - September 3 2021, Herceg Novi, Montenegro. 2021;:94-94.
https://hdl.handle.net/21.15107/rcub_cer_6358 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Dojčinović, Biljana, Milutinović Nikolić, Aleksandra, Marinović, Sanja, Banković, Predrag, Ajduković, Marija, "Degradation of textile dyes by Oxone® activated by cobalt supported chitosan-derived carbon-smectite catalyst" in Program and book of abstracts - 22nd Annual Conference on Material Science YUCOMAT 2021, August 30 - September 3 2021, Herceg Novi, Montenegro (2021):94-94,
https://hdl.handle.net/21.15107/rcub_cer_6358 .

TY  - CONF
AU  - Stevanović, Gordana
AU  - Jović-Jovičić, Nataša
AU  - Krstić, Jugoslav
AU  - Milutinović Nikolić, Aleksandra
AU  - Milovanović, Biljana
AU  - Radulović, Katarina
AU  - Ajduković, Marija
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6683
AB  - In this work cobalt supported on chitosan-derived carbon-smectite composite catalyst was synthetized using impregnation-carbonization method (Co/cCh-S). The carbonization temperature was 400 °C. The obtained catalyst was tested as peroxymonosulfate (in form of Oxone®) activator for the food dye tartrazine degradation. The textural properties were obtained using low temperature N2 physisorption. The calculated textural parameters of the Co/cCh-S catalyst were compared with properties of the carbonized chitosane-smectite composite (cCh-S). The catalytic tests confirmed that neither Oxone® without catalyst nor cCh-S were unable to activate Oxone®. The catalyst Co/cCh-S was found to be effective for tartrazine degradation in presence of Oxone®.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Cobalt supported chitosan-derived carbon-smectite composite for catalytic activation of peroxymonosulfate in water
VL  - I
SP  - 151
EP  - 154
UR  - https://hdl.handle.net/21.15107/rcub_cer_6683
ER  - 

@conference{
author = "Stevanović, Gordana and Jović-Jovičić, Nataša and Krstić, Jugoslav and Milutinović Nikolić, Aleksandra and Milovanović, Biljana and Radulović, Katarina and Ajduković, Marija",
year = "2021",
abstract = "In this work cobalt supported on chitosan-derived carbon-smectite composite catalyst was synthetized using impregnation-carbonization method (Co/cCh-S). The carbonization temperature was 400 °C. The obtained catalyst was tested as peroxymonosulfate (in form of Oxone®) activator for the food dye tartrazine degradation. The textural properties were obtained using low temperature N2 physisorption. The calculated textural parameters of the Co/cCh-S catalyst were compared with properties of the carbonized chitosane-smectite composite (cCh-S). The catalytic tests confirmed that neither Oxone® without catalyst nor cCh-S were unable to activate Oxone®. The catalyst Co/cCh-S was found to be effective for tartrazine degradation in presence of Oxone®.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Cobalt supported chitosan-derived carbon-smectite composite for catalytic activation of peroxymonosulfate in water",
volume = "I",
pages = "151-154",
url = "https://hdl.handle.net/21.15107/rcub_cer_6683"
}

Stevanović, G., Jović-Jovičić, N., Krstić, J., Milutinović Nikolić, A., Milovanović, B., Radulović, K.,& Ajduković, M.. (2021). Cobalt supported chitosan-derived carbon-smectite composite for catalytic activation of peroxymonosulfate in water. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 151-154.
https://hdl.handle.net/21.15107/rcub_cer_6683

Stevanović G, Jović-Jovičić N, Krstić J, Milutinović Nikolić A, Milovanović B, Radulović K, Ajduković M. Cobalt supported chitosan-derived carbon-smectite composite for catalytic activation of peroxymonosulfate in water. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:151-154.
https://hdl.handle.net/21.15107/rcub_cer_6683 .

Stevanović, Gordana, Jović-Jovičić, Nataša, Krstić, Jugoslav, Milutinović Nikolić, Aleksandra, Milovanović, Biljana, Radulović, Katarina, Ajduković, Marija, "Cobalt supported chitosan-derived carbon-smectite composite for catalytic activation of peroxymonosulfate in water" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):151-154,
https://hdl.handle.net/21.15107/rcub_cer_6683 .