TY  - JOUR
AU  - Mirković, Miljana
AU  - Bracanović, Ivan
AU  - Krstić, Aleksandar
AU  - Đukić, Dunja
AU  - Dodevski, Vladimir
AU  - Kalijadis, Ana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12991
AB  - Octacalcium phosphate (OCP) is a material from the calcium phos-phate group with a crystal structure similar to hydroxyapatite. The removal process of lead and cadmium in aqueous solution using octacalcium phosphate material was investigated. OCP material was synthesized by the solution pre-cipitation method. The structural and phase properties of OCP before and after the removal process were determined by the X-ray diffraction (XRD) method. Microstructural and semi-quantitative analysis of the material was investigated by  scanning  electron  microscopy  and  energy  dispersive  X-ray  spectroscopy (SEM-EDS).  Characteristic  bands  and  functional  group  determination  were revealed  using  the  Fourier-transform  infrared  spectroscopy  with  attenuated total  reflection  (FTIR-ATR).  As  target  pollutants,  Cd(II)  and  Pb(II)  were chosen in adsorption experiments. Results show that OCP in the first 10 min has a very fast removal rate for Pb(II); the equilibrium state was reached after 10 min with more than 98 % adsorption efficiency. Results for Cd(II), results showed  the  same  removal  rate  but  somewhat    lower  adsorption  efficiency, amounted to approximately 63 %.
T2  - Journal of the Serbian Chemical Society
T1  - Removal of lead and cadmium from aqueous solution using octacalcium phosphate as an adsorbent
T1  - Uklanjanje olova i kadmijuma iz vodenog rastvora koristeći okrakalcijum-fosfat kao adsorbent
VL  - 89
IS  - 2
SP  - 231
EP  - 244
DO  - 10.2298/JSC230915104M
ER  - 

@article{
author = "Mirković, Miljana and Bracanović, Ivan and Krstić, Aleksandar and Đukić, Dunja and Dodevski, Vladimir and Kalijadis, Ana",
year = "2024",
abstract = "Octacalcium phosphate (OCP) is a material from the calcium phos-phate group with a crystal structure similar to hydroxyapatite. The removal process of lead and cadmium in aqueous solution using octacalcium phosphate material was investigated. OCP material was synthesized by the solution pre-cipitation method. The structural and phase properties of OCP before and after the removal process were determined by the X-ray diffraction (XRD) method. Microstructural and semi-quantitative analysis of the material was investigated by  scanning  electron  microscopy  and  energy  dispersive  X-ray  spectroscopy (SEM-EDS).  Characteristic  bands  and  functional  group  determination  were revealed  using  the  Fourier-transform  infrared  spectroscopy  with  attenuated total  reflection  (FTIR-ATR).  As  target  pollutants,  Cd(II)  and  Pb(II)  were chosen in adsorption experiments. Results show that OCP in the first 10 min has a very fast removal rate for Pb(II); the equilibrium state was reached after 10 min with more than 98 % adsorption efficiency. Results for Cd(II), results showed  the  same  removal  rate  but  somewhat    lower  adsorption  efficiency, amounted to approximately 63 %.",
journal = "Journal of the Serbian Chemical Society",
title = "Removal of lead and cadmium from aqueous solution using octacalcium phosphate as an adsorbent, Uklanjanje olova i kadmijuma iz vodenog rastvora koristeći okrakalcijum-fosfat kao adsorbent",
volume = "89",
number = "2",
pages = "231-244",
doi = "10.2298/JSC230915104M"
}

Mirković, M., Bracanović, I., Krstić, A., Đukić, D., Dodevski, V.,& Kalijadis, A.. (2024). Removal of lead and cadmium from aqueous solution using octacalcium phosphate as an adsorbent. in Journal of the Serbian Chemical Society, 89(2), 231-244.
https://doi.org/10.2298/JSC230915104M

Mirković M, Bracanović I, Krstić A, Đukić D, Dodevski V, Kalijadis A. Removal of lead and cadmium from aqueous solution using octacalcium phosphate as an adsorbent. in Journal of the Serbian Chemical Society. 2024;89(2):231-244.
doi:10.2298/JSC230915104M .

Mirković, Miljana, Bracanović, Ivan, Krstić, Aleksandar, Đukić, Dunja, Dodevski, Vladimir, Kalijadis, Ana, "Removal of lead and cadmium from aqueous solution using octacalcium phosphate as an adsorbent" in Journal of the Serbian Chemical Society, 89, no. 2 (2024):231-244,
https://doi.org/10.2298/JSC230915104M . .

TY  - JOUR
AU  - Radenković, Marina
AU  - Petrović, Jelena
AU  - Pap, Sabolc
AU  - Kalijadis, Ana
AU  - Momčilović, Miloš
AU  - Krstulović, Nikša
AU  - Živković, Sanja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12206
AB  - Toxic elements, lead, and copper are often found in wastewater discharged from industries such as mining. The discharge of untreated effluent poses severe environmental challenges and sorption methods using agricultural waste materials are proposed as an efficient and cost-effective solution. For this research, activated sunflower material (ASM) was prepared from abundantly available agricultural sunflower waste residues and utilised to remove Pb2+ and Cu2+ ions from an aqueous medium. To begin, we examine variables that may have an impact on the adsorption process, such as pH, contact time, adsorbent dose, and initial concentration using Box-Behnken Design (BBD) to find optimal conditions. Maximum removal efficiency was found at a pH of 5, contact time of 180 min, and initial concentration of 50 mg/L for Pb2+ and 150 mg/L for Cu2+. Additionally, adsorbent dose differed by element, for Cu2+ it was 200 mg, whilst for Pb2+ it was 124 mg. Features of activated carbon such as morphology, elemental composition, textural properties, and surface functionalities were characterised using SEM-EDS, BET, FTIR, and XPS. The adsorption equilibrium data were analysed by Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. It was found that the obtained results for Pb2+ adsorption were better described with the Freundlich isotherm model. Maximum adsorption capacities for Pb2+ and Cu2+ were 91.8 mg/g and 20.5 mg/g, respectively. Furthermore, kinetic studies confirmed that the adsorption process followed a pseudo-first-order kinetic model for Pb2+, but for Cu2+ all applied kinetic models fitted experimental data with the same values of the correlation coefficient (R2 = 0.99). After comprehensive analysis using the methods mentioned above, ASM was tested for the removal of Cu2+ from mining wastewater sample, and the obtained removal efficiency was 98.6% ± 2.0%. The results of desorption experiments conducted, confirm that ASM has good potential to be reused for the purpose of removing Cu2+ from wastewater.
T2  - Chemosphere
T1  - Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications
VL  - 347
SP  - 140684
DO  - 10.1016/j.chemosphere.2023.140684
ER  - 

@article{
author = "Radenković, Marina and Petrović, Jelena and Pap, Sabolc and Kalijadis, Ana and Momčilović, Miloš and Krstulović, Nikša and Živković, Sanja",
year = "2024",
abstract = "Toxic elements, lead, and copper are often found in wastewater discharged from industries such as mining. The discharge of untreated effluent poses severe environmental challenges and sorption methods using agricultural waste materials are proposed as an efficient and cost-effective solution. For this research, activated sunflower material (ASM) was prepared from abundantly available agricultural sunflower waste residues and utilised to remove Pb2+ and Cu2+ ions from an aqueous medium. To begin, we examine variables that may have an impact on the adsorption process, such as pH, contact time, adsorbent dose, and initial concentration using Box-Behnken Design (BBD) to find optimal conditions. Maximum removal efficiency was found at a pH of 5, contact time of 180 min, and initial concentration of 50 mg/L for Pb2+ and 150 mg/L for Cu2+. Additionally, adsorbent dose differed by element, for Cu2+ it was 200 mg, whilst for Pb2+ it was 124 mg. Features of activated carbon such as morphology, elemental composition, textural properties, and surface functionalities were characterised using SEM-EDS, BET, FTIR, and XPS. The adsorption equilibrium data were analysed by Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. It was found that the obtained results for Pb2+ adsorption were better described with the Freundlich isotherm model. Maximum adsorption capacities for Pb2+ and Cu2+ were 91.8 mg/g and 20.5 mg/g, respectively. Furthermore, kinetic studies confirmed that the adsorption process followed a pseudo-first-order kinetic model for Pb2+, but for Cu2+ all applied kinetic models fitted experimental data with the same values of the correlation coefficient (R2 = 0.99). After comprehensive analysis using the methods mentioned above, ASM was tested for the removal of Cu2+ from mining wastewater sample, and the obtained removal efficiency was 98.6% ± 2.0%. The results of desorption experiments conducted, confirm that ASM has good potential to be reused for the purpose of removing Cu2+ from wastewater.",
journal = "Chemosphere",
title = "Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications",
volume = "347",
pages = "140684",
doi = "10.1016/j.chemosphere.2023.140684"
}

Radenković, M., Petrović, J., Pap, S., Kalijadis, A., Momčilović, M., Krstulović, N.,& Živković, S.. (2024). Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications. in Chemosphere, 347, 140684.
https://doi.org/10.1016/j.chemosphere.2023.140684

Radenković M, Petrović J, Pap S, Kalijadis A, Momčilović M, Krstulović N, Živković S. Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications. in Chemosphere. 2024;347:140684.
doi:10.1016/j.chemosphere.2023.140684 .

Radenković, Marina, Petrović, Jelena, Pap, Sabolc, Kalijadis, Ana, Momčilović, Miloš, Krstulović, Nikša, Živković, Sanja, "Waste biomass derived highly-porous carbon material for toxic metal removal: Optimisation, mechanisms and environmental implications" in Chemosphere, 347 (2024):140684,
https://doi.org/10.1016/j.chemosphere.2023.140684 . .

TY  - CONF
AU  - Radenković, Marina
AU  - Petrović, Jelena D.
AU  - Pap, Sabolc
AU  - Kalijadis, Ana
AU  - Momčilović, Miloš
AU  - Živković, Sanja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12436
AB  - U ovom radu za procenu efikasnosti uklanjanja bakra iz vodenih rastvora korišćen je aktivni ugalj dobijen od agroindustrijskog otpada suncokreta. Boks-Benkenov dizajn i metoda odzivne površine korišćeni su za optimizaciju procesnih parametara adsorpcije kao i međusobni uticaj varijabli na efikasnost uklanjanja. Sintetizovani aktivni ugalj primenjen je za uklanjanje bakra iz realnog uzorka otpadne vode, a dobijeni rezultati ukazuju na veliki afinitet za separaciju bakra (98,6% ± 2,0%).
AB  - In this work, activated carbon obtained from sunflower agro-industrial waste was used to evaluate the removal efficiency of copper from aqueous solutions. The Box-Behnken design combined with the response surface method was employed to optimize the adsorption process parameters as well as the mutual influence of the variables on removal efficiency. The synthesized activated carbon was applied to remove copper from a real wastewater sample, and the obtained results indicate a high affinity for copper separation (98,6% ± 2,0%).
PB  - Belgrade : Serbian Chemical Society
C3  - 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings
T1  - Statistička optimizacija adsorpcije bakra iz vodenih rastvora korišćenjem aktiviranog ugljeničnog materijala agroindustrijskog otpada suncokreta
T1  - Statistical optimization of copper adsorption from aqueous solutions by sunflower waste derived activated carbon
SP  - 129
EP  - 129
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12079
ER  - 

@conference{
author = "Radenković, Marina and Petrović, Jelena D. and Pap, Sabolc and Kalijadis, Ana and Momčilović, Miloš and Živković, Sanja",
year = "2023",
abstract = "U ovom radu za procenu efikasnosti uklanjanja bakra iz vodenih rastvora korišćen je aktivni ugalj dobijen od agroindustrijskog otpada suncokreta. Boks-Benkenov dizajn i metoda odzivne površine korišćeni su za optimizaciju procesnih parametara adsorpcije kao i međusobni uticaj varijabli na efikasnost uklanjanja. Sintetizovani aktivni ugalj primenjen je za uklanjanje bakra iz realnog uzorka otpadne vode, a dobijeni rezultati ukazuju na veliki afinitet za separaciju bakra (98,6% ± 2,0%)., In this work, activated carbon obtained from sunflower agro-industrial waste was used to evaluate the removal efficiency of copper from aqueous solutions. The Box-Behnken design combined with the response surface method was employed to optimize the adsorption process parameters as well as the mutual influence of the variables on removal efficiency. The synthesized activated carbon was applied to remove copper from a real wastewater sample, and the obtained results indicate a high affinity for copper separation (98,6% ± 2,0%).",
publisher = "Belgrade : Serbian Chemical Society",
journal = "59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings",
title = "Statistička optimizacija adsorpcije bakra iz vodenih rastvora korišćenjem aktiviranog ugljeničnog materijala agroindustrijskog otpada suncokreta, Statistical optimization of copper adsorption from aqueous solutions by sunflower waste derived activated carbon",
pages = "129-129",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12079"
}

Radenković, M., Petrović, J. D., Pap, S., Kalijadis, A., Momčilović, M.,& Živković, S.. (2023). Statistička optimizacija adsorpcije bakra iz vodenih rastvora korišćenjem aktiviranog ugljeničnog materijala agroindustrijskog otpada suncokreta. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings
Belgrade : Serbian Chemical Society., 129-129.
https://hdl.handle.net/21.15107/rcub_vinar_12079

Radenković M, Petrović JD, Pap S, Kalijadis A, Momčilović M, Živković S. Statistička optimizacija adsorpcije bakra iz vodenih rastvora korišćenjem aktiviranog ugljeničnog materijala agroindustrijskog otpada suncokreta. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings. 2023;:129-129.
https://hdl.handle.net/21.15107/rcub_vinar_12079 .

Radenković, Marina, Petrović, Jelena D., Pap, Sabolc, Kalijadis, Ana, Momčilović, Miloš, Živković, Sanja, "Statistička optimizacija adsorpcije bakra iz vodenih rastvora korišćenjem aktiviranog ugljeničnog materijala agroindustrijskog otpada suncokreta" in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings (2023):129-129,
https://hdl.handle.net/21.15107/rcub_vinar_12079 .

TY  - JOUR
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Lazović, Vladimir
AU  - Trifunović, Snežana
AU  - Babić, Biljana M.
AU  - Dapčević, Aleksandra
AU  - Kovač, Janez
AU  - Vukčević, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10693
AB  - N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites
VL  - 88
IS  - 2
SP  - 183
EP  - 197
DO  - 10.2298/JSC220608079M
ER  - 

@article{
author = "Maletić, Marina and Kalijadis, Ana and Lazović, Vladimir and Trifunović, Snežana and Babić, Biljana M. and Dapčević, Aleksandra and Kovač, Janez and Vukčević, Marija",
year = "2023",
abstract = "N-doped TiO2/carbon composites (TiO2/CN) with different nitrogen content, were obtained starting from titanium isopropoxide and glucose, and by varying the amount of melamine, added to starting reaction mixture. For comparison, an undoped sample (TiO2/C) was also prepared. Structural and surface characteristics were determined through scanning electron microscopy, thermogravimetric analysis, elemental analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction and nitrogen adsorption–desorption isotherms. The photocatalytic activity of TiO2/CN composites was examined via photocatalytic degradation of methylene blue and multiclass pharmaceuticals from water solution. It was found that N doping of TiO2/carbon composites induced changes in structural and surface characteristics of TiO2/CN composites, improving their adsorption, but decreasing photocatalytic efficiency. Nevertheless, TiO2/CN0.05 composite obtained by the hydrothermal synthesis in the presence of glucose and 0.05 g melamine showed the highest efficiency for removing selected pharmaceuticals and methylene blue from aqueous solutions through the combined processes of adsorption in the dark, and photocatalytic degradation under UV and visible irradiation.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites",
volume = "88",
number = "2",
pages = "183-197",
doi = "10.2298/JSC220608079M"
}

Maletić, M., Kalijadis, A., Lazović, V., Trifunović, S., Babić, B. M., Dapčević, A., Kovač, J.,& Vukčević, M.. (2023). Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society, 88(2), 183-197.
https://doi.org/10.2298/JSC220608079M

Maletić M, Kalijadis A, Lazović V, Trifunović S, Babić BM, Dapčević A, Kovač J, Vukčević M. Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites. in Journal of the Serbian Chemical Society. 2023;88(2):183-197.
doi:10.2298/JSC220608079M .

Maletić, Marina, Kalijadis, Ana, Lazović, Vladimir, Trifunović, Snežana, Babić, Biljana M., Dapčević, Aleksandra, Kovač, Janez, Vukčević, Marija, "Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites" in Journal of the Serbian Chemical Society, 88, no. 2 (2023):183-197,
https://doi.org/10.2298/JSC220608079M . .

TY  - JOUR
AU  - Prekajski-Đorđević, Marija
AU  - Zarubica, Aleksandra
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Butulija, Svetlana
AU  - Maletaškić, Jelena
AU  - Matović, Branko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11174
AB  - Nanoemulsion technique based on Ouzo effect was applied for the fast and simple synthesis of Ag3PO4 at room temperature. X-ray powder diffraction analysis and Raman spectroscopy reviled that synthesized powder was single-phase. Using scanning electron microscopy analysis, it was found that the synthesized Ag3PO4 particles were near-spherical shape with an average diameter of 100 nm. The high value for the specific surface area of obtained powder was measured by Brunauer–Emmet–Teller method. Finally, the Ag3PO4 product was used as a photocatalyst for the photodegradation of crystal violet dye in an aqueous solution. Nanoemulsion strategy procedure provides a simple pathway to obtain a highly efficient single-phase Ag3PO4 photocatalyst.
T2  - Journal of the Serbian Chemical Society
T1  - Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial
VL  - 87
IS  - 11
SP  - 1285
EP  - 1296
DO  - 10.2298/JSC211103055P
ER  - 

@article{
author = "Prekajski-Đorđević, Marija and Zarubica, Aleksandra and Kalijadis, Ana and Babić, Biljana and Butulija, Svetlana and Maletaškić, Jelena and Matović, Branko",
year = "2022",
abstract = "Nanoemulsion technique based on Ouzo effect was applied for the fast and simple synthesis of Ag3PO4 at room temperature. X-ray powder diffraction analysis and Raman spectroscopy reviled that synthesized powder was single-phase. Using scanning electron microscopy analysis, it was found that the synthesized Ag3PO4 particles were near-spherical shape with an average diameter of 100 nm. The high value for the specific surface area of obtained powder was measured by Brunauer–Emmet–Teller method. Finally, the Ag3PO4 product was used as a photocatalyst for the photodegradation of crystal violet dye in an aqueous solution. Nanoemulsion strategy procedure provides a simple pathway to obtain a highly efficient single-phase Ag3PO4 photocatalyst.",
journal = "Journal of the Serbian Chemical Society",
title = "Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial",
volume = "87",
number = "11",
pages = "1285-1296",
doi = "10.2298/JSC211103055P"
}

Prekajski-Đorđević, M., Zarubica, A., Kalijadis, A., Babić, B., Butulija, S., Maletaškić, J.,& Matović, B.. (2022). Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial. in Journal of the Serbian Chemical Society, 87(11), 1285-1296.
https://doi.org/10.2298/JSC211103055P

Prekajski-Đorđević M, Zarubica A, Kalijadis A, Babić B, Butulija S, Maletaškić J, Matović B. Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial. in Journal of the Serbian Chemical Society. 2022;87(11):1285-1296.
doi:10.2298/JSC211103055P .

Prekajski-Đorđević, Marija, Zarubica, Aleksandra, Kalijadis, Ana, Babić, Biljana, Butulija, Svetlana, Maletaškić, Jelena, Matović, Branko, "Nanoemulsification synthesis route for obtaining highly efficient Ag3PO4 photocatalytic nanomaterial" in Journal of the Serbian Chemical Society, 87, no. 11 (2022):1285-1296,
https://doi.org/10.2298/JSC211103055P . .

TY  - JOUR
AU  - Krstić, Aleksandar D.
AU  - Lolić, Aleksandar
AU  - Mirković, Miljana M.
AU  - Kovač, Janez
AU  - Minović-Arsić, Tamara
AU  - Babić, Biljana
AU  - Kalijadis, Ana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10552
AB  - In this study carbon cryogel, cryogel doped with nitrogen, and both nitrogen and sulfur co-doped carbon cryogels (nominal concentration of nitrogen was in the range 2–10 wt%) were synthesized and used as an adsorbent for the removal of carbamazepine, naproxen, diazepam and diclofenac from water. A batch adsorption kinetics study was performed by determination of contact time influence, the effect of pH, and adsorption isotherms. Structural and morphological analysis showed that there are no changes in turbostratic carbon structure induced by doping/co-doping, but noticeable morphology changes were observed. The presence of both nitrogen and nitrogen/sulfur were confirmed and results showed low content on the surface, especially for sulfur. Obtained high values of the specific surface area for co-doped samples (up to 1530 m2/g) can be caused by sulfur atoms burning or leaving the material during carbonization. The results of the adsorption kinetics study showed that the adsorption of all pharmaceuticals on all tested samples followed the pseudo-second-order kinetic model. The maximum adsorption capacity obtained from the Langmuir isotherm model is higher for doped (91.28–168.92 mg/g) and co-doped (152.97–488.06 mg/g) samples than for pristine sample (59.75–266.28 mg/g). Calculated adsorption energy values from the Dubinin-Radushkevich model indicate that the possible mechanism was physisorption. Desorption tests that were carried out showed satisfactory reusability for all samples. The favorable adsorption characteristics for the co-doped sample with a higher nominal concentration of nitrogen and sulfur qualifies as a potentially good adsorbent for the removal of pharmaceuticals from water.
T2  - Journal of Environmental Chemical Engineering
T1  - Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water
VL  - 10
IS  - 6
SP  - 108998
DO  - 10.1016/j.jece.2022.108998
ER  - 

@article{
author = "Krstić, Aleksandar D. and Lolić, Aleksandar and Mirković, Miljana M. and Kovač, Janez and Minović-Arsić, Tamara and Babić, Biljana and Kalijadis, Ana",
year = "2022",
abstract = "In this study carbon cryogel, cryogel doped with nitrogen, and both nitrogen and sulfur co-doped carbon cryogels (nominal concentration of nitrogen was in the range 2–10 wt%) were synthesized and used as an adsorbent for the removal of carbamazepine, naproxen, diazepam and diclofenac from water. A batch adsorption kinetics study was performed by determination of contact time influence, the effect of pH, and adsorption isotherms. Structural and morphological analysis showed that there are no changes in turbostratic carbon structure induced by doping/co-doping, but noticeable morphology changes were observed. The presence of both nitrogen and nitrogen/sulfur were confirmed and results showed low content on the surface, especially for sulfur. Obtained high values of the specific surface area for co-doped samples (up to 1530 m2/g) can be caused by sulfur atoms burning or leaving the material during carbonization. The results of the adsorption kinetics study showed that the adsorption of all pharmaceuticals on all tested samples followed the pseudo-second-order kinetic model. The maximum adsorption capacity obtained from the Langmuir isotherm model is higher for doped (91.28–168.92 mg/g) and co-doped (152.97–488.06 mg/g) samples than for pristine sample (59.75–266.28 mg/g). Calculated adsorption energy values from the Dubinin-Radushkevich model indicate that the possible mechanism was physisorption. Desorption tests that were carried out showed satisfactory reusability for all samples. The favorable adsorption characteristics for the co-doped sample with a higher nominal concentration of nitrogen and sulfur qualifies as a potentially good adsorbent for the removal of pharmaceuticals from water.",
journal = "Journal of Environmental Chemical Engineering",
title = "Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water",
volume = "10",
number = "6",
pages = "108998",
doi = "10.1016/j.jece.2022.108998"
}

Krstić, A. D., Lolić, A., Mirković, M. M., Kovač, J., Minović-Arsić, T., Babić, B.,& Kalijadis, A.. (2022). Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water. in Journal of Environmental Chemical Engineering, 10(6), 108998.
https://doi.org/10.1016/j.jece.2022.108998

Krstić AD, Lolić A, Mirković MM, Kovač J, Minović-Arsić T, Babić B, Kalijadis A. Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water. in Journal of Environmental Chemical Engineering. 2022;10(6):108998.
doi:10.1016/j.jece.2022.108998 .

Krstić, Aleksandar D., Lolić, Aleksandar, Mirković, Miljana M., Kovač, Janez, Minović-Arsić, Tamara, Babić, Biljana, Kalijadis, Ana, "Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water" in Journal of Environmental Chemical Engineering, 10, no. 6 (2022):108998,
https://doi.org/10.1016/j.jece.2022.108998 . .

TY  - JOUR
AU  - Mirković, Miljana M.
AU  - Filipović, Suzana
AU  - Kalijadis, Ana
AU  - Mašković, Pavle
AU  - Mašković, Jelena
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10270
AB  - Due to the growing number of people infected with the new coronavirus globally, which weakens immunity, there has been an increase in bacterial infections. Hence, knowledge about simple and low-cost synthesis methods of materials with good structural and antimicrobial properties is of great importance. A material obtained through the combination of a nanoscale hydroxyapatite material (with good biocompatibility) and titanium dioxide (with good degradation properties of organic molecules) can absorb and decompose bacteria. In this investigation, three different synthesis routes used to prepare hydroxyapatite/titanium dioxide nanomaterials are examined. The morphology and semiquantitative chemical composition are characterized by scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX). The obtained materials’ phase and structural characterization are determined using the X-ray powder diffraction method (XRD). The crystallite sizes of the obtained materials are in the range of 8 nm to 15 nm. Based on XRD peak positions, the hexagonal hydroxyapatite phases are formed in all samples along with TiO2 anatase and rutile phases. According to SEM and TEM analyses, the morphology of the prepared samples differs depending on the synthesis route. The EDX analysis confirmed the presence of Ti, Ca, P, and O in the obtained materials. The IR spectroscopy verified the vibration bands characteristic for HAp and titanium. The investigated materials show excellent antimicrobial and photocatalytic properties.
T2  - Antibiotics
T1  - Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties
VL  - 11
IS  - 5
SP  - 592
DO  - 10.3390/antibiotics11050592
ER  - 

@article{
author = "Mirković, Miljana M. and Filipović, Suzana and Kalijadis, Ana and Mašković, Pavle and Mašković, Jelena and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2022",
abstract = "Due to the growing number of people infected with the new coronavirus globally, which weakens immunity, there has been an increase in bacterial infections. Hence, knowledge about simple and low-cost synthesis methods of materials with good structural and antimicrobial properties is of great importance. A material obtained through the combination of a nanoscale hydroxyapatite material (with good biocompatibility) and titanium dioxide (with good degradation properties of organic molecules) can absorb and decompose bacteria. In this investigation, three different synthesis routes used to prepare hydroxyapatite/titanium dioxide nanomaterials are examined. The morphology and semiquantitative chemical composition are characterized by scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX). The obtained materials’ phase and structural characterization are determined using the X-ray powder diffraction method (XRD). The crystallite sizes of the obtained materials are in the range of 8 nm to 15 nm. Based on XRD peak positions, the hexagonal hydroxyapatite phases are formed in all samples along with TiO2 anatase and rutile phases. According to SEM and TEM analyses, the morphology of the prepared samples differs depending on the synthesis route. The EDX analysis confirmed the presence of Ti, Ca, P, and O in the obtained materials. The IR spectroscopy verified the vibration bands characteristic for HAp and titanium. The investigated materials show excellent antimicrobial and photocatalytic properties.",
journal = "Antibiotics",
title = "Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties",
volume = "11",
number = "5",
pages = "592",
doi = "10.3390/antibiotics11050592"
}

Mirković, M. M., Filipović, S., Kalijadis, A., Mašković, P., Mašković, J., Vlahović, B.,& Pavlović, V. B.. (2022). Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties. in Antibiotics, 11(5), 592.
https://doi.org/10.3390/antibiotics11050592

Mirković MM, Filipović S, Kalijadis A, Mašković P, Mašković J, Vlahović B, Pavlović VB. Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties. in Antibiotics. 2022;11(5):592.
doi:10.3390/antibiotics11050592 .

Mirković, Miljana M., Filipović, Suzana, Kalijadis, Ana, Mašković, Pavle, Mašković, Jelena, Vlahović, Branislav, Pavlović, Vladimir B., "Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties" in Antibiotics, 11, no. 5 (2022):592,
https://doi.org/10.3390/antibiotics11050592 . .

TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Maletić, Marina
AU  - Đurkić, Tatjana M.
AU  - Babić, Biljana M.
AU  - Kalijadis, Ana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10223
AB  - Carbonaceous solid-phase extraction (SPE) sorbent, efficient in isolation and enrichment of multiclass pesticides and pharmaceuticals from water, was synthesized starting from cheap waste beech sawdust and using KOH as the activated agent. The first step in carbon material preparation was hydrothermal carbonization of the waste beech sawdust. Following hydrothermal treatment, the obtained material was activated, using different amounts of KOH. It was found that applied activation leads to changes in material structure, an increase in specific surface area, and a decrease in the number of surface oxygen groups compared to carbonized sample. SPE procedure of multiclass pesticides and pharmaceuticals from water using activated carbonized beech sawdust (AcSD) was optimized by selecting the appropriate elution solvents, the sample pH, and the sample volume to obtain the highest enrichment efficiency. The optimized SPE procedure was applied for water analysis using different AcSD samples as a sorbent for analyte preconcentration. Activated carbon sorbent, obtained with the highest amount of KOH, showed the highest recoveries regarding the most analytes, which were comparable with the recoveries obtained by commercial cartridges. © 2022 Serbian Chemical Society. All rights reserved.
T2  - Journal of the Serbian Chemical Society
T1  - Beech sawdust based adsorbents for solid-phase extraction of pesticides and pharmaceuticals
VL  - 87
IS  - 2
SP  - 205
EP  - 217
DO  - 10.2298/JSC210614051V
ER  - 

@article{
author = "Vukčević, Marija M. and Maletić, Marina and Đurkić, Tatjana M. and Babić, Biljana M. and Kalijadis, Ana",
year = "2022",
abstract = "Carbonaceous solid-phase extraction (SPE) sorbent, efficient in isolation and enrichment of multiclass pesticides and pharmaceuticals from water, was synthesized starting from cheap waste beech sawdust and using KOH as the activated agent. The first step in carbon material preparation was hydrothermal carbonization of the waste beech sawdust. Following hydrothermal treatment, the obtained material was activated, using different amounts of KOH. It was found that applied activation leads to changes in material structure, an increase in specific surface area, and a decrease in the number of surface oxygen groups compared to carbonized sample. SPE procedure of multiclass pesticides and pharmaceuticals from water using activated carbonized beech sawdust (AcSD) was optimized by selecting the appropriate elution solvents, the sample pH, and the sample volume to obtain the highest enrichment efficiency. The optimized SPE procedure was applied for water analysis using different AcSD samples as a sorbent for analyte preconcentration. Activated carbon sorbent, obtained with the highest amount of KOH, showed the highest recoveries regarding the most analytes, which were comparable with the recoveries obtained by commercial cartridges. © 2022 Serbian Chemical Society. All rights reserved.",
journal = "Journal of the Serbian Chemical Society",
title = "Beech sawdust based adsorbents for solid-phase extraction of pesticides and pharmaceuticals",
volume = "87",
number = "2",
pages = "205-217",
doi = "10.2298/JSC210614051V"
}

Vukčević, M. M., Maletić, M., Đurkić, T. M., Babić, B. M.,& Kalijadis, A.. (2022). Beech sawdust based adsorbents for solid-phase extraction of pesticides and pharmaceuticals. in Journal of the Serbian Chemical Society, 87(2), 205-217.
https://doi.org/10.2298/JSC210614051V

Vukčević MM, Maletić M, Đurkić TM, Babić BM, Kalijadis A. Beech sawdust based adsorbents for solid-phase extraction of pesticides and pharmaceuticals. in Journal of the Serbian Chemical Society. 2022;87(2):205-217.
doi:10.2298/JSC210614051V .

Vukčević, Marija M., Maletić, Marina, Đurkić, Tatjana M., Babić, Biljana M., Kalijadis, Ana, "Beech sawdust based adsorbents for solid-phase extraction of pesticides and pharmaceuticals" in Journal of the Serbian Chemical Society, 87, no. 2 (2022):205-217,
https://doi.org/10.2298/JSC210614051V . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Maletić, Marina M.
AU  - Bjelajac, Anđelika Z.
AU  - Babić, Biljana M.
AU  - Minović-Arsić, Tamara
AU  - Vukčević, Marija M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10339
AB  - In this study, the influence of boron doping on structural and surface properties of carbon material synthesized by a hydrothermal method was investigated, and the obtained results were compared with the previously published influence that boron has on characteristics of carbonized boron-doped hydrothermal carbons (CHTCB). Hydrothermal carbons doped with boron (HTCB) were obtained by the hydrothermal synthesis of glucose solutions with different nominal concentrations of boric acid. It was found that glucose based hydrothermal carbon does not have developed porosity, and the presence of boron in their structure has insignificant influence on it. On the contrary, additional carbonization increases the specific surface area of the undoped sample, while an increase in boron content drastically decreases the specific surface area. Boron doping leads to a decrease in the amount of surface oxygen groups, for both, hydrothermally synthesized and additionally carbonized materials. Raman analysis showed that the boron content does not affect a structural arrangement of the HTCB samples, and Raman structural parameters show a higher degree of disorder, compared to the CHTCB samples. Comparison of structural and surface characteristics of hydrothermal carbons and carbonized materials contributes to the study of the so far, insufficiently clarified influence that boron incorporation has on the material characteristics. © 2022 Serbian Chemical Society. All rights reserved.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of boron doping on characteristics of glucose-based hydrothermal carbons
VL  - 87
IS  - 6
SP  - 749
EP  - 760
DO  - 10.2298/JSC211011001K
ER  - 

@article{
author = "Kalijadis, Ana and Maletić, Marina M. and Bjelajac, Anđelika Z. and Babić, Biljana M. and Minović-Arsić, Tamara and Vukčević, Marija M.",
year = "2022",
abstract = "In this study, the influence of boron doping on structural and surface properties of carbon material synthesized by a hydrothermal method was investigated, and the obtained results were compared with the previously published influence that boron has on characteristics of carbonized boron-doped hydrothermal carbons (CHTCB). Hydrothermal carbons doped with boron (HTCB) were obtained by the hydrothermal synthesis of glucose solutions with different nominal concentrations of boric acid. It was found that glucose based hydrothermal carbon does not have developed porosity, and the presence of boron in their structure has insignificant influence on it. On the contrary, additional carbonization increases the specific surface area of the undoped sample, while an increase in boron content drastically decreases the specific surface area. Boron doping leads to a decrease in the amount of surface oxygen groups, for both, hydrothermally synthesized and additionally carbonized materials. Raman analysis showed that the boron content does not affect a structural arrangement of the HTCB samples, and Raman structural parameters show a higher degree of disorder, compared to the CHTCB samples. Comparison of structural and surface characteristics of hydrothermal carbons and carbonized materials contributes to the study of the so far, insufficiently clarified influence that boron incorporation has on the material characteristics. © 2022 Serbian Chemical Society. All rights reserved.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of boron doping on characteristics of glucose-based hydrothermal carbons",
volume = "87",
number = "6",
pages = "749-760",
doi = "10.2298/JSC211011001K"
}

Kalijadis, A., Maletić, M. M., Bjelajac, A. Z., Babić, B. M., Minović-Arsić, T.,& Vukčević, M. M.. (2022). Influence of boron doping on characteristics of glucose-based hydrothermal carbons. in Journal of the Serbian Chemical Society, 87(6), 749-760.
https://doi.org/10.2298/JSC211011001K

Kalijadis A, Maletić MM, Bjelajac AZ, Babić BM, Minović-Arsić T, Vukčević MM. Influence of boron doping on characteristics of glucose-based hydrothermal carbons. in Journal of the Serbian Chemical Society. 2022;87(6):749-760.
doi:10.2298/JSC211011001K .

Kalijadis, Ana, Maletić, Marina M., Bjelajac, Anđelika Z., Babić, Biljana M., Minović-Arsić, Tamara, Vukčević, Marija M., "Influence of boron doping on characteristics of glucose-based hydrothermal carbons" in Journal of the Serbian Chemical Society, 87, no. 6 (2022):749-760,
https://doi.org/10.2298/JSC211011001K . .

TY  - CONF
AU  - Prokić, Danijela
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Babić, Biljana M.
AU  - Janković-Častvan, Ivona
AU  - Đurkić, Tatjana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11598
AB  - Za ekstrakciju estrogenih hormona (estrona, 17β-estradiola i 17α-etinilestradiola) iz vodenih rastvora metodom ekstrakcije na čvrstoj fazi, u ovom radu korišćen je ugljenični kriogel kao sorbent. Metoda ekstrakcije na čvrstoj fazi optimizovana je izborom odgovarajuće mase sorbenta, zapremine i početne pH vrednosti vodenog rastvora hormona, kao i odabirom organskog rastvarača za eluira-nje. Koncentracija ispitivanih hormona u rastvoru nakon ekstrakcije određivana je metodom tečne hromatografije visoke performance u sprezi sa tandem masenom spektrometrijom. Na osnovu prinosa ispitivanih hormona, dobijeni su optimalni parametri metode ekstrakcije na čvrstoj fazi za predkon-centrisanje hormona iz vodenog rastvora: ekstrakcija hormona iz 100 cm3 vodenog rastvora, početne pH vrednosti podešene na 7, vrši se na 20 mg sorpcionog materijala, a smeša dihlormetan/methanol koristi se kao organski rastvarač za eluiranje. Vrednosti prinosa, dobijenih pri optimalnim uslovima, iznosile su od 77 % za estron, do 86 % za 17β-estradiol, uz relativnu standardnu devijaciju od 7,4 do 18 %.
AB  - In this study, carbon cryogel was used as solid-phase extraction sorbent for the extraction of estrogenic hormones (estrone, 17β-estradiol, and 17α-ethinylestradiol) from water solution.
The solid-phase extraction (SPE) method was optimized by choosing an appropriate mass of the sorbent, volume, and initial pH of estrogenic hormone water solution, as well as by choosing an appropriate organic solvent. The concentration of tested hormones after extraction was measured by liquid
chromatography coupled with tandem mass spectrometry. Based on the obtained hormone recoveries, the following optimal conditions of the SPE procedure were chosen: 100 cm3
of hormone water
solution at initial pH adjusted to 7, 20 mg of the sorbent, the methanol-dichloromethane mixture was
used for hormone elution. Recoveries obtained under the optimal conditions ranged from 77 % for
estrone, to 86 % for 17β-estradiol, with relative standard deviation from 7,4 to 18 %.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 34. Međunarodni kongres o procesnoj industriji - PROCESING ′21 : zbornik radova
T1  - Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta
T1  - Extraction of estrogen hormones from water using
carbon cryogel as sorbent
SP  - 123
EP  - 127
DO  - 10.24094/ptk.021.34.1.123
ER  - 

@conference{
author = "Prokić, Danijela and Vukčević, Marija and Maletić, Marina and Kalijadis, Ana and Babić, Biljana M. and Janković-Častvan, Ivona and Đurkić, Tatjana",
year = "2021",
abstract = "Za ekstrakciju estrogenih hormona (estrona, 17β-estradiola i 17α-etinilestradiola) iz vodenih rastvora metodom ekstrakcije na čvrstoj fazi, u ovom radu korišćen je ugljenični kriogel kao sorbent. Metoda ekstrakcije na čvrstoj fazi optimizovana je izborom odgovarajuće mase sorbenta, zapremine i početne pH vrednosti vodenog rastvora hormona, kao i odabirom organskog rastvarača za eluira-nje. Koncentracija ispitivanih hormona u rastvoru nakon ekstrakcije određivana je metodom tečne hromatografije visoke performance u sprezi sa tandem masenom spektrometrijom. Na osnovu prinosa ispitivanih hormona, dobijeni su optimalni parametri metode ekstrakcije na čvrstoj fazi za predkon-centrisanje hormona iz vodenog rastvora: ekstrakcija hormona iz 100 cm3 vodenog rastvora, početne pH vrednosti podešene na 7, vrši se na 20 mg sorpcionog materijala, a smeša dihlormetan/methanol koristi se kao organski rastvarač za eluiranje. Vrednosti prinosa, dobijenih pri optimalnim uslovima, iznosile su od 77 % za estron, do 86 % za 17β-estradiol, uz relativnu standardnu devijaciju od 7,4 do 18 %., In this study, carbon cryogel was used as solid-phase extraction sorbent for the extraction of estrogenic hormones (estrone, 17β-estradiol, and 17α-ethinylestradiol) from water solution.
The solid-phase extraction (SPE) method was optimized by choosing an appropriate mass of the sorbent, volume, and initial pH of estrogenic hormone water solution, as well as by choosing an appropriate organic solvent. The concentration of tested hormones after extraction was measured by liquid
chromatography coupled with tandem mass spectrometry. Based on the obtained hormone recoveries, the following optimal conditions of the SPE procedure were chosen: 100 cm3
of hormone water
solution at initial pH adjusted to 7, 20 mg of the sorbent, the methanol-dichloromethane mixture was
used for hormone elution. Recoveries obtained under the optimal conditions ranged from 77 % for
estrone, to 86 % for 17β-estradiol, with relative standard deviation from 7,4 to 18 %.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "34. Međunarodni kongres o procesnoj industriji - PROCESING ′21 : zbornik radova",
title = "Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta, Extraction of estrogen hormones from water using
carbon cryogel as sorbent",
pages = "123-127",
doi = "10.24094/ptk.021.34.1.123"
}

Prokić, D., Vukčević, M., Maletić, M., Kalijadis, A., Babić, B. M., Janković-Častvan, I.,& Đurkić, T.. (2021). Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta. in 34. Međunarodni kongres o procesnoj industriji - PROCESING ′21 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 123-127.
https://doi.org/10.24094/ptk.021.34.1.123

Prokić D, Vukčević M, Maletić M, Kalijadis A, Babić BM, Janković-Častvan I, Đurkić T. Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta. in 34. Međunarodni kongres o procesnoj industriji - PROCESING ′21 : zbornik radova. 2021;:123-127.
doi:10.24094/ptk.021.34.1.123 .

Prokić, Danijela, Vukčević, Marija, Maletić, Marina, Kalijadis, Ana, Babić, Biljana M., Janković-Častvan, Ivona, Đurkić, Tatjana, "Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta" in 34. Međunarodni kongres o procesnoj industriji - PROCESING ′21 : zbornik radova (2021):123-127,
https://doi.org/10.24094/ptk.021.34.1.123 . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Gavrilov, Nemanja M.
AU  - Jokić, Bojan M.
AU  - Gilić, Martina
AU  - Krstić, Aleksandar D.
AU  - Pašti, Igor A.
AU  - Babić, Biljana M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8495
AB  - Resorcinol–formaldehyde (RF) cryogels were synthesized by sol–gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere to 950 °C. Nitrogen doped CCs (CCN) were synthesized by introducing melamine into RF precursor mixture solution to obtain nitrogen concentration 2, 6 and 10 wt.%. Material was characterized by elemental analysis, nitrogen adsorption– desorption measurements, scanning electron microscopy (SEM), Raman spectroscopy, FT-IR Spectroscopy. Cyclic voltammetry (CV) was used to investigate capacitive and electrocatalytic properties. Conductivity measurement was also performed. Elemental analysis results confirmed presence of nitrogen in CCN samples in the range from 0.45 to 1.15 wt.%. Raman spectroscopy of the samples showed increase of D and G peak integrated intensity ratio (ID/IG) with nitrogen doping suggesting that the structural disorder as well as edge plane density increase, but according to similar ID/IG values for CCN samples, their share is not directly related to the amount of incorporated N. Characterization by nitrogen adsorption showed that overall specific surface and maximum mesopores are achieved in CCN sample with medium nitrogen concentration. Results of cyclic voltammetry experiments demonstrated maximum capacitance for CCN sample with smallest N wt.% indicating that narrow pore size distribution and high specific surface area are dominant factors to achieve good capacitive behavior. The relatively low doping level of nitrogen reached in CCN samples may be the reason for the incomplete reduction of oxygen to hydroxide and furthermore it turned out that presence of N in the structure of CC had a negligible effect on the otherwise relatively high conductivity of CC. © 2019 Elsevier B.V.
T2  - Materials Chemistry and Physics
T1  - Composition, structure and potential energy application of nitrogen doped carbon cryogels
VL  - 239
SP  - 122120
DO  - 10.1016/j.matchemphys.2019.122120
ER  - 

@article{
author = "Kalijadis, Ana and Gavrilov, Nemanja M. and Jokić, Bojan M. and Gilić, Martina and Krstić, Aleksandar D. and Pašti, Igor A. and Babić, Biljana M.",
year = "2020",
abstract = "Resorcinol–formaldehyde (RF) cryogels were synthesized by sol–gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere to 950 °C. Nitrogen doped CCs (CCN) were synthesized by introducing melamine into RF precursor mixture solution to obtain nitrogen concentration 2, 6 and 10 wt.%. Material was characterized by elemental analysis, nitrogen adsorption– desorption measurements, scanning electron microscopy (SEM), Raman spectroscopy, FT-IR Spectroscopy. Cyclic voltammetry (CV) was used to investigate capacitive and electrocatalytic properties. Conductivity measurement was also performed. Elemental analysis results confirmed presence of nitrogen in CCN samples in the range from 0.45 to 1.15 wt.%. Raman spectroscopy of the samples showed increase of D and G peak integrated intensity ratio (ID/IG) with nitrogen doping suggesting that the structural disorder as well as edge plane density increase, but according to similar ID/IG values for CCN samples, their share is not directly related to the amount of incorporated N. Characterization by nitrogen adsorption showed that overall specific surface and maximum mesopores are achieved in CCN sample with medium nitrogen concentration. Results of cyclic voltammetry experiments demonstrated maximum capacitance for CCN sample with smallest N wt.% indicating that narrow pore size distribution and high specific surface area are dominant factors to achieve good capacitive behavior. The relatively low doping level of nitrogen reached in CCN samples may be the reason for the incomplete reduction of oxygen to hydroxide and furthermore it turned out that presence of N in the structure of CC had a negligible effect on the otherwise relatively high conductivity of CC. © 2019 Elsevier B.V.",
journal = "Materials Chemistry and Physics",
title = "Composition, structure and potential energy application of nitrogen doped carbon cryogels",
volume = "239",
pages = "122120",
doi = "10.1016/j.matchemphys.2019.122120"
}

Kalijadis, A., Gavrilov, N. M., Jokić, B. M., Gilić, M., Krstić, A. D., Pašti, I. A.,& Babić, B. M.. (2020). Composition, structure and potential energy application of nitrogen doped carbon cryogels. in Materials Chemistry and Physics, 239, 122120.
https://doi.org/10.1016/j.matchemphys.2019.122120

Kalijadis A, Gavrilov NM, Jokić BM, Gilić M, Krstić AD, Pašti IA, Babić BM. Composition, structure and potential energy application of nitrogen doped carbon cryogels. in Materials Chemistry and Physics. 2020;239:122120.
doi:10.1016/j.matchemphys.2019.122120 .

Kalijadis, Ana, Gavrilov, Nemanja M., Jokić, Bojan M., Gilić, Martina, Krstić, Aleksandar D., Pašti, Igor A., Babić, Biljana M., "Composition, structure and potential energy application of nitrogen doped carbon cryogels" in Materials Chemistry and Physics, 239 (2020):122120,
https://doi.org/10.1016/j.matchemphys.2019.122120 . .

TY  - JOUR
AU  - Prokić, Danijela
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Maletić, Marina
AU  - Babić, Biljana M.
AU  - Đurkić, Tatjana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9715
AB  - This paper explores the applicability of unmodified and chemically modified activated carbon cloths (ACCs) for the removal of estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol from water. In order to examine the influence of surface properties on hormone adsorption, chemical modification of ACCs with HNO3, HCl, or KOH was employed. Applied treatments increased the specific surface area and changed the content of oxygen functional groups. Increased content of acidic surface oxygen functionalities enhanced adsorption efficiency up to 30 % and had a more dominant influence on adsorption capacity than specific surface area. Adsorption of estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol followed pseudo-second-order kinetic model, while the equilibrium adsorption data fitted well with the Freundlich isotherm model. Calculated mean sorption energy values of 1.4475, 1.3387, and 1.0541 kJ/mol, for E1, E2, and EE2 respectively, indicated that removal of selected hormones was dominated by physisorption mechanism. Obtained Langmuir adsorption capacities, 12.34, 12.66, and 11.11 mg/g for estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol, respectively, as well as convenience of manipulation, recommend activated carbon cloth modified with HNO3 as an efficient adsorbent for removing estrogen hormones from the water.
PB  - Korean Fiber Soc, Seoul
T2  - Fibers and Polymers
T1  - Removal of Estrone, 17β-Estradiol, and 17α-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths
VL  - 21
IS  - 10
SP  - 2263
EP  - 2274
DO  - 10.1007/s12221-020-9758-2
ER  - 

@article{
author = "Prokić, Danijela and Vukčević, Marija and Kalijadis, Ana and Maletić, Marina and Babić, Biljana M. and Đurkić, Tatjana",
year = "2020",
abstract = "This paper explores the applicability of unmodified and chemically modified activated carbon cloths (ACCs) for the removal of estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol from water. In order to examine the influence of surface properties on hormone adsorption, chemical modification of ACCs with HNO3, HCl, or KOH was employed. Applied treatments increased the specific surface area and changed the content of oxygen functional groups. Increased content of acidic surface oxygen functionalities enhanced adsorption efficiency up to 30 % and had a more dominant influence on adsorption capacity than specific surface area. Adsorption of estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol followed pseudo-second-order kinetic model, while the equilibrium adsorption data fitted well with the Freundlich isotherm model. Calculated mean sorption energy values of 1.4475, 1.3387, and 1.0541 kJ/mol, for E1, E2, and EE2 respectively, indicated that removal of selected hormones was dominated by physisorption mechanism. Obtained Langmuir adsorption capacities, 12.34, 12.66, and 11.11 mg/g for estrone, 17 beta-estradiol, and 17 alpha-ethinylestradiol, respectively, as well as convenience of manipulation, recommend activated carbon cloth modified with HNO3 as an efficient adsorbent for removing estrogen hormones from the water.",
publisher = "Korean Fiber Soc, Seoul",
journal = "Fibers and Polymers",
title = "Removal of Estrone, 17β-Estradiol, and 17α-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths",
volume = "21",
number = "10",
pages = "2263-2274",
doi = "10.1007/s12221-020-9758-2"
}

Prokić, D., Vukčević, M., Kalijadis, A., Maletić, M., Babić, B. M.,& Đurkić, T.. (2020). Removal of Estrone, 17β-Estradiol, and 17α-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths. in Fibers and Polymers
Korean Fiber Soc, Seoul., 21(10), 2263-2274.
https://doi.org/10.1007/s12221-020-9758-2

Prokić D, Vukčević M, Kalijadis A, Maletić M, Babić BM, Đurkić T. Removal of Estrone, 17β-Estradiol, and 17α-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths. in Fibers and Polymers. 2020;21(10):2263-2274.
doi:10.1007/s12221-020-9758-2 .

Prokić, Danijela, Vukčević, Marija, Kalijadis, Ana, Maletić, Marina, Babić, Biljana M., Đurkić, Tatjana, "Removal of Estrone, 17β-Estradiol, and 17α-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths" in Fibers and Polymers, 21, no. 10 (2020):2263-2274,
https://doi.org/10.1007/s12221-020-9758-2 . .

TY  - CONF
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Đurkić, Tatjana
AU  - Laušević, Mila
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11032
AB  - Zagađenje vodenih tokova teškim metalima je jedan od najakutnijih ekoloških
problema današnjice. S obzirom na to da teški metali nisu biorazgradivi, oni se akumuliraju
u životnoj sredini i na taj način ulaze u lanac ishrane ljudi i životinja, pa kao veoma toksične
materije, mogu izazivati niz opasnih i često neizlečivih bolesti. Iz tog razloga, istraživači
godinama u nazad razvijaju nove i usavršavaju postojeće tehnike za prečišćavanje otpadnih
voda od ovih zagađujućih materija [1]. Za prečišćavanje vode zagađene teškim metalima
mogu se koristiti različite metode: hemijska precipitacija, elektrohemijski tretmani, filtracija,
reverzna osmoza, jonska izmena, membranski procesi, adsorpcija. Jedna od najčešće
korišćenih je adsorpcija, koja zbog mogućnosti regenerisanja adsorbenta, odgovarajućim
desorpcionim procesom, predstavlja veoma efektivnu i ekonomičnu metodu. Zahvaljujući
razvijenoj specifičnoj površini i poroznosti, kao i prisustvu funkcionalnih grupa na površini,
različiti ugljenični materijali pokazuju visoku efikasnost u uklanjanju teških metala iz
vode. Karbon kriogel (CC) predstavlja ugljenični materijal razvijene mezoporoznosti čije
se adsorpcione karakteristike mogu poboljšati optimizacijom i kontrolisanjem parametara
dobijanja. U ovom radu je ispitana mogućnost uklanjanja jona teških metala (Cd2+, Ni2+ i
Zn2+) iz vode, korišćenjem karbon kriogela i hemijski modifikovanog karbon kriogela.
Prvi korak u sintezi karbon kriogela je polikondenzacija rezorcinola i formaldehida,
u prisustvu natrijum-karbonata kao katalizatora. Organski kriogel pripremljen je solgel tehnologijom uz naknadno sušenje postupkom zamrzavanja, dok je karbonizacija
organskog kriogela vršena u inertnoj atmosferi argona na temperaturi od 800 o
C [2]. U
cilju poboljšanja adsorpcionih karakteristika karbon kriogela, izvršeno je hemijsko
modifikovanje korišćenjem 5 M HNO3
. Karakterizacija materijala izvršena je merenjem
specifične površine BET metodom, određivanjem tačke nultog naelektrisanja metodom
masene titracije, kao i određivanjem vrsta funkcionalnih grupa prisutnih na površini
materijala, metodom infracrvene spektroskopije sa Furijeovom transformacijom (FTIR).
Ispitan je uticaj pH vrednosti rastvora, početne koncentracije jona metala u rastvoru, kao i
vremena kontakta na adsorpciju teških metala uzorcima karbon kriogela.Primenjenom hemijskom modifikacijom karbon kriogela ne dolazi do bitnijih
promena u specifičnoj površini i poroznosti materijala. S druge strane, ovim postupkom
dolazi do izmene površinske hemije materijala, uvođenjem novih, i povećanjem broja
postojećih kiselih površinskih grupa, što je pokazano FTIR analizom i smanjenjem
vrednosti tačke nultog naelektrisanja sa pHPZC = 9,3 na pHPZC = 3,1. Adsorpcija jona teških
metala na modifikovanom i nemodifikovanom karbon kriogelu vršena je na pH = 6, jer pri
ovoj pH vrednosti materijali pokazuju najveći adsorpcioni kapacitet, a ujedno je izborom
ove pH izbegnuta precipitacija hidroksida metala. Izmene u hemiji površine dovode i do
izmena adsorpcionih karakteristika karbon kriogela. Kako površinske grupe predstavljaju
aktivna mesta za adsorpciju jona teških metala, povećanje količine površinskih grupa kod
modifikovanog karbon kriogela dovodi do višestrukog povećanja adsorpcionog kapaciteta.
PB  - Belgrade : Serbian Chemical Society
C3  - ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
T1  - Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode
T1  - Carbon cryogel as an adsorbent for removal of Cd(II), Zn(II) and Ni(II) ions from water
SP  - 85
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11032
ER  - 

@conference{
author = "Vukčević, Marija and Maletić, Marina and Kalijadis, Ana and Babić, Biljana and Đurkić, Tatjana and Laušević, Mila",
year = "2018",
abstract = "Zagađenje vodenih tokova teškim metalima je jedan od najakutnijih ekoloških
problema današnjice. S obzirom na to da teški metali nisu biorazgradivi, oni se akumuliraju
u životnoj sredini i na taj način ulaze u lanac ishrane ljudi i životinja, pa kao veoma toksične
materije, mogu izazivati niz opasnih i često neizlečivih bolesti. Iz tog razloga, istraživači
godinama u nazad razvijaju nove i usavršavaju postojeće tehnike za prečišćavanje otpadnih
voda od ovih zagađujućih materija [1]. Za prečišćavanje vode zagađene teškim metalima
mogu se koristiti različite metode: hemijska precipitacija, elektrohemijski tretmani, filtracija,
reverzna osmoza, jonska izmena, membranski procesi, adsorpcija. Jedna od najčešće
korišćenih je adsorpcija, koja zbog mogućnosti regenerisanja adsorbenta, odgovarajućim
desorpcionim procesom, predstavlja veoma efektivnu i ekonomičnu metodu. Zahvaljujući
razvijenoj specifičnoj površini i poroznosti, kao i prisustvu funkcionalnih grupa na površini,
različiti ugljenični materijali pokazuju visoku efikasnost u uklanjanju teških metala iz
vode. Karbon kriogel (CC) predstavlja ugljenični materijal razvijene mezoporoznosti čije
se adsorpcione karakteristike mogu poboljšati optimizacijom i kontrolisanjem parametara
dobijanja. U ovom radu je ispitana mogućnost uklanjanja jona teških metala (Cd2+, Ni2+ i
Zn2+) iz vode, korišćenjem karbon kriogela i hemijski modifikovanog karbon kriogela.
Prvi korak u sintezi karbon kriogela je polikondenzacija rezorcinola i formaldehida,
u prisustvu natrijum-karbonata kao katalizatora. Organski kriogel pripremljen je solgel tehnologijom uz naknadno sušenje postupkom zamrzavanja, dok je karbonizacija
organskog kriogela vršena u inertnoj atmosferi argona na temperaturi od 800 o
C [2]. U
cilju poboljšanja adsorpcionih karakteristika karbon kriogela, izvršeno je hemijsko
modifikovanje korišćenjem 5 M HNO3
. Karakterizacija materijala izvršena je merenjem
specifične površine BET metodom, određivanjem tačke nultog naelektrisanja metodom
masene titracije, kao i određivanjem vrsta funkcionalnih grupa prisutnih na površini
materijala, metodom infracrvene spektroskopije sa Furijeovom transformacijom (FTIR).
Ispitan je uticaj pH vrednosti rastvora, početne koncentracije jona metala u rastvoru, kao i
vremena kontakta na adsorpciju teških metala uzorcima karbon kriogela.Primenjenom hemijskom modifikacijom karbon kriogela ne dolazi do bitnijih
promena u specifičnoj površini i poroznosti materijala. S druge strane, ovim postupkom
dolazi do izmene površinske hemije materijala, uvođenjem novih, i povećanjem broja
postojećih kiselih površinskih grupa, što je pokazano FTIR analizom i smanjenjem
vrednosti tačke nultog naelektrisanja sa pHPZC = 9,3 na pHPZC = 3,1. Adsorpcija jona teških
metala na modifikovanom i nemodifikovanom karbon kriogelu vršena je na pH = 6, jer pri
ovoj pH vrednosti materijali pokazuju najveći adsorpcioni kapacitet, a ujedno je izborom
ove pH izbegnuta precipitacija hidroksida metala. Izmene u hemiji površine dovode i do
izmena adsorpcionih karakteristika karbon kriogela. Kako površinske grupe predstavljaju
aktivna mesta za adsorpciju jona teških metala, povećanje količine površinskih grupa kod
modifikovanog karbon kriogela dovodi do višestrukog povećanja adsorpcionog kapaciteta.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts",
title = "Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode, Carbon cryogel as an adsorbent for removal of Cd(II), Zn(II) and Ni(II) ions from water",
pages = "85-86",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11032"
}

Vukčević, M., Maletić, M., Kalijadis, A., Babić, B., Đurkić, T.,& Laušević, M.. (2018). Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
Belgrade : Serbian Chemical Society., 85-86.
https://hdl.handle.net/21.15107/rcub_vinar_11032

Vukčević M, Maletić M, Kalijadis A, Babić B, Đurkić T, Laušević M. Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts. 2018;:85-86.
https://hdl.handle.net/21.15107/rcub_vinar_11032 .

Vukčević, Marija, Maletić, Marina, Kalijadis, Ana, Babić, Biljana, Đurkić, Tatjana, Laušević, Mila, "Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode" in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts (2018):85-86,
https://hdl.handle.net/21.15107/rcub_vinar_11032 .

TY  - JOUR
AU  - Zdolšek, Nikola
AU  - Kumrić, Ksenija
AU  - Kalijadis, Ana
AU  - Trtić-Petrović, Tatjana M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1527
AB  - A sensitive method for the determination of six varying polarity pesticides (imidacloprid, acetamiprid, carbendazim, simazine, linuron, and tebufenozide) based on a solid-phase extraction disk with multiwalled nanotubes is proposed. A dispersion of multiwalled nanotubes in a surfactant aqueous solution (Triton X-100) was used for the preparation of the solid-phase extraction disk. The effect of surfactant on the functional groups of multiwalled nanotubes was examined by applying temperature-programmed desorption. It was found that this treatment increased the amount of oxygen groups of treated multiwalled nanotubes comparing with untreated ones. The factors that may influence the adsorption and recovery such as the kind and volume of eluent, volume, flow rate and pH of sample were investigated and optimized. Under the optimized conditions, the maximal enrichment factors for low polar pesticides are ranging from 4000 to 4985 and for more polar are 2250 and 2750. The linear range of calibration curves was 10-500 ng/L with correlation coefficient higher than 0.9960, and the detection limit was 6.2-23.7 ng/L. Finally optimized method was applied for determination trace level of five out of six pesticides in tap and river water samples with good recovery.
T2  - Journal of Separation Science
T1  - Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples
VL  - 40
IS  - 7
SP  - 1564
EP  - 1571
DO  - 10.1002/jssc.201600957
ER  - 

@article{
author = "Zdolšek, Nikola and Kumrić, Ksenija and Kalijadis, Ana and Trtić-Petrović, Tatjana M.",
year = "2017",
abstract = "A sensitive method for the determination of six varying polarity pesticides (imidacloprid, acetamiprid, carbendazim, simazine, linuron, and tebufenozide) based on a solid-phase extraction disk with multiwalled nanotubes is proposed. A dispersion of multiwalled nanotubes in a surfactant aqueous solution (Triton X-100) was used for the preparation of the solid-phase extraction disk. The effect of surfactant on the functional groups of multiwalled nanotubes was examined by applying temperature-programmed desorption. It was found that this treatment increased the amount of oxygen groups of treated multiwalled nanotubes comparing with untreated ones. The factors that may influence the adsorption and recovery such as the kind and volume of eluent, volume, flow rate and pH of sample were investigated and optimized. Under the optimized conditions, the maximal enrichment factors for low polar pesticides are ranging from 4000 to 4985 and for more polar are 2250 and 2750. The linear range of calibration curves was 10-500 ng/L with correlation coefficient higher than 0.9960, and the detection limit was 6.2-23.7 ng/L. Finally optimized method was applied for determination trace level of five out of six pesticides in tap and river water samples with good recovery.",
journal = "Journal of Separation Science",
title = "Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples",
volume = "40",
number = "7",
pages = "1564-1571",
doi = "10.1002/jssc.201600957"
}

Zdolšek, N., Kumrić, K., Kalijadis, A.,& Trtić-Petrović, T. M.. (2017). Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples. in Journal of Separation Science, 40(7), 1564-1571.
https://doi.org/10.1002/jssc.201600957

Zdolšek N, Kumrić K, Kalijadis A, Trtić-Petrović TM. Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples. in Journal of Separation Science. 2017;40(7):1564-1571.
doi:10.1002/jssc.201600957 .

Zdolšek, Nikola, Kumrić, Ksenija, Kalijadis, Ana, Trtić-Petrović, Tatjana M., "Solid-phase extraction disk based on multiwalled carbon nanotubes for the enrichment of targeted pesticides from aqueous samples" in Journal of Separation Science, 40, no. 7 (2017):1564-1571,
https://doi.org/10.1002/jssc.201600957 . .

TY  - JOUR
AU  - Mijailović, Daniel M.
AU  - Vukčević, Marija M.
AU  - Stević, Zoran M.
AU  - Kalijadis, Ana
AU  - Stojanović, Dušica B.
AU  - Panić, Vladimir V.
AU  - Uskoković, Petar S.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1583
AB  - Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons. (C) 2017 The Electrochemical Society. All rights reserved.
T2  - Journal of the Electrochemical Society
T1  - Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers
VL  - 164
IS  - 6
SP  - A1061
EP  - A1068
DO  - 10.1149/2.0581706jes
ER  - 

@article{
author = "Mijailović, Daniel M. and Vukčević, Marija M. and Stević, Zoran M. and Kalijadis, Ana and Stojanović, Dušica B. and Panić, Vladimir V. and Uskoković, Petar S.",
year = "2017",
abstract = "Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons. (C) 2017 The Electrochemical Society. All rights reserved.",
journal = "Journal of the Electrochemical Society",
title = "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers",
volume = "164",
number = "6",
pages = "A1061-A1068",
doi = "10.1149/2.0581706jes"
}

Mijailović, D. M., Vukčević, M. M., Stević, Z. M., Kalijadis, A., Stojanović, D. B., Panić, V. V.,& Uskoković, P. S.. (2017). Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society, 164(6), A1061-A1068.
https://doi.org/10.1149/2.0581706jes

Mijailović DM, Vukčević MM, Stević ZM, Kalijadis A, Stojanović DB, Panić VV, Uskoković PS. Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society. 2017;164(6):A1061-A1068.
doi:10.1149/2.0581706jes .

Mijailović, Daniel M., Vukčević, Marija M., Stević, Zoran M., Kalijadis, Ana, Stojanović, Dušica B., Panić, Vladimir V., Uskoković, Petar S., "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers" in Journal of the Electrochemical Society, 164, no. 6 (2017):A1061-A1068,
https://doi.org/10.1149/2.0581706jes . .

TY  - JOUR
AU  - Lalović, Bojana
AU  - Durkić, Tatjana
AU  - Vukčević, Marija
AU  - Jankovic-Častvan, Ivona
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1707
AB  - In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.
T2  - Environmental Science and Pollution Research
T1  - Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS
VL  - 24
IS  - 25
SP  - 20784
EP  - 20793
DO  - 10.1007/s11356-017-9748-0
ER  - 

@article{
author = "Lalović, Bojana and Durkić, Tatjana and Vukčević, Marija and Jankovic-Častvan, Ivona and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila D.",
year = "2017",
abstract = "In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.",
journal = "Environmental Science and Pollution Research",
title = "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS",
volume = "24",
number = "25",
pages = "20784-20793",
doi = "10.1007/s11356-017-9748-0"
}

Lalović, B., Durkić, T., Vukčević, M., Jankovic-Častvan, I., Kalijadis, A., Laušević, Z.,& Laušević, M. D.. (2017). Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research, 24(25), 20784-20793.
https://doi.org/10.1007/s11356-017-9748-0

Lalović B, Durkić T, Vukčević M, Jankovic-Častvan I, Kalijadis A, Laušević Z, Laušević MD. Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research. 2017;24(25):20784-20793.
doi:10.1007/s11356-017-9748-0 .

Lalović, Bojana, Durkić, Tatjana, Vukčević, Marija, Jankovic-Častvan, Ivona, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila D., "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS" in Environmental Science and Pollution Research, 24, no. 25 (2017):20784-20793,
https://doi.org/10.1007/s11356-017-9748-0 . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Papp, Zsigmond
AU  - Jokić, Bojan M.
AU  - Spasojević, Vuk D.
AU  - Babić, Biljana M.
AU  - Trtić-Petrović, Tatjana M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1867
AB  - In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.
T2  - Journal of the Serbian Chemical Society
T1  - A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim
VL  - 82
IS  - 11
SP  - 1259
EP  - 1272
DO  - 10.2298/JSC161228053K
ER  - 

@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Papp, Zsigmond and Jokić, Bojan M. and Spasojević, Vuk D. and Babić, Biljana M. and Trtić-Petrović, Tatjana M.",
year = "2017",
abstract = "In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.",
journal = "Journal of the Serbian Chemical Society",
title = "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim",
volume = "82",
number = "11",
pages = "1259-1272",
doi = "10.2298/JSC161228053K"
}

Kalijadis, A., Đorđević, J. S., Papp, Z., Jokić, B. M., Spasojević, V. D., Babić, B. M.,& Trtić-Petrović, T. M.. (2017). A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society, 82(11), 1259-1272.
https://doi.org/10.2298/JSC161228053K

Kalijadis A, Đorđević JS, Papp Z, Jokić BM, Spasojević VD, Babić BM, Trtić-Petrović TM. A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society. 2017;82(11):1259-1272.
doi:10.2298/JSC161228053K .

Kalijadis, Ana, Đorđević, Jelena S., Papp, Zsigmond, Jokić, Bojan M., Spasojević, Vuk D., Babić, Biljana M., Trtić-Petrović, Tatjana M., "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim" in Journal of the Serbian Chemical Society, 82, no. 11 (2017):1259-1272,
https://doi.org/10.2298/JSC161228053K . .

TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Pejić, Biljana M.
AU  - Pajić-Lijaković, Ivana
AU  - Kalijadis, Ana
AU  - Kostić, Mirjana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1897
AB  - Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon
VL  - 82
IS  - 12
SP  - 1417
EP  - 1431
DO  - 10.2298/JSC170310080V
ER  - 

@article{
author = "Vukčević, Marija M. and Pejić, Biljana M. and Pajić-Lijaković, Ivana and Kalijadis, Ana and Kostić, Mirjana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2017",
abstract = "Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon",
volume = "82",
number = "12",
pages = "1417-1431",
doi = "10.2298/JSC170310080V"
}

Vukčević, M. M., Pejić, B. M., Pajić-Lijaković, I., Kalijadis, A., Kostić, M. M., Laušević, Z.,& Laušević, M. D.. (2017). Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society, 82(12), 1417-1431.
https://doi.org/10.2298/JSC170310080V

Vukčević MM, Pejić BM, Pajić-Lijaković I, Kalijadis A, Kostić MM, Laušević Z, Laušević MD. Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society. 2017;82(12):1417-1431.
doi:10.2298/JSC170310080V .

Vukčević, Marija M., Pejić, Biljana M., Pajić-Lijaković, Ivana, Kalijadis, Ana, Kostić, Mirjana M., Laušević, Zoran, Laušević, Mila D., "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1417-1431,
https://doi.org/10.2298/JSC170310080V . .

TY  - JOUR
AU  - Prekajski, Marija D.
AU  - Jokić, Bojan M.
AU  - Kalijadis, Ana
AU  - Maletaškić, Jelena
AU  - Stanković, Nadežda
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1328
AB  - Nanoemulsion technique, based on Ouzo effect, was applied for synthesis of the pure and silver doped (2.5 and 5 mol%) calcium hydroxyapatite (HAp). After calcination at 500 degrees C fully crystallized powders were obtained. X-ray powder diffraction analysis accompanied with Rietveld refinement revealed that the synthesized powders were single-phase hydroxyapatite. Raman spectroscopy also confirmed that the synthesized powders were single-phase. The obtained HAp particles were spherical in shape and their sizes were in the nanometer range which was revealed by field emission scanning electron microscopy analysis (FESEM). The successful synthesis of the single-phase Ag doped HAp showed that nanoemulsion method is a simple technique for obtaining pure and doped hydroxyapatite nanospheres.
T2  - Processing and Application of Ceramics
T1  - Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect
VL  - 10
IS  - 3
SP  - 169
EP  - 174
DO  - 10.2298/PAC1603169P
ER  - 

@article{
author = "Prekajski, Marija D. and Jokić, Bojan M. and Kalijadis, Ana and Maletaškić, Jelena and Stanković, Nadežda and Luković, Jelena M. and Matović, Branko",
year = "2016",
abstract = "Nanoemulsion technique, based on Ouzo effect, was applied for synthesis of the pure and silver doped (2.5 and 5 mol%) calcium hydroxyapatite (HAp). After calcination at 500 degrees C fully crystallized powders were obtained. X-ray powder diffraction analysis accompanied with Rietveld refinement revealed that the synthesized powders were single-phase hydroxyapatite. Raman spectroscopy also confirmed that the synthesized powders were single-phase. The obtained HAp particles were spherical in shape and their sizes were in the nanometer range which was revealed by field emission scanning electron microscopy analysis (FESEM). The successful synthesis of the single-phase Ag doped HAp showed that nanoemulsion method is a simple technique for obtaining pure and doped hydroxyapatite nanospheres.",
journal = "Processing and Application of Ceramics",
title = "Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect",
volume = "10",
number = "3",
pages = "169-174",
doi = "10.2298/PAC1603169P"
}

Prekajski, M. D., Jokić, B. M., Kalijadis, A., Maletaškić, J., Stanković, N., Luković, J. M.,& Matović, B.. (2016). Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect. in Processing and Application of Ceramics, 10(3), 169-174.
https://doi.org/10.2298/PAC1603169P

Prekajski MD, Jokić BM, Kalijadis A, Maletaškić J, Stanković N, Luković JM, Matović B. Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect. in Processing and Application of Ceramics. 2016;10(3):169-174.
doi:10.2298/PAC1603169P .

Prekajski, Marija D., Jokić, Bojan M., Kalijadis, Ana, Maletaškić, Jelena, Stanković, Nadežda, Luković, Jelena M., Matović, Branko, "Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect" in Processing and Application of Ceramics, 10, no. 3 (2016):169-174,
https://doi.org/10.2298/PAC1603169P . .

TY  - CONF
AU  - Maletić, Marina
AU  - Vukčević, Mira
AU  - Kalijadis, Ana
AU  - Janković-Častvan, Ivona
AU  - Dapčević, Aleksandra
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9172
AB  - TiO2/carbon    composite    (TiO2/HTC),    synthesized    by    hydrothermal carbonization,  was  characterized  by  thermogravimetric  analysis,  nitrogen adsorption–desorption  isotherms  and  X-ray  diffraction.  The  possibility  of using   TiO2/HTC   as   photocatalysts   for   UV   and   visible   light   assisted degradation  of  methylene  blue  inaqueous  solution  was  examined.  It  was found  that  carbon  presence  in  TiO2/HTC  leads  to  the  higher  porosity  and increase in the share of photocatalytically active anatase phase. Compared to the   hydrothermally   synthesized   TiO2,   TiO2/HTC   showed   the   superior photocatalytic  activity  under  UV  irradiation.  In  addition,  TiO2/HTC  show high  recycling  ability  with  degradation  ratio  of  methylene  blue  higher  than 81%  after  five  cycles.  Also,  TiO2/HTC  is  expected  to  be  a  promising candidate for photocatalytic processes using visible light.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite
SP  - C-12-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9172
ER  - 

@conference{
author = "Maletić, Marina and Vukčević, Mira and Kalijadis, Ana and Janković-Častvan, Ivona and Dapčević, Aleksandra and Laušević, Zoran and Laušević, Mila",
year = "2016",
abstract = "TiO2/carbon    composite    (TiO2/HTC),    synthesized    by    hydrothermal carbonization,  was  characterized  by  thermogravimetric  analysis,  nitrogen adsorption–desorption  isotherms  and  X-ray  diffraction.  The  possibility  of using   TiO2/HTC   as   photocatalysts   for   UV   and   visible   light   assisted degradation  of  methylene  blue  inaqueous  solution  was  examined.  It  was found  that  carbon  presence  in  TiO2/HTC  leads  to  the  higher  porosity  and increase in the share of photocatalytically active anatase phase. Compared to the   hydrothermally   synthesized   TiO2,   TiO2/HTC   showed   the   superior photocatalytic  activity  under  UV  irradiation.  In  addition,  TiO2/HTC  show high  recycling  ability  with  degradation  ratio  of  methylene  blue  higher  than 81%  after  five  cycles.  Also,  TiO2/HTC  is  expected  to  be  a  promising candidate for photocatalytic processes using visible light.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite",
pages = "C-12-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9172"
}

Maletić, M., Vukčević, M., Kalijadis, A., Janković-Častvan, I., Dapčević, A., Laušević, Z.,& Laušević, M.. (2016). One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., C-12-P.
https://hdl.handle.net/21.15107/rcub_vinar_9172

Maletić M, Vukčević M, Kalijadis A, Janković-Častvan I, Dapčević A, Laušević Z, Laušević M. One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:C-12-P.
https://hdl.handle.net/21.15107/rcub_vinar_9172 .

Maletić, Marina, Vukčević, Mira, Kalijadis, Ana, Janković-Častvan, Ivona, Dapčević, Aleksandra, Laušević, Zoran, Laušević, Mila, "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):C-12-P,
https://hdl.handle.net/21.15107/rcub_vinar_9172 .

TY  - JOUR
AU  - Minović-Arsić, Tamara
AU  - Kalijadis, Ana
AU  - Matović, Branko
AU  - Stoiljković, Milovan
AU  - Pantić, Jelena R.
AU  - Jovanović, Jovan
AU  - Petrović, Rada
AU  - Jokić, Bojan M.
AU  - Babić, Biljana M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1171
AB  - Carbon cryogel/ceria composite, with 10 wt.% of ceria, was synthesized by mixing of ceria and carbon cryogel (CC). The sample was characterized by field emission scanning electron microscopy, nitrogen adsorption and X-ray diffraction. The adsorption of arsenic(III) ions from aqueous solutions on carbon cryogel/ceria nanocomposite was studied as a function of time, solution pH and As(III) ion concentration. The results are correlated with previous investigations of adsorption mechanism of arsenic(III) on carbon cryogel. Adsorption dose experiments showed that the mass of the adsorbent was reduced for 20 times, in comparison with pure CC, for the same amount of adsorbed arsenic(III) ions. BET isotherm was used to interpret the experimental data for modelling liquid phase adsorption.
T2  - Processing and Application of Ceramics
T1  - Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite
VL  - 10
IS  - 1
SP  - 17
EP  - 23
DO  - 10.2298/PAC1601017M
ER  - 

@article{
author = "Minović-Arsić, Tamara and Kalijadis, Ana and Matović, Branko and Stoiljković, Milovan and Pantić, Jelena R. and Jovanović, Jovan and Petrović, Rada and Jokić, Bojan M. and Babić, Biljana M.",
year = "2016",
abstract = "Carbon cryogel/ceria composite, with 10 wt.% of ceria, was synthesized by mixing of ceria and carbon cryogel (CC). The sample was characterized by field emission scanning electron microscopy, nitrogen adsorption and X-ray diffraction. The adsorption of arsenic(III) ions from aqueous solutions on carbon cryogel/ceria nanocomposite was studied as a function of time, solution pH and As(III) ion concentration. The results are correlated with previous investigations of adsorption mechanism of arsenic(III) on carbon cryogel. Adsorption dose experiments showed that the mass of the adsorbent was reduced for 20 times, in comparison with pure CC, for the same amount of adsorbed arsenic(III) ions. BET isotherm was used to interpret the experimental data for modelling liquid phase adsorption.",
journal = "Processing and Application of Ceramics",
title = "Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite",
volume = "10",
number = "1",
pages = "17-23",
doi = "10.2298/PAC1601017M"
}

Minović-Arsić, T., Kalijadis, A., Matović, B., Stoiljković, M., Pantić, J. R., Jovanović, J., Petrović, R., Jokić, B. M.,& Babić, B. M.. (2016). Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite. in Processing and Application of Ceramics, 10(1), 17-23.
https://doi.org/10.2298/PAC1601017M

Minović-Arsić T, Kalijadis A, Matović B, Stoiljković M, Pantić JR, Jovanović J, Petrović R, Jokić BM, Babić BM. Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite. in Processing and Application of Ceramics. 2016;10(1):17-23.
doi:10.2298/PAC1601017M .

Minović-Arsić, Tamara, Kalijadis, Ana, Matović, Branko, Stoiljković, Milovan, Pantić, Jelena R., Jovanović, Jovan, Petrović, Rada, Jokić, Bojan M., Babić, Biljana M., "Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite" in Processing and Application of Ceramics, 10, no. 1 (2016):17-23,
https://doi.org/10.2298/PAC1601017M . .

TY  - JOUR
AU  - Dobrota, Ana S.
AU  - Gutić, Sanjin J.
AU  - Kalijadis, Ana
AU  - Baljozović, Miloš
AU  - Mentus, Slavko V.
AU  - Skorodumova, Natalia V.
AU  - Pašti, Igor A.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1155
AB  - Graphene synthesized by reduction of graphene oxide, depending on the degree of reduction, retains a certain amount of surface OH groups. Considering the surface OH groups/graphene layer system by means of density functional theory calculations, we evidenced the tendency of OH groups to cluster, resulting in enhanced system stability and no band gap opening. In the oxygen concentration range between 1.8 and 8.47 at%, with the addition of each new OH group, integral binding energy decreases, while differential binding energy shows the boost at even numbers of OH groups. Furthermore, we found that the clustering of OH groups over graphene basal plane plays a crucial role in enhancing the interactions with alkali metals. Namely, if alkali metal atoms interact with individual OH groups only, the interaction leads to an irreversible formation of MOH phase. When alkali atoms interact with clusters containing odd number of OH groups, a reversible transfer of an electron charge from the metal atom to the substrate takes place without OH removal. The strength of the interaction in general increases from Li to K. In an experimental investigation of a graphene sample which dominantly contains OH groups, we have shown that the trend in the specific interaction strength reflects to gravimetric capacitances measured in alkali metal chloride solutions. We propose that the charge stored in OH groups which interact with alkali metal cation and the pi electronic system of the graphene basal plane presents the main part of its pseudocapacitance.
T2  - RSC Advances
T1  - Stabilization of alkali metal ions interaction with OH-functionalized graphene via clustering of OH groups - implications in charge storage applications
VL  - 6
IS  - 63
SP  - 57910
EP  - 57919
DO  - 10.1039/c6ra13509a
ER  - 

@article{
author = "Dobrota, Ana S. and Gutić, Sanjin J. and Kalijadis, Ana and Baljozović, Miloš and Mentus, Slavko V. and Skorodumova, Natalia V. and Pašti, Igor A.",
year = "2016",
abstract = "Graphene synthesized by reduction of graphene oxide, depending on the degree of reduction, retains a certain amount of surface OH groups. Considering the surface OH groups/graphene layer system by means of density functional theory calculations, we evidenced the tendency of OH groups to cluster, resulting in enhanced system stability and no band gap opening. In the oxygen concentration range between 1.8 and 8.47 at%, with the addition of each new OH group, integral binding energy decreases, while differential binding energy shows the boost at even numbers of OH groups. Furthermore, we found that the clustering of OH groups over graphene basal plane plays a crucial role in enhancing the interactions with alkali metals. Namely, if alkali metal atoms interact with individual OH groups only, the interaction leads to an irreversible formation of MOH phase. When alkali atoms interact with clusters containing odd number of OH groups, a reversible transfer of an electron charge from the metal atom to the substrate takes place without OH removal. The strength of the interaction in general increases from Li to K. In an experimental investigation of a graphene sample which dominantly contains OH groups, we have shown that the trend in the specific interaction strength reflects to gravimetric capacitances measured in alkali metal chloride solutions. We propose that the charge stored in OH groups which interact with alkali metal cation and the pi electronic system of the graphene basal plane presents the main part of its pseudocapacitance.",
journal = "RSC Advances",
title = "Stabilization of alkali metal ions interaction with OH-functionalized graphene via clustering of OH groups - implications in charge storage applications",
volume = "6",
number = "63",
pages = "57910-57919",
doi = "10.1039/c6ra13509a"
}

Dobrota, A. S., Gutić, S. J., Kalijadis, A., Baljozović, M., Mentus, S. V., Skorodumova, N. V.,& Pašti, I. A.. (2016). Stabilization of alkali metal ions interaction with OH-functionalized graphene via clustering of OH groups - implications in charge storage applications. in RSC Advances, 6(63), 57910-57919.
https://doi.org/10.1039/c6ra13509a

Dobrota AS, Gutić SJ, Kalijadis A, Baljozović M, Mentus SV, Skorodumova NV, Pašti IA. Stabilization of alkali metal ions interaction with OH-functionalized graphene via clustering of OH groups - implications in charge storage applications. in RSC Advances. 2016;6(63):57910-57919.
doi:10.1039/c6ra13509a .

Dobrota, Ana S., Gutić, Sanjin J., Kalijadis, Ana, Baljozović, Miloš, Mentus, Slavko V., Skorodumova, Natalia V., Pašti, Igor A., "Stabilization of alkali metal ions interaction with OH-functionalized graphene via clustering of OH groups - implications in charge storage applications" in RSC Advances, 6, no. 63 (2016):57910-57919,
https://doi.org/10.1039/c6ra13509a . .

TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Kalijadis, Ana
AU  - Vasiljevic, Tatjana M.
AU  - Babić, Biljana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/621
AB  - The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification. (C) 2015 Elsevier Inc. All rights reserved.
T2  - Microporous and Mesoporous Materials
T1  - Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption
VL  - 214
SP  - 156
EP  - 165
DO  - 10.1016/j.micromeso.2015.05.012
ER  - 

@article{
author = "Vukčević, Marija M. and Kalijadis, Ana and Vasiljevic, Tatjana M. and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2015",
abstract = "The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification. (C) 2015 Elsevier Inc. All rights reserved.",
journal = "Microporous and Mesoporous Materials",
title = "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption",
volume = "214",
pages = "156-165",
doi = "10.1016/j.micromeso.2015.05.012"
}

Vukčević, M. M., Kalijadis, A., Vasiljevic, T. M., Babić, B. M., Laušević, Z.,& Laušević, M. D.. (2015). Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials, 214, 156-165.
https://doi.org/10.1016/j.micromeso.2015.05.012

Vukčević MM, Kalijadis A, Vasiljevic TM, Babić BM, Laušević Z, Laušević MD. Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials. 2015;214:156-165.
doi:10.1016/j.micromeso.2015.05.012 .

Vukčević, Marija M., Kalijadis, Ana, Vasiljevic, Tatjana M., Babić, Biljana M., Laušević, Zoran, Laušević, Mila D., "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption" in Microporous and Mesoporous Materials, 214 (2015):156-165,
https://doi.org/10.1016/j.micromeso.2015.05.012 . .

TY  - JOUR
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/641
AB  - The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.
T2  - Advances in Materials Science and Engineering
T1  - Photocatalytic Performance of Carbon Monolith/TiO2 Composite
DO  - 10.1155/2015/803492
ER  - 

@article{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila D.",
year = "2015",
abstract = "The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.",
journal = "Advances in Materials Science and Engineering",
title = "Photocatalytic Performance of Carbon Monolith/TiO2 Composite",
doi = "10.1155/2015/803492"
}

Maletić, M., Vukčević, M., Kalijadis, A., Laušević, Z.,& Laušević, M. D.. (2015). Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering.
https://doi.org/10.1155/2015/803492

Maletić M, Vukčević M, Kalijadis A, Laušević Z, Laušević MD. Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering. 2015;.
doi:10.1155/2015/803492 .

Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila D., "Photocatalytic Performance of Carbon Monolith/TiO2 Composite" in Advances in Materials Science and Engineering (2015),
https://doi.org/10.1155/2015/803492 . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Trtić-Petrović, Tatjana M.
AU  - Vukčević, Marija
AU  - Popović, Maja
AU  - Maksimović, Vesna
AU  - Rakočević, Zlatko Lj.
AU  - Laušević, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/781
AB  - Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Carbon
T1  - Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode
VL  - 95
SP  - 42
EP  - 50
DO  - 10.1016/j.carbon.2015.08.016
ER  - 

@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Trtić-Petrović, Tatjana M. and Vukčević, Marija and Popović, Maja and Maksimović, Vesna and Rakočević, Zlatko Lj. and Laušević, Zoran",
year = "2015",
abstract = "Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Carbon",
title = "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode",
volume = "95",
pages = "42-50",
doi = "10.1016/j.carbon.2015.08.016"
}

Kalijadis, A., Đorđević, J. S., Trtić-Petrović, T. M., Vukčević, M., Popović, M., Maksimović, V., Rakočević, Z. Lj.,& Laušević, Z.. (2015). Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon, 95, 42-50.
https://doi.org/10.1016/j.carbon.2015.08.016

Kalijadis A, Đorđević JS, Trtić-Petrović TM, Vukčević M, Popović M, Maksimović V, Rakočević ZL, Laušević Z. Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon. 2015;95:42-50.
doi:10.1016/j.carbon.2015.08.016 .

Kalijadis, Ana, Đorđević, Jelena S., Trtić-Petrović, Tatjana M., Vukčević, Marija, Popović, Maja, Maksimović, Vesna, Rakočević, Zlatko Lj., Laušević, Zoran, "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode" in Carbon, 95 (2015):42-50,
https://doi.org/10.1016/j.carbon.2015.08.016 . .