TY  - JOUR
AU  - Milovanović, Željka
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Radovanović, Željko
AU  - Cvetković, Slobodan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6578
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7169
AB  - The sepiolite/ZrO2 composites were prepared by sepiolite (Sep) modification with zirconium propoxide in toluene at room temperature for 24 h (Sep–ZrI) or 95 °C for 4 h (sample Sep–ZrII). The efficiency of the obtained composites for the removal of phosphate from aqueous solutions at initial pH = 4 and pH = 8 was investigated. Characterization of the samples shows that synthesis at a higher temperature for a shorter time provides a slightly higher content of amorphous Zr phase, which is deposited on the sepiolite fibers as a thin layer and agglomerated nanoparticles. Compared to Sep, the composites have a lower point of zero charge and higher specific surface area and pore volume. The adsorption kinetics follow the pseudo second-order model. The adsorption capacities of the composites are approximately the same at both initial pH and higher at initial pH = 4 than at pH = 8. The XPS and ATR-FTIR of Sep–ZrI before and after adsorption identifies the formation of inner-sphere complexes as the mechanism of phosphate adsorption. The slow release during desorption with NaOH solution confirms the strong bonds of the phosphates with the surface of the composites.
PB  - MDPI
T2  - Water
T1  - The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism
VL  - 15
IS  - 13
SP  - 2376
DO  - 10.3390/w15132376
ER  - 

@article{
author = "Milovanović, Željka and Lazarević, Slavica and Janković-Častvan, Ivona and Radovanović, Željko and Cvetković, Slobodan and Janaćković, Đorđe and Petrović, Rada",
year = "2023",
abstract = "The sepiolite/ZrO2 composites were prepared by sepiolite (Sep) modification with zirconium propoxide in toluene at room temperature for 24 h (Sep–ZrI) or 95 °C for 4 h (sample Sep–ZrII). The efficiency of the obtained composites for the removal of phosphate from aqueous solutions at initial pH = 4 and pH = 8 was investigated. Characterization of the samples shows that synthesis at a higher temperature for a shorter time provides a slightly higher content of amorphous Zr phase, which is deposited on the sepiolite fibers as a thin layer and agglomerated nanoparticles. Compared to Sep, the composites have a lower point of zero charge and higher specific surface area and pore volume. The adsorption kinetics follow the pseudo second-order model. The adsorption capacities of the composites are approximately the same at both initial pH and higher at initial pH = 4 than at pH = 8. The XPS and ATR-FTIR of Sep–ZrI before and after adsorption identifies the formation of inner-sphere complexes as the mechanism of phosphate adsorption. The slow release during desorption with NaOH solution confirms the strong bonds of the phosphates with the surface of the composites.",
publisher = "MDPI",
journal = "Water",
title = "The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism",
volume = "15",
number = "13",
pages = "2376",
doi = "10.3390/w15132376"
}

Milovanović, Ž., Lazarević, S., Janković-Častvan, I., Radovanović, Ž., Cvetković, S., Janaćković, Đ.,& Petrović, R.. (2023). The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism. in Water
MDPI., 15(13), 2376.
https://doi.org/10.3390/w15132376

Milovanović Ž, Lazarević S, Janković-Častvan I, Radovanović Ž, Cvetković S, Janaćković Đ, Petrović R. The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism. in Water. 2023;15(13):2376.
doi:10.3390/w15132376 .

Milovanović, Željka, Lazarević, Slavica, Janković-Častvan, Ivona, Radovanović, Željko, Cvetković, Slobodan, Janaćković, Đorđe, Petrović, Rada, "The Removal of Phosphate from Aqueous Solutions by Sepiolite/ZrO2 Composites: Adsorption Behavior and Mechanism" in Water, 15, no. 13 (2023):2376,
https://doi.org/10.3390/w15132376 . .

TY  - JOUR
AU  - Petrović, Rada
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Matić, Tamara
AU  - Milivojević, Marija
AU  - Milošević, Dragana
AU  - Veljović, Đorđe
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5400
AB  - Kaolinite/illite (KUb) and sepiolite (SEP) clays were used to study Cr(III) adsorption removal from aqueous solutions so that they could be utilized after saturation for ceramic manufacturing. SEP had a larger specific surface area and a higher PZC than KUb. The removal of Cr(III) was evaluated using a batch equilibration procedure at pHi = 4 and pHi = 6. Fast removal kinetics were observed for both clays. Maximum removal capacity was determined by changing the concentration of Cr(III) while keeping the concentration of clay constant and by altering the amount of clay while keeping the concentration of Cr(III) constant. In all situations, SEP had greater capacity than KUb, and capacity was greater for both clays at higher pHi. Not only did the pHi impact the removal capacity and efficiency, but so did the pH during adsorption and the initial concentration of Cr(III). Because of the higher PZC, the pHf for SEP was higher for the same pHi. The higher the pH and Cr(III) concentration, the higher the probability of Cr(OH)3 precipitation and the higher the removal capacity. Dried saturated clays were uniaxially pressed and sintered at 1000 °C for 2 h. The densities of the sintered materials were nearly identical to those of pure clay-based materials, but the compressive strengths were higher, which is significant for the use of saturated clays as raw materials in ceramic manufacturing. Leaching of Cr from SEP-based material was significantly higher than from KUb-based material probably due to the presence of CaCO3 in the SEP.
PB  - Elsevier
T2  - Applied  Clay Sciences
T1  - Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing
VL  - 231
SP  - 106747
DO  - 10.1016/j.clay.2022.106747
ER  - 

@article{
author = "Petrović, Rada and Lazarević, Slavica and Janković-Častvan, Ivona and Matić, Tamara and Milivojević, Marija and Milošević, Dragana and Veljović, Đorđe",
year = "2023",
abstract = "Kaolinite/illite (KUb) and sepiolite (SEP) clays were used to study Cr(III) adsorption removal from aqueous solutions so that they could be utilized after saturation for ceramic manufacturing. SEP had a larger specific surface area and a higher PZC than KUb. The removal of Cr(III) was evaluated using a batch equilibration procedure at pHi = 4 and pHi = 6. Fast removal kinetics were observed for both clays. Maximum removal capacity was determined by changing the concentration of Cr(III) while keeping the concentration of clay constant and by altering the amount of clay while keeping the concentration of Cr(III) constant. In all situations, SEP had greater capacity than KUb, and capacity was greater for both clays at higher pHi. Not only did the pHi impact the removal capacity and efficiency, but so did the pH during adsorption and the initial concentration of Cr(III). Because of the higher PZC, the pHf for SEP was higher for the same pHi. The higher the pH and Cr(III) concentration, the higher the probability of Cr(OH)3 precipitation and the higher the removal capacity. Dried saturated clays were uniaxially pressed and sintered at 1000 °C for 2 h. The densities of the sintered materials were nearly identical to those of pure clay-based materials, but the compressive strengths were higher, which is significant for the use of saturated clays as raw materials in ceramic manufacturing. Leaching of Cr from SEP-based material was significantly higher than from KUb-based material probably due to the presence of CaCO3 in the SEP.",
publisher = "Elsevier",
journal = "Applied  Clay Sciences",
title = "Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing",
volume = "231",
pages = "106747",
doi = "10.1016/j.clay.2022.106747"
}

Petrović, R., Lazarević, S., Janković-Častvan, I., Matić, T., Milivojević, M., Milošević, D.,& Veljović, Đ.. (2023). Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing. in Applied  Clay Sciences
Elsevier., 231, 106747.
https://doi.org/10.1016/j.clay.2022.106747

Petrović R, Lazarević S, Janković-Častvan I, Matić T, Milivojević M, Milošević D, Veljović Đ. Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing. in Applied  Clay Sciences. 2023;231:106747.
doi:10.1016/j.clay.2022.106747 .

Petrović, Rada, Lazarević, Slavica, Janković-Častvan, Ivona, Matić, Tamara, Milivojević, Marija, Milošević, Dragana, Veljović, Đorđe, "Removal of trivalent chromium from aqueous solutions by natural clays: Valorization of saturated adsorbents as raw materials in ceramic manufacturing" in Applied  Clay Sciences, 231 (2023):106747,
https://doi.org/10.1016/j.clay.2022.106747 . .

TY  - JOUR
AU  - Ugrinović, Vukašin
AU  - Panić, Vesna
AU  - Spasojević, Pavle
AU  - Šešlija, Sanja
AU  - Božić, Bojan
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Veljović, Đorđe
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5243
AB  - Hydrogels are promising materials for biomedical applications due to highly hydrated, porous, permeable structure with possibility to accommodate living cells, drugs, or bioactive factors. In this paper, we reported poly(methacrylic acid) (PMAA)/gelatin IPN hydrogels, synthesized by free-radical polymerization, with adjustable mechanical, structural, physicochemical, and biological characteristics. The influence of methacrylic acid (MAA), gelatin, and cross-linker in the precursor solution on hydrogels properties was investigated. The increasing concentration of MAA, gelatin, and cross-linker led to better mechanical properties, lower porosity, and water content. The compressive mechanical properties of hydrogels were significantly better in comparison to a single-network PMAA hydrogel, while the obtained compressive strength values up to 16 MPa were comparable with tough hydrogels. The increasing concentration of MAA and cross-linker reduced fatigue resistance and degradability, while the increase in gelatin content acted in the opposite way. Swelling tests in different pH conditions demonstrated strong pH-sensibility of the hydrogels, which was more pronounced as MAA concentration was higher, and gelatin and cross-linker concentrations were lower. In addition, the hydrogels strongly promoted the proliferation of human periodontal ligament stem cells and MRC-5 cells as assayed by MTT assay.
PB  - Wiley
T2  - Polymer Engineering and Science
T1  - Strong and tough, pH sensible, interpenetrating network hydrogels based on gelatin and poly(methacrylic acid)
VL  - 62
SP  - 622
EP  - 636
DO  - 10.1002/pen.25870
ER  - 

@article{
author = "Ugrinović, Vukašin and Panić, Vesna and Spasojević, Pavle and Šešlija, Sanja and Božić, Bojan and Petrović, Rada and Janaćković, Đorđe and Veljović, Đorđe",
year = "2022",
abstract = "Hydrogels are promising materials for biomedical applications due to highly hydrated, porous, permeable structure with possibility to accommodate living cells, drugs, or bioactive factors. In this paper, we reported poly(methacrylic acid) (PMAA)/gelatin IPN hydrogels, synthesized by free-radical polymerization, with adjustable mechanical, structural, physicochemical, and biological characteristics. The influence of methacrylic acid (MAA), gelatin, and cross-linker in the precursor solution on hydrogels properties was investigated. The increasing concentration of MAA, gelatin, and cross-linker led to better mechanical properties, lower porosity, and water content. The compressive mechanical properties of hydrogels were significantly better in comparison to a single-network PMAA hydrogel, while the obtained compressive strength values up to 16 MPa were comparable with tough hydrogels. The increasing concentration of MAA and cross-linker reduced fatigue resistance and degradability, while the increase in gelatin content acted in the opposite way. Swelling tests in different pH conditions demonstrated strong pH-sensibility of the hydrogels, which was more pronounced as MAA concentration was higher, and gelatin and cross-linker concentrations were lower. In addition, the hydrogels strongly promoted the proliferation of human periodontal ligament stem cells and MRC-5 cells as assayed by MTT assay.",
publisher = "Wiley",
journal = "Polymer Engineering and Science",
title = "Strong and tough, pH sensible, interpenetrating network hydrogels based on gelatin and poly(methacrylic acid)",
volume = "62",
pages = "622-636",
doi = "10.1002/pen.25870"
}

Ugrinović, V., Panić, V., Spasojević, P., Šešlija, S., Božić, B., Petrović, R., Janaćković, Đ.,& Veljović, Đ.. (2022). Strong and tough, pH sensible, interpenetrating network hydrogels based on gelatin and poly(methacrylic acid). in Polymer Engineering and Science
Wiley., 62, 622-636.
https://doi.org/10.1002/pen.25870

Ugrinović V, Panić V, Spasojević P, Šešlija S, Božić B, Petrović R, Janaćković Đ, Veljović Đ. Strong and tough, pH sensible, interpenetrating network hydrogels based on gelatin and poly(methacrylic acid). in Polymer Engineering and Science. 2022;62:622-636.
doi:10.1002/pen.25870 .

Ugrinović, Vukašin, Panić, Vesna, Spasojević, Pavle, Šešlija, Sanja, Božić, Bojan, Petrović, Rada, Janaćković, Đorđe, Veljović, Đorđe, "Strong and tough, pH sensible, interpenetrating network hydrogels based on gelatin and poly(methacrylic acid)" in Polymer Engineering and Science, 62 (2022):622-636,
https://doi.org/10.1002/pen.25870 . .

TY  - CONF
AU  - Milovanović, Biljana
AU  - Petrović, Rada
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6360
AB  - Aluminum pillared montmorillonite-supported cobalt (Co/AP) has proven to be a suitable non-enzymatic
sensing material (Mudrinić, 2019). Beside low cost, Co/AP exhibited adequate electrocatalytic performance
toward glucose. However, further improvements of electrocatalytic performances are needed, especially
regarding increasing sensitivity and widening the linear range of glucose detection.
In this regard, in addition to the monometallic cobalt oxide catalyst, a series of bimetallic catalysts
supported on AP (Co+Cu/AP, Co+Zn/AP, Co+Fe/AP, and Co+Ni/AP) have been synthesized by the
incipient wetness impregnation method (Pinna, 1998). The total amount of supported metal was fixed at 4
mass%, while cobalt:dopant molar ratio was 9:1 for all samples. The synthesized materials were prepared
in the form of carbon paste electrode (Co+dopant/AP-CPE) with the same mass ratio of Co+dopant/AP to
carbon black (CB) and applied as a working electrode.
All the electrochemical measurements of each Co+dopant/AP-CPE were conducted using an Autolab
PGSTAT302N potentiostat with Nova 2.1 software. The experiments were carried out in a three-electrode
cell with prepared electrodes as working, Ag/AgCl (3 M KCl) as a reference electrode, and platinum rod
as a counter electrode. Electrochemical behavior of the working electrodes for glucose detection was
studied by the cyclic voltammetry and chronoamperometry in alkaline solution, with and without glucose.
Among investigated electrodes for glucose electrooxidation, the Co+Fe/AP-CPE exhibited the highest
current response with the best sensitivity. These very first results indicated a vital role of Fe in enhancing
the glucose-sensing performance of aluminum pillared montmorillonite-supported cobalt. The physical
chemical characterization of all Co+dopant/AP materials is ongoing.
PB  - The clay mineral society
C3  - Scientific research abstracts - AIPEA - 17th International Clay Conference (ICC 2022), 25-29 July, Istanbul, Turkey
T1  - Electrocatalytic behavior of pillared montmorillonite-supported cobalt oxide doped with Cu, Zn, Fe, and Ni for glucose sensing
SP  - 330
EP  - 330
UR  - https://hdl.handle.net/21.15107/rcub_cer_6360
ER  - 

@conference{
author = "Milovanović, Biljana and Petrović, Rada and Marinović, Sanja and Milutinović Nikolić, Aleksandra and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "Aluminum pillared montmorillonite-supported cobalt (Co/AP) has proven to be a suitable non-enzymatic
sensing material (Mudrinić, 2019). Beside low cost, Co/AP exhibited adequate electrocatalytic performance
toward glucose. However, further improvements of electrocatalytic performances are needed, especially
regarding increasing sensitivity and widening the linear range of glucose detection.
In this regard, in addition to the monometallic cobalt oxide catalyst, a series of bimetallic catalysts
supported on AP (Co+Cu/AP, Co+Zn/AP, Co+Fe/AP, and Co+Ni/AP) have been synthesized by the
incipient wetness impregnation method (Pinna, 1998). The total amount of supported metal was fixed at 4
mass%, while cobalt:dopant molar ratio was 9:1 for all samples. The synthesized materials were prepared
in the form of carbon paste electrode (Co+dopant/AP-CPE) with the same mass ratio of Co+dopant/AP to
carbon black (CB) and applied as a working electrode.
All the electrochemical measurements of each Co+dopant/AP-CPE were conducted using an Autolab
PGSTAT302N potentiostat with Nova 2.1 software. The experiments were carried out in a three-electrode
cell with prepared electrodes as working, Ag/AgCl (3 M KCl) as a reference electrode, and platinum rod
as a counter electrode. Electrochemical behavior of the working electrodes for glucose detection was
studied by the cyclic voltammetry and chronoamperometry in alkaline solution, with and without glucose.
Among investigated electrodes for glucose electrooxidation, the Co+Fe/AP-CPE exhibited the highest
current response with the best sensitivity. These very first results indicated a vital role of Fe in enhancing
the glucose-sensing performance of aluminum pillared montmorillonite-supported cobalt. The physical
chemical characterization of all Co+dopant/AP materials is ongoing.",
publisher = "The clay mineral society",
journal = "Scientific research abstracts - AIPEA - 17th International Clay Conference (ICC 2022), 25-29 July, Istanbul, Turkey",
title = "Electrocatalytic behavior of pillared montmorillonite-supported cobalt oxide doped with Cu, Zn, Fe, and Ni for glucose sensing",
pages = "330-330",
url = "https://hdl.handle.net/21.15107/rcub_cer_6360"
}

Milovanović, B., Petrović, R., Marinović, S., Milutinović Nikolić, A., Banković, P.,& Mudrinić, T.. (2022). Electrocatalytic behavior of pillared montmorillonite-supported cobalt oxide doped with Cu, Zn, Fe, and Ni for glucose sensing. in Scientific research abstracts - AIPEA - 17th International Clay Conference (ICC 2022), 25-29 July, Istanbul, Turkey
The clay mineral society., 330-330.
https://hdl.handle.net/21.15107/rcub_cer_6360

Milovanović B, Petrović R, Marinović S, Milutinović Nikolić A, Banković P, Mudrinić T. Electrocatalytic behavior of pillared montmorillonite-supported cobalt oxide doped with Cu, Zn, Fe, and Ni for glucose sensing. in Scientific research abstracts - AIPEA - 17th International Clay Conference (ICC 2022), 25-29 July, Istanbul, Turkey. 2022;:330-330.
https://hdl.handle.net/21.15107/rcub_cer_6360 .

Milovanović, Biljana, Petrović, Rada, Marinović, Sanja, Milutinović Nikolić, Aleksandra, Banković, Predrag, Mudrinić, Tihana, "Electrocatalytic behavior of pillared montmorillonite-supported cobalt oxide doped with Cu, Zn, Fe, and Ni for glucose sensing" in Scientific research abstracts - AIPEA - 17th International Clay Conference (ICC 2022), 25-29 July, Istanbul, Turkey (2022):330-330,
https://hdl.handle.net/21.15107/rcub_cer_6360 .

TY  - CONF
AU  - Milovanović, Biljana
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Petrović, Rada
AU  - Stevanović, Gordana
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6281
AB  - Our previous study demonstrated that cobalt content strongly affected the electro-activity of
aluminum pillared clay-supported cobalt (CoAP) toward glucose oxidation. It was found that
the electro-activity of CoAP increased with the increase of cobalt loading. However, at the 10
wt.% of cobalt content, the electro-activity significantly decreased. In the present study, the
focus is on the investigation of the nature of the surface sites that might cause the difference
in the electro-activity of CoAP. For this purpose, CoAP with 3 wt.% and 10 wt.% cobalt
contents (x%CoAP, x=3 and 10) were characterized using FE-SEM and HR-TEM with EDX
techniques, and XPS. The microscopic techniques coupled with EDX have shown that cobalt
oxide nanoparticles were evenly distributed in both samples. However, the higher cobalt
loading resulted in cobalt oxide agglomeration that led to larger particle sizes. The results of
XPS confirmed the presence of Co (II) in the 3%CoAP. On the other hand, the presence of
Co3O4 which contains both Co (II) and Co (III) was confirmed in 10%CoAP. It is clear from
this study that the electro-activity of CoAP strongly depends on the oxidation state of cobalt.
However, the effect of agglomeration and cobalt oxide particle sizes cannot be ruled out.
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  - Surface characterization of aluminum pillared clay-supported cobalt
SP  - 68
EP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_cer_6281
ER  - 

@conference{
author = "Milovanović, Biljana and Marinović, Sanja and Milutinović Nikolić, Aleksandra and Petrović, Rada and Stevanović, Gordana and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "Our previous study demonstrated that cobalt content strongly affected the electro-activity of
aluminum pillared clay-supported cobalt (CoAP) toward glucose oxidation. It was found that
the electro-activity of CoAP increased with the increase of cobalt loading. However, at the 10
wt.% of cobalt content, the electro-activity significantly decreased. In the present study, the
focus is on the investigation of the nature of the surface sites that might cause the difference
in the electro-activity of CoAP. For this purpose, CoAP with 3 wt.% and 10 wt.% cobalt
contents (x%CoAP, x=3 and 10) were characterized using FE-SEM and HR-TEM with EDX
techniques, and XPS. The microscopic techniques coupled with EDX have shown that cobalt
oxide nanoparticles were evenly distributed in both samples. However, the higher cobalt
loading resulted in cobalt oxide agglomeration that led to larger particle sizes. The results of
XPS confirmed the presence of Co (II) in the 3%CoAP. On the other hand, the presence of
Co3O4 which contains both Co (II) and Co (III) was confirmed in 10%CoAP. It is clear from
this study that the electro-activity of CoAP strongly depends on the oxidation state of cobalt.
However, the effect of agglomeration and cobalt oxide particle sizes cannot be ruled out.",
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 = "Surface characterization of aluminum pillared clay-supported cobalt",
pages = "68-68",
url = "https://hdl.handle.net/21.15107/rcub_cer_6281"
}

Milovanović, B., Marinović, S., Milutinović Nikolić, A., Petrović, R., Stevanović, G., Banković, P.,& Mudrinić, T.. (2022). Surface characterization of aluminum pillared clay-supported cobalt. 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., 68-68.
https://hdl.handle.net/21.15107/rcub_cer_6281

Milovanović B, Marinović S, Milutinović Nikolić A, Petrović R, Stevanović G, Banković P, Mudrinić T. Surface characterization of aluminum pillared clay-supported cobalt. in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia. 2022;:68-68.
https://hdl.handle.net/21.15107/rcub_cer_6281 .

Milovanović, Biljana, Marinović, Sanja, Milutinović Nikolić, Aleksandra, Petrović, Rada, Stevanović, Gordana, Banković, Predrag, Mudrinić, Tihana, "Surface characterization of aluminum pillared clay-supported cobalt" in Program and the book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application X, 26-27th September 2022, Belgrade, Serbia (2022):68-68,
https://hdl.handle.net/21.15107/rcub_cer_6281 .

TY  - JOUR
AU  - Milovanović, Biljana
AU  - Marinović, Sanja
AU  - Vuković, Zorica
AU  - Milutinović Nikolić, Aleksandra
AU  - Petrović, Rada
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5246
AB  - In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt
VL  - 915
SP  - 116332
DO  - 10.1016/j.jelechem.2022.116332
ER  - 

@article{
author = "Milovanović, Biljana and Marinović, Sanja and Vuković, Zorica and Milutinović Nikolić, Aleksandra and Petrović, Rada and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "In this paper, the influence of cobalt loading in pillared clay-supported cobalt materials on their electrocatalytic performance toward glucose oxidation was investigated. A series of aluminum-pillared montmorillonite clay (AP) materials with different cobalt loadings (x%CoAP, x = 1, 3, 5, and 10 wt%) was synthesized using the incipient wetness impregnation method. The X-ray powder diffraction (XRPD), inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy coupled with energy dispersive X-ray spectrometry (FE-SEM/EDX), high resolution transmission electron microscopy (HR-TEM) coupled with EDX, X-ray photoelectron spectroscopy (XPS), and low temperature N2 physisorption, were employed for characterization of the materials. The incorporation of cobalt in porous structure of pillared montmorillonite was confirmed. The synthesized materials (x%CoAP) were used for modification of carbon paste (CP) electrode and tested in reaction of glucose electrooxidation. The electrochemical measurements were conducted using cyclic voltammetry and chronoamperometry in a 1 M NaOH solution, with or without glucose. The results showed that the increase of cobalt loading improved the electrode performance toward glucose. The highest current response and sensitivity were obtained for the CP-5%CoAP electrode. A lower electrode performance of CP-10%CoAP was correlated with the presence of higher quantities of Co3O4 (confirmed by XRPD and XPS) in the electrode material. The mechanism and kinetics of glucose electrooxidation was studied in more details for the best performing electrode (CP-5%CoAP). It was found that the process was diffusion-controlled and the diffusion coefficient was determined. The charge transfer coefficient and catalytic rate constant were calculated. The electrode exhibited satisfactory repeatability, reproducibility, stability, and selectivity. The obtained results showed that appropriate amount of cobalt loading in pillared clay led to the obtainment of non-enzymatic electrode materials suitable for sustainable and green glucose sensors.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt",
volume = "915",
pages = "116332",
doi = "10.1016/j.jelechem.2022.116332"
}

Milovanović, B., Marinović, S., Vuković, Z., Milutinović Nikolić, A., Petrović, R., Banković, P.,& Mudrinić, T.. (2022). The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry
Elsevier., 915, 116332.
https://doi.org/10.1016/j.jelechem.2022.116332

Milovanović B, Marinović S, Vuković Z, Milutinović Nikolić A, Petrović R, Banković P, Mudrinić T. The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt. in Journal of Electroanalytical Chemistry. 2022;915:116332.
doi:10.1016/j.jelechem.2022.116332 .

Milovanović, Biljana, Marinović, Sanja, Vuković, Zorica, Milutinović Nikolić, Aleksandra, Petrović, Rada, Banković, Predrag, Mudrinić, Tihana, "The influence of cobalt loading on electrocatalytic performance toward glucose oxidation of pillared montmorillonite-supported cobalt" in Journal of Electroanalytical Chemistry, 915 (2022):116332,
https://doi.org/10.1016/j.jelechem.2022.116332 . .

TY  - CONF
AU  - Milovanović, Biljana
AU  - Marinović, Sanja
AU  - Petrović, Rada
AU  - Banković, Predrag
AU  - Mudrinić, Tihana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6283
AB  - This work investigated the kinetics of the glucose oxidation reaction on the carbon paste electrode modified with aluminum pillared clay-supported cobalt (CP-CoAP) in alkaline solution. Cyclic voltammetry and double-step chronoamperometry methods were employed for determining the kinetic parameters such as the charge transfer coefficient, the catalytic rate constant, and the diffusion coefficient. The obtained results confirm that the CP-CoAP can be considered as a competitive electrode material for glucose oxidation.
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 study of glucose oxidation reaction on carbon paste electrode modified with pillared clay-supported cobalt
VL  - I
SP  - 141
EP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_cer_6283
ER  - 

@conference{
author = "Milovanović, Biljana and Marinović, Sanja and Petrović, Rada and Banković, Predrag and Mudrinić, Tihana",
year = "2022",
abstract = "This work investigated the kinetics of the glucose oxidation reaction on the carbon paste electrode modified with aluminum pillared clay-supported cobalt (CP-CoAP) in alkaline solution. Cyclic voltammetry and double-step chronoamperometry methods were employed for determining the kinetic parameters such as the charge transfer coefficient, the catalytic rate constant, and the diffusion coefficient. The obtained results confirm that the CP-CoAP can be considered as a competitive electrode material for glucose oxidation.",
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 study of glucose oxidation reaction on carbon paste electrode modified with pillared clay-supported cobalt",
volume = "I",
pages = "141-144",
url = "https://hdl.handle.net/21.15107/rcub_cer_6283"
}

Milovanović, B., Marinović, S., Petrović, R., Banković, P.,& Mudrinić, T.. (2022). Kinetic study of glucose oxidation reaction on carbon paste electrode modified with pillared clay-supported cobalt. 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, 141-144.
https://hdl.handle.net/21.15107/rcub_cer_6283

Milovanović B, Marinović S, Petrović R, Banković P, Mudrinić T. Kinetic study of glucose oxidation reaction on carbon paste electrode modified with pillared clay-supported cobalt. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia. 2022;I:141-144.
https://hdl.handle.net/21.15107/rcub_cer_6283 .

Milovanović, Biljana, Marinović, Sanja, Petrović, Rada, Banković, Predrag, Mudrinić, Tihana, "Kinetic study of glucose oxidation reaction on carbon paste electrode modified with pillared clay-supported cobalt" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia, I (2022):141-144,
https://hdl.handle.net/21.15107/rcub_cer_6283 .

TY  - CONF
AU  - Milošević, Dragana
AU  - Milošević, Milena
AU  - Perendija, Jovana
AU  - Milovanović, Željka
AU  - Petrović, Predrag
AU  - Marinković, Aleksandar
AU  - Petrović, Rada
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6472
AB  - Water pollution is a consequence of permanent technological development, urbanization and industrialization, having a huge impact on human health and the environment. Thus, metal oxides received considerable scientific interest in the field of adsorption to reduce heavy metal contamination from water and wastewater. Three-dimensionally ordered macroporous (3DOM) alumina modified with iron oxide and (3-aminopropyl)triethoxysilane (APTES) ((FeAl)2O3-APTES) was synthesized and linked with subgleba of Handkea utriformis (S) through 3-(Carbomethoxy)propionyl chloride (CPC). Surface hydroxyl groups of metal oxides have an affinity for cations while the introduction of amino groups in (FeAl)2O3-APTES allows the creation of covalent attachment on subgleba. Subglebal tissue of mosaic puffball Handkea utriformis contains sugars, proteins and melanins i.e. a large number of functional groups that could interact with an adsorbate. The obtained adsorbent (SCPC-(FeAl)2O3-APTES) was used for Pb2+ removal from aqueous solutions under batch conditions, constant initial concentration of adsorbate and pH and different concentrations of the adsorbent. Composition and surface morphology were characterized by using FT-IR and  SEM analysis. Concentrations of Pb2+, before and after adsorption, were determined by using Atomic Absorption Spectroscopy (AAS). The nonlinear Langmuir and Freundlich isotherm models were evaluated to correlate experimental data in which best fit was achieved with the Langmuir isotherm model. The specific surface area (SBET) of the subgleba was very low; porosity and SBET were increased by (FeAl)2O3-APTES deposition onto SCPC, indicating the formation of porous metal oxides deposits. This modification contributed to a significant increase in adsorption capacity.
PB  - Faculty of Technology Leskovac
C3  - Book of Abstracts - 14th Symposium Novel Technologies and Economic Development, 22th-23th October 2021, Leskovac, Serbia
T1  - Structurally modified three-dimensionally ordered (3DOM) alumina linked to subgleba of Handkea utriformis for Pb2+ removal
SP  - 110
EP  - 110
UR  - https://hdl.handle.net/21.15107/rcub_cer_6472
ER  - 

@conference{
author = "Milošević, Dragana and Milošević, Milena and Perendija, Jovana and Milovanović, Željka and Petrović, Predrag and Marinković, Aleksandar and Petrović, Rada",
year = "2021",
abstract = "Water pollution is a consequence of permanent technological development, urbanization and industrialization, having a huge impact on human health and the environment. Thus, metal oxides received considerable scientific interest in the field of adsorption to reduce heavy metal contamination from water and wastewater. Three-dimensionally ordered macroporous (3DOM) alumina modified with iron oxide and (3-aminopropyl)triethoxysilane (APTES) ((FeAl)2O3-APTES) was synthesized and linked with subgleba of Handkea utriformis (S) through 3-(Carbomethoxy)propionyl chloride (CPC). Surface hydroxyl groups of metal oxides have an affinity for cations while the introduction of amino groups in (FeAl)2O3-APTES allows the creation of covalent attachment on subgleba. Subglebal tissue of mosaic puffball Handkea utriformis contains sugars, proteins and melanins i.e. a large number of functional groups that could interact with an adsorbate. The obtained adsorbent (SCPC-(FeAl)2O3-APTES) was used for Pb2+ removal from aqueous solutions under batch conditions, constant initial concentration of adsorbate and pH and different concentrations of the adsorbent. Composition and surface morphology were characterized by using FT-IR and  SEM analysis. Concentrations of Pb2+, before and after adsorption, were determined by using Atomic Absorption Spectroscopy (AAS). The nonlinear Langmuir and Freundlich isotherm models were evaluated to correlate experimental data in which best fit was achieved with the Langmuir isotherm model. The specific surface area (SBET) of the subgleba was very low; porosity and SBET were increased by (FeAl)2O3-APTES deposition onto SCPC, indicating the formation of porous metal oxides deposits. This modification contributed to a significant increase in adsorption capacity.",
publisher = "Faculty of Technology Leskovac",
journal = "Book of Abstracts - 14th Symposium Novel Technologies and Economic Development, 22th-23th October 2021, Leskovac, Serbia",
title = "Structurally modified three-dimensionally ordered (3DOM) alumina linked to subgleba of Handkea utriformis for Pb2+ removal",
pages = "110-110",
url = "https://hdl.handle.net/21.15107/rcub_cer_6472"
}

Milošević, D., Milošević, M., Perendija, J., Milovanović, Ž., Petrović, P., Marinković, A.,& Petrović, R.. (2021). Structurally modified three-dimensionally ordered (3DOM) alumina linked to subgleba of Handkea utriformis for Pb2+ removal. in Book of Abstracts - 14th Symposium Novel Technologies and Economic Development, 22th-23th October 2021, Leskovac, Serbia
Faculty of Technology Leskovac., 110-110.
https://hdl.handle.net/21.15107/rcub_cer_6472

Milošević D, Milošević M, Perendija J, Milovanović Ž, Petrović P, Marinković A, Petrović R. Structurally modified three-dimensionally ordered (3DOM) alumina linked to subgleba of Handkea utriformis for Pb2+ removal. in Book of Abstracts - 14th Symposium Novel Technologies and Economic Development, 22th-23th October 2021, Leskovac, Serbia. 2021;:110-110.
https://hdl.handle.net/21.15107/rcub_cer_6472 .

Milošević, Dragana, Milošević, Milena, Perendija, Jovana, Milovanović, Željka, Petrović, Predrag, Marinković, Aleksandar, Petrović, Rada, "Structurally modified three-dimensionally ordered (3DOM) alumina linked to subgleba of Handkea utriformis for Pb2+ removal" in Book of Abstracts - 14th Symposium Novel Technologies and Economic Development, 22th-23th October 2021, Leskovac, Serbia (2021):110-110,
https://hdl.handle.net/21.15107/rcub_cer_6472 .

TY  - JOUR
AU  - Milošević, Dragana
AU  - Lević, Steva
AU  - Lazarević, Slavica
AU  - Veličković, Zlate
AU  - Marinković, Aleksandar D.
AU  - Petrović, Rada
AU  - Petrović, Predrag
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4811
AB  - The alkali treated subglebal tissue of the mosaic puffball (Handkea utriformis) (Sa) and Sa modified with hydroxyapatite (Sa-HAp), obtained by successive ionic layer adsorption and reaction (SILAR) method, were used for the removal of Pb2+, Cd2+ and Ni2+ from aqueous solution. The materials were characterized by FT-IR, Raman, SEM and EDS analysis and by determination of pHPZC. The adsorption performances of Sa and Sa-HAp were assessed in batch experiments at different pH, contact times, temperatures and mass of the adsorbent. Different models of adsorption isotherms were used, and the best fit was obtained with the Langmuir model. Maximum adsorption capacities of Sa towards Pb2+, Cd2+ and Ni2+ were 44.82, 15.54 and 17.21 mg g−1, while for Sa-HAp were 79.55, 52.59 and 45.01 mg g−1, respectively. Kinetic data were well fitted by a pseudo second-order model, while thermodynamic studies disclose spontaneous and endothermic adsorption process. The Sa-Hap was successfully regenerated with 1 M NaCl and after the fifth desorption cycle and 10 h achieved 82.9, 69.7 and 60.4 %, while for 0.5 M NaCl + 0.5 M NaOH and 1 h was 78.3, 64.1, 57.5 % of desorbed Pb2+, Cd2+ and Ni2+, respectively. The competitive study and results from a column system confirmed good applicability of Sa-HAp adsorbent.
PB  - Elsevier
T2  - Journal of Environmental Management
T1  - Hybrid material based on subgleba of mosaic puffball mushroom (Handkea utriformis) as an adsorbent for heavy metal removal from aqueous solutions
VL  - 297
SP  - 113358
DO  - 10.1016/j.jenvman.2021.113358
ER  - 

@article{
author = "Milošević, Dragana and Lević, Steva and Lazarević, Slavica and Veličković, Zlate and Marinković, Aleksandar D. and Petrović, Rada and Petrović, Predrag",
year = "2021",
abstract = "The alkali treated subglebal tissue of the mosaic puffball (Handkea utriformis) (Sa) and Sa modified with hydroxyapatite (Sa-HAp), obtained by successive ionic layer adsorption and reaction (SILAR) method, were used for the removal of Pb2+, Cd2+ and Ni2+ from aqueous solution. The materials were characterized by FT-IR, Raman, SEM and EDS analysis and by determination of pHPZC. The adsorption performances of Sa and Sa-HAp were assessed in batch experiments at different pH, contact times, temperatures and mass of the adsorbent. Different models of adsorption isotherms were used, and the best fit was obtained with the Langmuir model. Maximum adsorption capacities of Sa towards Pb2+, Cd2+ and Ni2+ were 44.82, 15.54 and 17.21 mg g−1, while for Sa-HAp were 79.55, 52.59 and 45.01 mg g−1, respectively. Kinetic data were well fitted by a pseudo second-order model, while thermodynamic studies disclose spontaneous and endothermic adsorption process. The Sa-Hap was successfully regenerated with 1 M NaCl and after the fifth desorption cycle and 10 h achieved 82.9, 69.7 and 60.4 %, while for 0.5 M NaCl + 0.5 M NaOH and 1 h was 78.3, 64.1, 57.5 % of desorbed Pb2+, Cd2+ and Ni2+, respectively. The competitive study and results from a column system confirmed good applicability of Sa-HAp adsorbent.",
publisher = "Elsevier",
journal = "Journal of Environmental Management",
title = "Hybrid material based on subgleba of mosaic puffball mushroom (Handkea utriformis) as an adsorbent for heavy metal removal from aqueous solutions",
volume = "297",
pages = "113358",
doi = "10.1016/j.jenvman.2021.113358"
}

Milošević, D., Lević, S., Lazarević, S., Veličković, Z., Marinković, A. D., Petrović, R.,& Petrović, P.. (2021). Hybrid material based on subgleba of mosaic puffball mushroom (Handkea utriformis) as an adsorbent for heavy metal removal from aqueous solutions. in Journal of Environmental Management
Elsevier., 297, 113358.
https://doi.org/10.1016/j.jenvman.2021.113358

Milošević D, Lević S, Lazarević S, Veličković Z, Marinković AD, Petrović R, Petrović P. Hybrid material based on subgleba of mosaic puffball mushroom (Handkea utriformis) as an adsorbent for heavy metal removal from aqueous solutions. in Journal of Environmental Management. 2021;297:113358.
doi:10.1016/j.jenvman.2021.113358 .

Milošević, Dragana, Lević, Steva, Lazarević, Slavica, Veličković, Zlate, Marinković, Aleksandar D., Petrović, Rada, Petrović, Predrag, "Hybrid material based on subgleba of mosaic puffball mushroom (Handkea utriformis) as an adsorbent for heavy metal removal from aqueous solutions" in Journal of Environmental Management, 297 (2021):113358,
https://doi.org/10.1016/j.jenvman.2021.113358 . .

TY  - CONF
AU  - Milošević, Dragana
AU  - Kovačina, Jovanka
AU  - Bugarčić, Mladen
AU  - Simović, Anđela
AU  - Petrović, Predrag
AU  - Marinković, Aleksandar
AU  - Petrović, Rada
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6470
AB  - Mushrooms are widely investigated and recognized as perspective materials for the removal
of various pollutants from wastewater effluents. In this study, mosaic puffball Handkea
utriformis was tested as a new biodegradable, but relatively stable material for Cd2+
adsorption from aqueous mediums. The fruiting body of Handkea utriformis goes through the
process of autodigestion, during which their inside – gleba is turned into a powdery, sporebearing mass, and the lower portion of the fruiting body – subgleba, into a dark, dry, spongy
mass. The impurities and spores present on the surface of the subgleba can be removed in a
simple process of purification with acidic and alkaline solutions. The purification decreases
the hydrophobicity of the surface of this material, and therefore increases the number of
surface functionalities, knowing that subgleba consists of sugars, proteins and polymeric
pigments (melanins). The subgleba purified with 0.1M HCl and 0.1M NaOH (Sp) was used
for the removal of Cd2+ from the aqueous solution. The efficiency of the material for
adsorption of Cd2+ was investigated in a batch system under the constant initial concentration
of adsorbate and pH and different concentrations of the adsorbent. Composition and surface
morphology were characterized by using FT-IR spectroscopy, SEM and EDX analysis.
Concentrations of Cd2+, before and after adsorption, were determined by using Atomic
Absorption Spectroscopy (AAS). The Langmuir and Freundlich isotherm models, as well as
kinetic models, were evaluated to correlate experimental data. The results showed that kinetic
data were well fitted by a pseudo-second-order model. Isotherms studies revealed that the
best fit was achieved with the Langmuir isotherm model with a maximum adsorption capacity
of 15.2, 19.1 and 25.0 mg g-1 at 25, 35 and 45ºC, respectively.
PB  - Zvornik : Faculty of Technology
C3  - Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
T1  - Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis
SP  - 73
EP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_cer_6470
ER  - 

@conference{
author = "Milošević, Dragana and Kovačina, Jovanka and Bugarčić, Mladen and Simović, Anđela and Petrović, Predrag and Marinković, Aleksandar and Petrović, Rada",
year = "2021",
abstract = "Mushrooms are widely investigated and recognized as perspective materials for the removal
of various pollutants from wastewater effluents. In this study, mosaic puffball Handkea
utriformis was tested as a new biodegradable, but relatively stable material for Cd2+
adsorption from aqueous mediums. The fruiting body of Handkea utriformis goes through the
process of autodigestion, during which their inside – gleba is turned into a powdery, sporebearing mass, and the lower portion of the fruiting body – subgleba, into a dark, dry, spongy
mass. The impurities and spores present on the surface of the subgleba can be removed in a
simple process of purification with acidic and alkaline solutions. The purification decreases
the hydrophobicity of the surface of this material, and therefore increases the number of
surface functionalities, knowing that subgleba consists of sugars, proteins and polymeric
pigments (melanins). The subgleba purified with 0.1M HCl and 0.1M NaOH (Sp) was used
for the removal of Cd2+ from the aqueous solution. The efficiency of the material for
adsorption of Cd2+ was investigated in a batch system under the constant initial concentration
of adsorbate and pH and different concentrations of the adsorbent. Composition and surface
morphology were characterized by using FT-IR spectroscopy, SEM and EDX analysis.
Concentrations of Cd2+, before and after adsorption, were determined by using Atomic
Absorption Spectroscopy (AAS). The Langmuir and Freundlich isotherm models, as well as
kinetic models, were evaluated to correlate experimental data. The results showed that kinetic
data were well fitted by a pseudo-second-order model. Isotherms studies revealed that the
best fit was achieved with the Langmuir isotherm model with a maximum adsorption capacity
of 15.2, 19.1 and 25.0 mg g-1 at 25, 35 and 45ºC, respectively.",
publisher = "Zvornik : Faculty of Technology",
journal = "Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina",
title = "Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis",
pages = "73-73",
url = "https://hdl.handle.net/21.15107/rcub_cer_6470"
}

Milošević, D., Kovačina, J., Bugarčić, M., Simović, A., Petrović, P., Marinković, A.,& Petrović, R.. (2021). Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
Zvornik : Faculty of Technology., 73-73.
https://hdl.handle.net/21.15107/rcub_cer_6470

Milošević D, Kovačina J, Bugarčić M, Simović A, Petrović P, Marinković A, Petrović R. Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina. 2021;:73-73.
https://hdl.handle.net/21.15107/rcub_cer_6470 .

Milošević, Dragana, Kovačina, Jovanka, Bugarčić, Mladen, Simović, Anđela, Petrović, Predrag, Marinković, Aleksandar, Petrović, Rada, "Efficient removal of Cd2+ from aqueous solution using subgleba of mushroom Handkea utriformis" in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina (2021):73-73,
https://hdl.handle.net/21.15107/rcub_cer_6470 .

TY  - JOUR
AU  - Juma, Habish Amal
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Potkonjak, Branislav
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3874
AB  - In this study, the sorption of cadmium ions onto sepiolite modified with hydrated iron(III) oxide, Fe(III)-sepiolite, has been investigated in natural seawater, artificial seawater, aqueous solution of NaCl of the same ionic strength as the seawater and distilled water. The sorption experiments were performed as a function of the initial solution pH value, initial metal concentration, and equilibration time, using the batch method. The equilibrium sorption data were analyzed by the Langmuir, Freundlich and Sips isotherm models and the kinetics of sorption was analyzed using the pseudo-first-order and the pseudosecond-order kinetic models. The maximum sorption capacity and the strength of the sorbate-sorbent bonds at initial pH 7 were found to decrease in the following order: distilled water > NaCl solution > artificial seawater > natural seawater. The values of parameter nS in the Sips model, which fitted the equilibrium sorption results best, showed that heterogeneity of the sorbent surface was the highest in distilled water and the lowest in natural seawater. The sorption kinetic data fitted well with the pseudo-second-order kinetic model, which suggests that the rate-limiting step in Cd2+ sorption onto Fe(III)-sepiolite could be chemisorption. The low desorption percentage in both distilled water and 0.001 M HNO3 indicated that sorption occurred mainly by chemisorption mechanisms.
AB  - U ovom radu je proučavana sorpcija jona kadmijuma iz prirodne morske vode, laboratorijski pripremljene morske vode, vodenog rastvora NaCl iste jonske jačine kao morska voda i destilovane vode, na sepiolitu modifikovanom hidratisanim gvožđe(III)-oksidom. Eksperimenti su izvedeni u šaržnim uslovima, pri različitim početnim pH vrednostima, početnim koncentracijama jona kadmijuma i vremenima uravnotežavanja. Rezultati sorpcije u ravnotežnim uslovima su analizirani primenom modela Langmira, Frojndliha i Sipsa, a kinetika sorpcije je analizirana kinetičkim modelima pseudo-prvog i pseudo-drugog reda. Utvrđeno je da maksimalni adsorpcioni kapacitet i jačina veza sorbat-sorbent pri početnoj pH 7 opadaju u nizu: destilovana voda > NaCl rastvor > laboratorijski pripremljena morska voda > prirodna morska voda. Vrednosti parametra ns u modelu Sipsa, koji najbolje opisuje eksperimentalne rezultate, pokazuju da je heterogenost površine sorbenta najveća u destilovanoj vodi i najmanja u prirodnoj morskoj vodi. Rezultati ispitivanja kinetike sorpcije se bolje fituju modelom pseudo-drugog reda, što sugeriše da stupanj koji određuje brzinu sorpcije može biti hemisorpcija. Mali stepen desorpcije i u destilovanoj vodi i u 0.001 M HNO3 je potvrdio da se joni kadmijuma vezuju za modifikovani sepiolit uglavnom hemisorpcijom.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Chemical Industry and Chemical Engineering Quarterly
T1  - The effect of salinity on the sorption of cadmium ions from aqueous medium on Fe(III)-sepiolite
T1  - Uticaj saliniteta vode na sorpciju jona kadmijuma na Fe(III)-sepiolitu
VL  - 21
IS  - 2
SP  - 295
EP  - 303
DO  - 10.2298/CICEQ140130028H
ER  - 

@article{
author = "Juma, Habish Amal and Lazarević, Slavica and Janković-Častvan, Ivona and Potkonjak, Branislav and Janaćković, Đorđe and Petrović, Rada",
year = "2015",
abstract = "In this study, the sorption of cadmium ions onto sepiolite modified with hydrated iron(III) oxide, Fe(III)-sepiolite, has been investigated in natural seawater, artificial seawater, aqueous solution of NaCl of the same ionic strength as the seawater and distilled water. The sorption experiments were performed as a function of the initial solution pH value, initial metal concentration, and equilibration time, using the batch method. The equilibrium sorption data were analyzed by the Langmuir, Freundlich and Sips isotherm models and the kinetics of sorption was analyzed using the pseudo-first-order and the pseudosecond-order kinetic models. The maximum sorption capacity and the strength of the sorbate-sorbent bonds at initial pH 7 were found to decrease in the following order: distilled water > NaCl solution > artificial seawater > natural seawater. The values of parameter nS in the Sips model, which fitted the equilibrium sorption results best, showed that heterogeneity of the sorbent surface was the highest in distilled water and the lowest in natural seawater. The sorption kinetic data fitted well with the pseudo-second-order kinetic model, which suggests that the rate-limiting step in Cd2+ sorption onto Fe(III)-sepiolite could be chemisorption. The low desorption percentage in both distilled water and 0.001 M HNO3 indicated that sorption occurred mainly by chemisorption mechanisms., U ovom radu je proučavana sorpcija jona kadmijuma iz prirodne morske vode, laboratorijski pripremljene morske vode, vodenog rastvora NaCl iste jonske jačine kao morska voda i destilovane vode, na sepiolitu modifikovanom hidratisanim gvožđe(III)-oksidom. Eksperimenti su izvedeni u šaržnim uslovima, pri različitim početnim pH vrednostima, početnim koncentracijama jona kadmijuma i vremenima uravnotežavanja. Rezultati sorpcije u ravnotežnim uslovima su analizirani primenom modela Langmira, Frojndliha i Sipsa, a kinetika sorpcije je analizirana kinetičkim modelima pseudo-prvog i pseudo-drugog reda. Utvrđeno je da maksimalni adsorpcioni kapacitet i jačina veza sorbat-sorbent pri početnoj pH 7 opadaju u nizu: destilovana voda > NaCl rastvor > laboratorijski pripremljena morska voda > prirodna morska voda. Vrednosti parametra ns u modelu Sipsa, koji najbolje opisuje eksperimentalne rezultate, pokazuju da je heterogenost površine sorbenta najveća u destilovanoj vodi i najmanja u prirodnoj morskoj vodi. Rezultati ispitivanja kinetike sorpcije se bolje fituju modelom pseudo-drugog reda, što sugeriše da stupanj koji određuje brzinu sorpcije može biti hemisorpcija. Mali stepen desorpcije i u destilovanoj vodi i u 0.001 M HNO3 je potvrdio da se joni kadmijuma vezuju za modifikovani sepiolit uglavnom hemisorpcijom.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry and Chemical Engineering Quarterly",
title = "The effect of salinity on the sorption of cadmium ions from aqueous medium on Fe(III)-sepiolite, Uticaj saliniteta vode na sorpciju jona kadmijuma na Fe(III)-sepiolitu",
volume = "21",
number = "2",
pages = "295-303",
doi = "10.2298/CICEQ140130028H"
}

Juma, H. A., Lazarević, S., Janković-Častvan, I., Potkonjak, B., Janaćković, Đ.,& Petrović, R.. (2015). The effect of salinity on the sorption of cadmium ions from aqueous medium on Fe(III)-sepiolite. in Chemical Industry and Chemical Engineering Quarterly
Belgrade : Association of the Chemical Engineers of Serbia., 21(2), 295-303.
https://doi.org/10.2298/CICEQ140130028H

Juma HA, Lazarević S, Janković-Častvan I, Potkonjak B, Janaćković Đ, Petrović R. The effect of salinity on the sorption of cadmium ions from aqueous medium on Fe(III)-sepiolite. in Chemical Industry and Chemical Engineering Quarterly. 2015;21(2):295-303.
doi:10.2298/CICEQ140130028H .

Juma, Habish Amal, Lazarević, Slavica, Janković-Častvan, Ivona, Potkonjak, Branislav, Janaćković, Đorđe, Petrović, Rada, "The effect of salinity on the sorption of cadmium ions from aqueous medium on Fe(III)-sepiolite" in Chemical Industry and Chemical Engineering Quarterly, 21, no. 2 (2015):295-303,
https://doi.org/10.2298/CICEQ140130028H . .

TY  - JOUR
AU  - Ahribesh, Aysha Ali
AU  - Lazarević, Slavica
AU  - Potkonjak, Branislav
AU  - Bjelajac, Andjelika
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3876
AB  - The sorption of Cd2+ from natural seawater, artificial seawater, distilled water and NaCl solution of the same ionic strength as the seawater onto zeolite modified by iron(III) oxide (Fe(III)-zeolite) was investigated. The sorption was found to be time, concentration and pH dependent. The sorption capacity at the initial pH 7 decreased in the following order: distilled water > NaCl solution > artificial seawater > natural seawater. The isotherm study showed that Langmuir isotherm model could be adequately applied for the sorption in distilled water, indicating the homogeneous monolayer coverage at Fe(III)-zeolite surface, while the Freundlich isotherm model showed a better fit than the Langmuir model of the sorption data in saline waters, indicating multilayer heterogeneous coverage at the sorbent surface. The values of Freundlich parameter n suggested that the sorption was a favorable process and bonds between Cd2+ and Fe(III)-zeolite surface were stronger in NaCl solution than in natural and artificial seawater. Kinetics analysis showed that the mechanism of Cd2+ sorption from natural seawater differed from the sorption mechanism out of distilled water, NaCl solution and artificial seawater. The intra-particle diffusion kinetic model indicated that both boundary layer diffusion and intra-particle diffusion influenced the rate of sorption.
AB  - U ovom radu je ispitivana sorpcija Cd2+ iz prirodne morske vode, laboratorijski pripremljene morske vode, destilovane vode i rastvora NaCl, iste jonske jačine kao morska voda, na zeolitu modifikovanom gvožđe(III)-oksidom. Pokazano je da sorpcija zavisi od vremena, početne koncentracije Cd2+ i pH vrednosti. Sorpcioni kapacitet Fe(III)-zeolita za Cd2+ pri početnoj pH 7 opada u sledećem nizu: destilovana voda > NaCl rastvor > laboratorijski pripremljena morska voda > prirodna morska voda. Modelovanje rezultata ispitivanja sorpcije u ravnotežnim uslovima je pokazalo da se adsorpcija iz destilovane vode može opisati Langmirovim modelom, što ukazuje na homogenu sorpciju i formiranje monosloja na površini Fe(III)-zeolita. Rezultati sorpcije iz slanih voda se bolje opisuju Frojndlihovim nego Langmirovim modelom, što ukazuje na višeslojnu sorpciju na heterogenoj površini sorbenta. Vrednosti Frojndlihovog parametra n pokazuju da je sorpcija Cd2+ na Fe(III)-zeolitu favorizovan proces i da su veze između Cd2+ i površine Fe(III)-zeolita jače u NaCl rastvoru nego u prirodnoj i laboratorijski pripremljenoj morskoj vodi. Kinetička analiza sorpcije je pokazala da se mehanizam sorpcije iz prirodne morske vode razlikuje od mehanizma sorpcije iz ostalih ispitivanih tipova vode. Kinetički model unutarčestične difuzije je pokazao da i difuzija kroz granični sloj i unutarčestična difuzija određuju brzinu sorpcije. Difuzija kroz granični sloj je u većoj meri zastupljena kod sorpcije iz morske vode nego u slučaju sorpcije iz drugih ispitivanih tipova vode.
PB  - Serbia : Association of Chemists and Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Sorption of cadmium ions from saline waters onto Fe(III)-zeolite
T1  - Sorpcija jona kadmijuma iz slanih voda na Fe(III)-zeolitu
VL  - 69
IS  - 3
SP  - 253
EP  - 260
DO  - 10.2298/HEMIND140122038A
ER  - 

@article{
author = "Ahribesh, Aysha Ali and Lazarević, Slavica and Potkonjak, Branislav and Bjelajac, Andjelika and Janaćković, Đorđe and Petrović, Rada",
year = "2015",
abstract = "The sorption of Cd2+ from natural seawater, artificial seawater, distilled water and NaCl solution of the same ionic strength as the seawater onto zeolite modified by iron(III) oxide (Fe(III)-zeolite) was investigated. The sorption was found to be time, concentration and pH dependent. The sorption capacity at the initial pH 7 decreased in the following order: distilled water > NaCl solution > artificial seawater > natural seawater. The isotherm study showed that Langmuir isotherm model could be adequately applied for the sorption in distilled water, indicating the homogeneous monolayer coverage at Fe(III)-zeolite surface, while the Freundlich isotherm model showed a better fit than the Langmuir model of the sorption data in saline waters, indicating multilayer heterogeneous coverage at the sorbent surface. The values of Freundlich parameter n suggested that the sorption was a favorable process and bonds between Cd2+ and Fe(III)-zeolite surface were stronger in NaCl solution than in natural and artificial seawater. Kinetics analysis showed that the mechanism of Cd2+ sorption from natural seawater differed from the sorption mechanism out of distilled water, NaCl solution and artificial seawater. The intra-particle diffusion kinetic model indicated that both boundary layer diffusion and intra-particle diffusion influenced the rate of sorption., U ovom radu je ispitivana sorpcija Cd2+ iz prirodne morske vode, laboratorijski pripremljene morske vode, destilovane vode i rastvora NaCl, iste jonske jačine kao morska voda, na zeolitu modifikovanom gvožđe(III)-oksidom. Pokazano je da sorpcija zavisi od vremena, početne koncentracije Cd2+ i pH vrednosti. Sorpcioni kapacitet Fe(III)-zeolita za Cd2+ pri početnoj pH 7 opada u sledećem nizu: destilovana voda > NaCl rastvor > laboratorijski pripremljena morska voda > prirodna morska voda. Modelovanje rezultata ispitivanja sorpcije u ravnotežnim uslovima je pokazalo da se adsorpcija iz destilovane vode može opisati Langmirovim modelom, što ukazuje na homogenu sorpciju i formiranje monosloja na površini Fe(III)-zeolita. Rezultati sorpcije iz slanih voda se bolje opisuju Frojndlihovim nego Langmirovim modelom, što ukazuje na višeslojnu sorpciju na heterogenoj površini sorbenta. Vrednosti Frojndlihovog parametra n pokazuju da je sorpcija Cd2+ na Fe(III)-zeolitu favorizovan proces i da su veze između Cd2+ i površine Fe(III)-zeolita jače u NaCl rastvoru nego u prirodnoj i laboratorijski pripremljenoj morskoj vodi. Kinetička analiza sorpcije je pokazala da se mehanizam sorpcije iz prirodne morske vode razlikuje od mehanizma sorpcije iz ostalih ispitivanih tipova vode. Kinetički model unutarčestične difuzije je pokazao da i difuzija kroz granični sloj i unutarčestična difuzija određuju brzinu sorpcije. Difuzija kroz granični sloj je u većoj meri zastupljena kod sorpcije iz morske vode nego u slučaju sorpcije iz drugih ispitivanih tipova vode.",
publisher = "Serbia : Association of Chemists and Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Sorption of cadmium ions from saline waters onto Fe(III)-zeolite, Sorpcija jona kadmijuma iz slanih voda na Fe(III)-zeolitu",
volume = "69",
number = "3",
pages = "253-260",
doi = "10.2298/HEMIND140122038A"
}

Ahribesh, A. A., Lazarević, S., Potkonjak, B., Bjelajac, A., Janaćković, Đ.,& Petrović, R.. (2015). Sorption of cadmium ions from saline waters onto Fe(III)-zeolite. in Hemijska industrija
Serbia : Association of Chemists and Chemical Engineers of Serbia., 69(3), 253-260.
https://doi.org/10.2298/HEMIND140122038A

Ahribesh AA, Lazarević S, Potkonjak B, Bjelajac A, Janaćković Đ, Petrović R. Sorption of cadmium ions from saline waters onto Fe(III)-zeolite. in Hemijska industrija. 2015;69(3):253-260.
doi:10.2298/HEMIND140122038A .

Ahribesh, Aysha Ali, Lazarević, Slavica, Potkonjak, Branislav, Bjelajac, Andjelika, Janaćković, Đorđe, Petrović, Rada, "Sorption of cadmium ions from saline waters onto Fe(III)-zeolite" in Hemijska industrija, 69, no. 3 (2015):253-260,
https://doi.org/10.2298/HEMIND140122038A . .

TY  - JOUR
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Jovanović, Dušan
AU  - Milonjić, Slobodan
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4122
AB  - The adsorption mechanisms of Pb2+, Cd2+ and Sr2+ ions on natural sepiolite and the influence of acid treatment on the adsorption capacity of sepiolite were investigated. The point of zero charge, pHpzc, is 7.4 ± 0.1 for natural sepiolite and 6.9 ± 0.1 for partially acid-activated sepiolite. The shift of the pHpzc of sepiolites toward lower pH values in solutions of Pb2+ and Cd2+ ions indicates that specific adsorption of these cations on natural and acid-activated sepiolites occurred, which was more pronounced for Pb2+ ions than for Cd2+ ions. There was no shift of the pHpzc in solution containing Sr2+ ions, suggesting that specific adsorption of this cation did not occur. The affinity for ion exchange with the Mg2+ ions from the sepiolite structure was the highest for Pb2+ ions, then Cd2+, whereas the affinity for Sr2+ ions was negligible. The adsorption isotherms suggest that the sequence of the efficiency of the sepiolites adsorption is Pb2+ > Cd2+ > Sr2+. The retention of Pb2+ and Cd2+ ions by sepiolite occurs dominantly by specific adsorption and exchange of Mg2+ ions from the sepiolite structure. The concentration in the external outer sphere of the Stern layer by electrostatic forces is the dominant mechanism for the retention of Sr2+ ions on the surface of sepiolites. Despite increases in the surface areas upon acid activation, improvements in the adsorption were not observed, as a result of the decreasing number of Mg-OH groups, as main centers for specific adsorption, and the number of Mg2+ ions available for ion exchange with Pb2+, Cd2+ and Sr2+ ions. The removal of Mg-OH groups from the sepiolite also resulted in a decrease in the point of zero charge and an increase of the relative surface acidity, from 2.6 ± 0.1 for the natural to 6.4 ± 0.1 for the acid-activated sepiolite.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Adsorption of Pb2+, Cd2+ and Sr2+ ions onto natural and acid-activated sepiolites
VL  - 37
IS  - 1-2
SP  - 47
EP  - 57
DO  - 10.1016/j.clay.2006.11.008
ER  - 

@article{
author = "Lazarević, Slavica and Janković-Častvan, Ivona and Jovanović, Dušan and Milonjić, Slobodan and Janaćković, Đorđe and Petrović, Rada",
year = "2007",
abstract = "The adsorption mechanisms of Pb2+, Cd2+ and Sr2+ ions on natural sepiolite and the influence of acid treatment on the adsorption capacity of sepiolite were investigated. The point of zero charge, pHpzc, is 7.4 ± 0.1 for natural sepiolite and 6.9 ± 0.1 for partially acid-activated sepiolite. The shift of the pHpzc of sepiolites toward lower pH values in solutions of Pb2+ and Cd2+ ions indicates that specific adsorption of these cations on natural and acid-activated sepiolites occurred, which was more pronounced for Pb2+ ions than for Cd2+ ions. There was no shift of the pHpzc in solution containing Sr2+ ions, suggesting that specific adsorption of this cation did not occur. The affinity for ion exchange with the Mg2+ ions from the sepiolite structure was the highest for Pb2+ ions, then Cd2+, whereas the affinity for Sr2+ ions was negligible. The adsorption isotherms suggest that the sequence of the efficiency of the sepiolites adsorption is Pb2+ > Cd2+ > Sr2+. The retention of Pb2+ and Cd2+ ions by sepiolite occurs dominantly by specific adsorption and exchange of Mg2+ ions from the sepiolite structure. The concentration in the external outer sphere of the Stern layer by electrostatic forces is the dominant mechanism for the retention of Sr2+ ions on the surface of sepiolites. Despite increases in the surface areas upon acid activation, improvements in the adsorption were not observed, as a result of the decreasing number of Mg-OH groups, as main centers for specific adsorption, and the number of Mg2+ ions available for ion exchange with Pb2+, Cd2+ and Sr2+ ions. The removal of Mg-OH groups from the sepiolite also resulted in a decrease in the point of zero charge and an increase of the relative surface acidity, from 2.6 ± 0.1 for the natural to 6.4 ± 0.1 for the acid-activated sepiolite.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Adsorption of Pb2+, Cd2+ and Sr2+ ions onto natural and acid-activated sepiolites",
volume = "37",
number = "1-2",
pages = "47-57",
doi = "10.1016/j.clay.2006.11.008"
}

Lazarević, S., Janković-Častvan, I., Jovanović, D., Milonjić, S., Janaćković, Đ.,& Petrović, R.. (2007). Adsorption of Pb2+, Cd2+ and Sr2+ ions onto natural and acid-activated sepiolites. in Applied Clay Science
Elsevier., 37(1-2), 47-57.
https://doi.org/10.1016/j.clay.2006.11.008

Lazarević S, Janković-Častvan I, Jovanović D, Milonjić S, Janaćković Đ, Petrović R. Adsorption of Pb2+, Cd2+ and Sr2+ ions onto natural and acid-activated sepiolites. in Applied Clay Science. 2007;37(1-2):47-57.
doi:10.1016/j.clay.2006.11.008 .

Lazarević, Slavica, Janković-Častvan, Ivona, Jovanović, Dušan, Milonjić, Slobodan, Janaćković, Đorđe, Petrović, Rada, "Adsorption of Pb2+, Cd2+ and Sr2+ ions onto natural and acid-activated sepiolites" in Applied Clay Science, 37, no. 1-2 (2007):47-57,
https://doi.org/10.1016/j.clay.2006.11.008 . .