TY  - JOUR
AU  - Maletić, Marina M.
AU  - Kalijadis, Ana M.
AU  - Lazović, Vladimir
AU  - Trifunović, Snežana
AU  - Babić, Biljana M.
AU  - Dapčević, Aleksandra
AU  - Kovač, Janez
AU  - Vukčević, Marija M.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5963
AB  - 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.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of N doping on structural and photocatalytic properties of hydrothermally synthesized TiO2/carbon composites
EP  - 197
IS  - 2
SP  - 183
VL  - 88
DO  - 10.2298/JSC220608079M
ER  - 

@article{
author = "Maletić, Marina M. and Kalijadis, Ana M. and Lazović, Vladimir and Trifunović, Snežana and Babić, Biljana M. and Dapčević, Aleksandra and Kovač, Janez and Vukčević, Marija M.",
year = "2023",
abstract = "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",
pages = "197-183",
number = "2",
volume = "88",
doi = "10.2298/JSC220608079M"
}

Maletić, M. M., Kalijadis, A. M., Lazović, V., Trifunović, S., Babić, B. M., Dapčević, A., Kovač, J.,& Vukčević, M. 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 MM, Kalijadis AM, Lazović V, Trifunović S, Babić BM, Dapčević A, Kovač J, Vukčević MM. 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 M., Kalijadis, Ana M., Lazović, Vladimir, Trifunović, Snežana, Babić, Biljana M., Dapčević, Aleksandra, Kovač, Janez, Vukčević, Marija M., "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  - Kalijadis, Ana
AU  - Maletić, Marina M.
AU  - Bjelajac, Anđelika Z.
AU  - Babić, Biljana M.
AU  - Minović Arsić, Tamara Z.
AU  - Vukčević, Marija M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5170
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
EP  - 760
IS  - 6
SP  - 749
VL  - 87
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 Z. 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",
pages = "760-749",
number = "6",
volume = "87",
doi = "10.2298/JSC211011001K"
}

Kalijadis, A., Maletić, M. M., Bjelajac, A. Z., Babić, B. M., Minović Arsić, T. Z.,& 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 TZ, 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 Z., 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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6056
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 %.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)
C3  - Međunarodni kongres o procesnoj industriji
T1  - Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta
IS  - 1
SP  - 123
SP  - 127
VL  - 34
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 %.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)",
journal = "Međunarodni kongres o procesnoj industriji",
title = "Ekstrakcija estrogenih hormona iz vode korišćenjem ugljeničnog kriogela kao sorbenta",
number = "1",
pages = "123-127",
volume = "34",
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 Međunarodni kongres o procesnoj industriji
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS)., 34(1), 123.
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 Međunarodni kongres o procesnoj industriji. 2021;34(1):123.
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 Međunarodni kongres o procesnoj industriji, 34, no. 1 (2021):123,
https://doi.org/10.24094/ptk.021.34.1.123 . .

TY  - CONF
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Prokić, Danijela
AU  - Kalijadis, Ana
AU  - Babić, Biljana M.
AU  - Đurkić, Tatjana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6068
AB  - Prisustvo estrogenih hormona u vodenim ekosistemima posledica je ispuštanja
neprečišćenih otpadnih komunalnih voda, kao i nemogućnost potpunog uklanjanja estrogenih
hormona u postrojenjima za prečišćavanje otpadnih voda. Budući da prisustvo estrogenih hormona
u životnoj sredini, čak i u veoma niskim koncentracijama, može imati negativan uticaj na endokrini
sistem ljudi i životinja, u ovom radu je praćeno prisustvo estrona, 17β-estradiola i 17α-
etinilestradiola u uzorcima podzemnih, površinskih i otpadnih voda, prikupljenih sa područja
Beograda, Novog Sada, Velike Morave i Peka. Određivanje koncentracije hormona u pomenutim
uzorcima voda vršeno je metodom tečne hromatografije u sprezi sa tandem masenom
spektrometrijom (LC-MS/MS). Kako su estrogeni hormoni obično prisutni u veoma niskim
koncentracijama u uzorcima vode iz životne sredine, pre analize je potrebno izvršiti njihovo
izolovanje i koncentrisanje. Predkoncentrisanje hormona vršeno je primenom prethodno
optimizovane metode ekstrakcije na čvrstoj fazi, uz korišćenje modifikovanog ugljeničnog kriogela
kao sorbenta. Kod svih ispitivanih uzoraka vode potvrđeno je prisustvo bar jednog od ispitivanih
hormona. Najviše koncentracije hormona zabeležene su u uzorcima otpadnih voda, kao što je i
očekivano, ali su ispitivani hormoni detektovani i u uzorcima površinskih i podzemnih voda.
PB  - Akademija tehničkih strukovnih studija Beograd
C3  - 6. naučno-stručni skup Politehnika
T1  - Analiza estrogenih hormona iz uzoraka površinskih, podzemnih i otpadnih voda
EP  - 54
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6068
ER  - 

@conference{
author = "Maletić, Marina and Vukčević, Marija and Prokić, Danijela and Kalijadis, Ana and Babić, Biljana M. and Đurkić, Tatjana",
year = "2021",
abstract = "Prisustvo estrogenih hormona u vodenim ekosistemima posledica je ispuštanja
neprečišćenih otpadnih komunalnih voda, kao i nemogućnost potpunog uklanjanja estrogenih
hormona u postrojenjima za prečišćavanje otpadnih voda. Budući da prisustvo estrogenih hormona
u životnoj sredini, čak i u veoma niskim koncentracijama, može imati negativan uticaj na endokrini
sistem ljudi i životinja, u ovom radu je praćeno prisustvo estrona, 17β-estradiola i 17α-
etinilestradiola u uzorcima podzemnih, površinskih i otpadnih voda, prikupljenih sa područja
Beograda, Novog Sada, Velike Morave i Peka. Određivanje koncentracije hormona u pomenutim
uzorcima voda vršeno je metodom tečne hromatografije u sprezi sa tandem masenom
spektrometrijom (LC-MS/MS). Kako su estrogeni hormoni obično prisutni u veoma niskim
koncentracijama u uzorcima vode iz životne sredine, pre analize je potrebno izvršiti njihovo
izolovanje i koncentrisanje. Predkoncentrisanje hormona vršeno je primenom prethodno
optimizovane metode ekstrakcije na čvrstoj fazi, uz korišćenje modifikovanog ugljeničnog kriogela
kao sorbenta. Kod svih ispitivanih uzoraka vode potvrđeno je prisustvo bar jednog od ispitivanih
hormona. Najviše koncentracije hormona zabeležene su u uzorcima otpadnih voda, kao što je i
očekivano, ali su ispitivani hormoni detektovani i u uzorcima površinskih i podzemnih voda.",
publisher = "Akademija tehničkih strukovnih studija Beograd",
journal = "6. naučno-stručni skup Politehnika",
title = "Analiza estrogenih hormona iz uzoraka površinskih, podzemnih i otpadnih voda",
pages = "54-49",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6068"
}

Maletić, M., Vukčević, M., Prokić, D., Kalijadis, A., Babić, B. M.,& Đurkić, T.. (2021). Analiza estrogenih hormona iz uzoraka površinskih, podzemnih i otpadnih voda. in 6. naučno-stručni skup Politehnika
Akademija tehničkih strukovnih studija Beograd., 49-54.
https://hdl.handle.net/21.15107/rcub_technorep_6068

Maletić M, Vukčević M, Prokić D, Kalijadis A, Babić BM, Đurkić T. Analiza estrogenih hormona iz uzoraka površinskih, podzemnih i otpadnih voda. in 6. naučno-stručni skup Politehnika. 2021;:49-54.
https://hdl.handle.net/21.15107/rcub_technorep_6068 .

Maletić, Marina, Vukčević, Marija, Prokić, Danijela, Kalijadis, Ana, Babić, Biljana M., Đurkić, Tatjana, "Analiza estrogenih hormona iz uzoraka površinskih, podzemnih i otpadnih voda" in 6. naučno-stručni skup Politehnika (2021):49-54,
https://hdl.handle.net/21.15107/rcub_technorep_6068 .

TY  - JOUR
AU  - Prokić, Danijela
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Maletić, Marina
AU  - Babić, Biljana M.
AU  - Đurkić, Tatjana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4450
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, 17 beta-Estradiol, and 17 alpha-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths
EP  - 2274
IS  - 10
SP  - 2263
VL  - 21
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, 17 beta-Estradiol, and 17 alpha-Ethinylestradiol from Water by Adsorption onto Chemically Modified Activated Carbon Cloths",
pages = "2274-2263",
number = "10",
volume = "21",
doi = "10.1007/s12221-020-9758-2"
}

Prokić, D., Vukčević, M., Kalijadis, A., Maletić, M., Babić, B. M.,& Đurkić, T.. (2020). Removal of Estrone, 17 beta-Estradiol, and 17 alpha-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, 17 beta-Estradiol, and 17 alpha-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, 17 beta-Estradiol, and 17 alpha-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  - 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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5887
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
SP  - 122120
VL  - 239
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",
pages = "122120",
volume = "239",
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  - Ilić, Svetlana M.
AU  - Babić, Biljana M.
AU  - Bjelajac, Anđelika
AU  - Stoimenov, Nikolay
AU  - Kljajević, Ljiljana M.
AU  - Pošarac-Marković, Milica B.
AU  - Matović, Branko
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4515
AB  - The structural and morphological properties of iron-doped mullite powders are the subject of the present study. The powders of undoped and iron-doped mullite in the composition range of 3-15 wt% Fe2O3 were synthesized by a combination of sol-gel and combustion methods. The excess of water and urea were introduced in reaction solutions to enhance the copolymerization of aluminum and silicon species. The results of structural characterization revealed that the synthesized mullite powders were amorphous of a hybrid type. The specific surface area of the undoped mullite powder was 262 m(2) g(-1) with a maximum pore radius (d(p)) of 2 nm classifying it into mesoporous materials. The addition of iron has reduced the specific surface area, while the pore size value remained the same except for the sample with 3 wt% Fe2O3 (S-BET = 278 m(2) g(-1); d(p) = 3 nm). The presence of iron caused lowering the temperature of liquid phase formation, while present urea combusted providing the increase of the temperature locally that caused the sintering and formation of agglomerates of smaller particles. However, the results of the particle size analysis are not straightforward. The values of mean volume diameter (D[3,4]) indicated that the particle size increased to 6 wt% Fe2O3 (123.6 mu m), and then decreased and for the sample with 12 wt% Fe2O3, it was equal to 96.6 mu m. Thus, the added iron contributed to the more uniform particle size distribution. The SEM analysis has also shown the coarse powder particles consisted of the coalesced smaller particles.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Structural and morphological characterization of iron-doped sol-gel derived mullite powders
EP  - 13113
IS  - 9
SP  - 13107
VL  - 46
DO  - 10.1016/j.ceramint.2020.02.083
ER  - 

@article{
author = "Ilić, Svetlana M. and Babić, Biljana M. and Bjelajac, Anđelika and Stoimenov, Nikolay and Kljajević, Ljiljana M. and Pošarac-Marković, Milica B. and Matović, Branko",
year = "2020",
abstract = "The structural and morphological properties of iron-doped mullite powders are the subject of the present study. The powders of undoped and iron-doped mullite in the composition range of 3-15 wt% Fe2O3 were synthesized by a combination of sol-gel and combustion methods. The excess of water and urea were introduced in reaction solutions to enhance the copolymerization of aluminum and silicon species. The results of structural characterization revealed that the synthesized mullite powders were amorphous of a hybrid type. The specific surface area of the undoped mullite powder was 262 m(2) g(-1) with a maximum pore radius (d(p)) of 2 nm classifying it into mesoporous materials. The addition of iron has reduced the specific surface area, while the pore size value remained the same except for the sample with 3 wt% Fe2O3 (S-BET = 278 m(2) g(-1); d(p) = 3 nm). The presence of iron caused lowering the temperature of liquid phase formation, while present urea combusted providing the increase of the temperature locally that caused the sintering and formation of agglomerates of smaller particles. However, the results of the particle size analysis are not straightforward. The values of mean volume diameter (D[3,4]) indicated that the particle size increased to 6 wt% Fe2O3 (123.6 mu m), and then decreased and for the sample with 12 wt% Fe2O3, it was equal to 96.6 mu m. Thus, the added iron contributed to the more uniform particle size distribution. The SEM analysis has also shown the coarse powder particles consisted of the coalesced smaller particles.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Structural and morphological characterization of iron-doped sol-gel derived mullite powders",
pages = "13113-13107",
number = "9",
volume = "46",
doi = "10.1016/j.ceramint.2020.02.083"
}

Ilić, S. M., Babić, B. M., Bjelajac, A., Stoimenov, N., Kljajević, L. M., Pošarac-Marković, M. B.,& Matović, B.. (2020). Structural and morphological characterization of iron-doped sol-gel derived mullite powders. in Ceramics International
Elsevier Sci Ltd, Oxford., 46(9), 13107-13113.
https://doi.org/10.1016/j.ceramint.2020.02.083

Ilić SM, Babić BM, Bjelajac A, Stoimenov N, Kljajević LM, Pošarac-Marković MB, Matović B. Structural and morphological characterization of iron-doped sol-gel derived mullite powders. in Ceramics International. 2020;46(9):13107-13113.
doi:10.1016/j.ceramint.2020.02.083 .

Ilić, Svetlana M., Babić, Biljana M., Bjelajac, Anđelika, Stoimenov, Nikolay, Kljajević, Ljiljana M., Pošarac-Marković, Milica B., Matović, Branko, "Structural and morphological characterization of iron-doped sol-gel derived mullite powders" in Ceramics International, 46, no. 9 (2020):13107-13113,
https://doi.org/10.1016/j.ceramint.2020.02.083 . .

TY  - CONF
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Đurkić, Tatjana
AU  - Laušević, Mila
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6199
PB  - Srpsko hemijsko društvo / Serbian Chemical Society
C3  - 8. Simpozijum Hemija i zaštita životne sredine
T1  - Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode
EP  - 86
SP  - 85
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6199
ER  - 

@conference{
author = "Vukčević, Marija and Maletić, Marina and Kalijadis, Ana and Babić, Biljana and Đurkić, Tatjana and Laušević, Mila",
year = "2018",
publisher = "Srpsko hemijsko društvo / Serbian Chemical Society",
journal = "8. Simpozijum Hemija i zaštita životne sredine",
title = "Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode",
pages = "86-85",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6199"
}

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 8. Simpozijum Hemija i zaštita životne sredine
Srpsko hemijsko društvo / Serbian Chemical Society., 85-86.
https://hdl.handle.net/21.15107/rcub_technorep_6199

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 8. Simpozijum Hemija i zaštita životne sredine. 2018;:85-86.
https://hdl.handle.net/21.15107/rcub_technorep_6199 .

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 8. Simpozijum Hemija i zaštita životne sredine (2018):85-86,
https://hdl.handle.net/21.15107/rcub_technorep_6199 .

TY  - CONF
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Đurkić, Tatjana
AU  - Laušević, Mila
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6293
AB  - Carbon cryogel (CC), obtained by pyrolysis of resorcinol–formaldehyde
cryogels, was chemically modified and used for adsorption of drugs and
pesticides from water. FTIR analysis and point of zero charge determination
showed that applied chemical treatments affect the surface chemistry of
carbon cryogel by changing the acidity of the surface as well as the nature
and amount of surface oxygen groups. Generally, the chemical modification
has no influence on drugs adsorption, while both chemical treatments
increase the adsorption of pesticides onto carbon cryogel surface.
PB  - Society of Physical Chemists of Serbia
C3  - 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
T1  - CARBON CRYOGEL AS AN ADSORBENT FOR REMOVAL OF DRUGS AND PESTICIDES FROM WATER
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6293
ER  - 

@conference{
author = "Vukčević, Marija and Maletić, Marina and Kalijadis, Ana and Babić, Biljana and Đurkić, Tatjana and Laušević, Mila",
year = "2018",
abstract = "Carbon cryogel (CC), obtained by pyrolysis of resorcinol–formaldehyde
cryogels, was chemically modified and used for adsorption of drugs and
pesticides from water. FTIR analysis and point of zero charge determination
showed that applied chemical treatments affect the surface chemistry of
carbon cryogel by changing the acidity of the surface as well as the nature
and amount of surface oxygen groups. Generally, the chemical modification
has no influence on drugs adsorption, while both chemical treatments
increase the adsorption of pesticides onto carbon cryogel surface.",
publisher = "Society of Physical Chemists of Serbia",
journal = "14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings",
title = "CARBON CRYOGEL AS AN ADSORBENT FOR REMOVAL OF DRUGS AND PESTICIDES FROM WATER",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6293"
}

Vukčević, M., Maletić, M., Kalijadis, A., Babić, B., Đurkić, T.,& Laušević, M.. (2018). CARBON CRYOGEL AS AN ADSORBENT FOR REMOVAL OF DRUGS AND PESTICIDES FROM WATER. in 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings
Society of Physical Chemists of Serbia., 2.
https://hdl.handle.net/21.15107/rcub_technorep_6293

Vukčević M, Maletić M, Kalijadis A, Babić B, Đurkić T, Laušević M. CARBON CRYOGEL AS AN ADSORBENT FOR REMOVAL OF DRUGS AND PESTICIDES FROM WATER. in 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings. 2018;2.
https://hdl.handle.net/21.15107/rcub_technorep_6293 .

Vukčević, Marija, Maletić, Marina, Kalijadis, Ana, Babić, Biljana, Đurkić, Tatjana, Laušević, Mila, "CARBON CRYOGEL AS AN ADSORBENT FOR REMOVAL OF DRUGS AND PESTICIDES FROM WATER" in 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Proceedings, 2 (2018),
https://hdl.handle.net/21.15107/rcub_technorep_6293 .

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  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5813
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.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim
EP  - 1272
IS  - 11
SP  - 1259
VL  - 82
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.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim",
pages = "1272-1259",
number = "11",
volume = "82",
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
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  - CONF
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Babić, Biljana M.
AU  - Đurkić, Tatjana
AU  - Laušević, Mila
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6308
AB  - Predmet ovog rada bio je ispitivanje mogućnosti primene aktivnog uglja na bazi hidrotermalno
tretirane piljevine, kao sorbenta u metodi ekstrakcije na čvrstoj fazi (engl. solid phase extraction
SPE), pri analizi ostataka lekova i pesticida iz površinskih i podzemnih voda. U cilju dobijanja
novih SPE sorbenata, otpadna piljevina je najpre hidrotermalno karbonizovana, a zatim je
aktivirana korišćenjem KOH kao aktivirajućeg agensa. Variranjem količine aktivirajućeg agensa
dobijeni su različiti uzorci aktiviranog hidrotermalnog karbona (AcHTC). Površina dobijenih
materijala okarakterisana je određivanjem specifične površine, prečnika i zapremine pora, kao i
vrste i količine površinskih grupa. U cilju postizanja maksimalnih prinosa ispitivanih ostataka
lekova i pesticida, izvršena je optimizacija SPE metode odabirom odgovarajuće zapremine i pH
vrednosti uzorka vode, kao i organskog rastvarača za eluiranje. Optimizovana SPE metoda
primenjena je za analizu vode korišćenjem različitih uzoraka AcHTC kao SPE sorbenta. Dobijeni
rezultati su pokazali da se aktivirani hidrotermalni karbon na bazi piljevine može uspešno koristiti
za predkoncentrisanje lekova i pesticida iz vode.
PB  - VISOKA ŠKOLA STRUKOVNIH STUDIJA BEOGRADSKA POLITEHNIKA
C3  - Četvrti naučno-stručni skup Politehnika, Zbornik radova
T1  - Aktivirani hidrotermalni karbon na bazi piljevine kao novi SPE sorbent za analizu lekova i pesticida u vodenim uzorcima
EP  - 147
SP  - 142
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6308
ER  - 

@conference{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Babić, Biljana M. and Đurkić, Tatjana and Laušević, Mila",
year = "2017",
abstract = "Predmet ovog rada bio je ispitivanje mogućnosti primene aktivnog uglja na bazi hidrotermalno
tretirane piljevine, kao sorbenta u metodi ekstrakcije na čvrstoj fazi (engl. solid phase extraction
SPE), pri analizi ostataka lekova i pesticida iz površinskih i podzemnih voda. U cilju dobijanja
novih SPE sorbenata, otpadna piljevina je najpre hidrotermalno karbonizovana, a zatim je
aktivirana korišćenjem KOH kao aktivirajućeg agensa. Variranjem količine aktivirajućeg agensa
dobijeni su različiti uzorci aktiviranog hidrotermalnog karbona (AcHTC). Površina dobijenih
materijala okarakterisana je određivanjem specifične površine, prečnika i zapremine pora, kao i
vrste i količine površinskih grupa. U cilju postizanja maksimalnih prinosa ispitivanih ostataka
lekova i pesticida, izvršena je optimizacija SPE metode odabirom odgovarajuće zapremine i pH
vrednosti uzorka vode, kao i organskog rastvarača za eluiranje. Optimizovana SPE metoda
primenjena je za analizu vode korišćenjem različitih uzoraka AcHTC kao SPE sorbenta. Dobijeni
rezultati su pokazali da se aktivirani hidrotermalni karbon na bazi piljevine može uspešno koristiti
za predkoncentrisanje lekova i pesticida iz vode.",
publisher = "VISOKA ŠKOLA STRUKOVNIH STUDIJA BEOGRADSKA POLITEHNIKA",
journal = "Četvrti naučno-stručni skup Politehnika, Zbornik radova",
title = "Aktivirani hidrotermalni karbon na bazi piljevine kao novi SPE sorbent za analizu lekova i pesticida u vodenim uzorcima",
pages = "147-142",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6308"
}

Maletić, M., Vukčević, M., Kalijadis, A., Babić, B. M., Đurkić, T.,& Laušević, M.. (2017). Aktivirani hidrotermalni karbon na bazi piljevine kao novi SPE sorbent za analizu lekova i pesticida u vodenim uzorcima. in Četvrti naučno-stručni skup Politehnika, Zbornik radova
VISOKA ŠKOLA STRUKOVNIH STUDIJA BEOGRADSKA POLITEHNIKA., 142-147.
https://hdl.handle.net/21.15107/rcub_technorep_6308

Maletić M, Vukčević M, Kalijadis A, Babić BM, Đurkić T, Laušević M. Aktivirani hidrotermalni karbon na bazi piljevine kao novi SPE sorbent za analizu lekova i pesticida u vodenim uzorcima. in Četvrti naučno-stručni skup Politehnika, Zbornik radova. 2017;:142-147.
https://hdl.handle.net/21.15107/rcub_technorep_6308 .

Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Babić, Biljana M., Đurkić, Tatjana, Laušević, Mila, "Aktivirani hidrotermalni karbon na bazi piljevine kao novi SPE sorbent za analizu lekova i pesticida u vodenim uzorcima" in Četvrti naučno-stručni skup Politehnika, Zbornik radova (2017):142-147,
https://hdl.handle.net/21.15107/rcub_technorep_6308 .

TY  - JOUR
AU  - Simović, Bojana
AU  - Poleti, Dejan
AU  - Golubović, Aleksandar
AU  - Matković, Aleksandar
AU  - Šćepanović, Maja
AU  - Babić, Biljana M.
AU  - Branković, Goran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5817
AB  - In this work, Zn(CH3 COO)(2) 2 H-2 O with AgNO3 content from 0 to 6 mol% was solvothermally treated at 120 C for 18 h in the presence of poly(vinyl pyrrolidone), ethylene glycol and sodium hydroxide. The structural , microstructural and photocatalytic properties of the unmodified and Ag modified ZnO powders have been investigated by the XRPD, FESEM, TEM, UV-vis, Raman and BET techniques. The Ag modified samples consist of ZnO nanocrystals and metallic Ag on the surface. The average crystallite size of all samples was about 20 nm. The FESEM revealed the uniformity in size and approximately spherical shape of ZnO nanopar-ticles. The BET data suggest that all prepared samples are mesoporous. All prepared samples showed higher photocatalytic efficiency in the degradation of the Reactive Orange 16 (RO16) azo dye than the commercial ZnO. In addition, Ag modified ZnO powders, especially those with 1.5 and 0.75 mol% of Ag, were more efficient than the unmodified one.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Enhanced photocatalytic degradation of RO16 dye using Ag modified ZnO nanopowders prepared by the solvothermal method
EP  - 38
IS  - 1
SP  - 27
VL  - 11
DO  - 10.2298/PAC1701027S
ER  - 

@article{
author = "Simović, Bojana and Poleti, Dejan and Golubović, Aleksandar and Matković, Aleksandar and Šćepanović, Maja and Babić, Biljana M. and Branković, Goran",
year = "2017",
abstract = "In this work, Zn(CH3 COO)(2) 2 H-2 O with AgNO3 content from 0 to 6 mol% was solvothermally treated at 120 C for 18 h in the presence of poly(vinyl pyrrolidone), ethylene glycol and sodium hydroxide. The structural , microstructural and photocatalytic properties of the unmodified and Ag modified ZnO powders have been investigated by the XRPD, FESEM, TEM, UV-vis, Raman and BET techniques. The Ag modified samples consist of ZnO nanocrystals and metallic Ag on the surface. The average crystallite size of all samples was about 20 nm. The FESEM revealed the uniformity in size and approximately spherical shape of ZnO nanopar-ticles. The BET data suggest that all prepared samples are mesoporous. All prepared samples showed higher photocatalytic efficiency in the degradation of the Reactive Orange 16 (RO16) azo dye than the commercial ZnO. In addition, Ag modified ZnO powders, especially those with 1.5 and 0.75 mol% of Ag, were more efficient than the unmodified one.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Enhanced photocatalytic degradation of RO16 dye using Ag modified ZnO nanopowders prepared by the solvothermal method",
pages = "38-27",
number = "1",
volume = "11",
doi = "10.2298/PAC1701027S"
}

Simović, B., Poleti, D., Golubović, A., Matković, A., Šćepanović, M., Babić, B. M.,& Branković, G.. (2017). Enhanced photocatalytic degradation of RO16 dye using Ag modified ZnO nanopowders prepared by the solvothermal method. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 11(1), 27-38.
https://doi.org/10.2298/PAC1701027S

Simović B, Poleti D, Golubović A, Matković A, Šćepanović M, Babić BM, Branković G. Enhanced photocatalytic degradation of RO16 dye using Ag modified ZnO nanopowders prepared by the solvothermal method. in Processing and Application of Ceramics. 2017;11(1):27-38.
doi:10.2298/PAC1701027S .

Simović, Bojana, Poleti, Dejan, Golubović, Aleksandar, Matković, Aleksandar, Šćepanović, Maja, Babić, Biljana M., Branković, Goran, "Enhanced photocatalytic degradation of RO16 dye using Ag modified ZnO nanopowders prepared by the solvothermal method" in Processing and Application of Ceramics, 11, no. 1 (2017):27-38,
https://doi.org/10.2298/PAC1701027S . .

TY  - JOUR
AU  - Golubović, Aleksandar
AU  - Simović, Bojana
AU  - Gašić, Slavica
AU  - Mijin, Dušan
AU  - Matković, Aleksandar
AU  - Babić, Biljana M.
AU  - Scepanović, Maja
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3628
AB  - TiO2 nanopowders were produced by sol-gel technique using TiCl4 as a starting material. For the preparation of crystalline anatase with developed surface area, this aqueous solution has been mixed with 0.05 M or 0.07 M (NH4)(2)SO4 solution in a temperature-controlled bath. The pH values of the suspension were 7, 8 or 9. According to the x-ray diffraction (XRD) analysis the anatase crystallite sizes were about 12 nm, which coincided with the average particle size revealed by scanning electron microscopy (SEM). The Raman scattering measurements have shown the presence of a small amount of highly disordered brookite phase in addition to dominant anatase phase with similar nanostructure in all synthesized powders. BET measurements revealed that all synthesized catalysts were fully mesoporous, except the sample synthesized with 0.07 M (NH4)(2)SO4 at pH=9, which had small amount of micropores. The photocatalytic degradation of herbicide Clomazone was carried out for both the pure active substance and as the commercial product (GAMIT 4-EC) under UV irradiation. The best photocatalytic efficiency was obtained for the catalyst with the largest specific surface area, confirming this parameter as crucial for enhanced photocatalytic degradation of the pure active substance and commercial product of herbicide Clomazone.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media
EP  - 330
IS  - 3
SP  - 319
VL  - 49
DO  - 10.2298/SOS1703319G
ER  - 

@article{
author = "Golubović, Aleksandar and Simović, Bojana and Gašić, Slavica and Mijin, Dušan and Matković, Aleksandar and Babić, Biljana M. and Scepanović, Maja",
year = "2017",
abstract = "TiO2 nanopowders were produced by sol-gel technique using TiCl4 as a starting material. For the preparation of crystalline anatase with developed surface area, this aqueous solution has been mixed with 0.05 M or 0.07 M (NH4)(2)SO4 solution in a temperature-controlled bath. The pH values of the suspension were 7, 8 or 9. According to the x-ray diffraction (XRD) analysis the anatase crystallite sizes were about 12 nm, which coincided with the average particle size revealed by scanning electron microscopy (SEM). The Raman scattering measurements have shown the presence of a small amount of highly disordered brookite phase in addition to dominant anatase phase with similar nanostructure in all synthesized powders. BET measurements revealed that all synthesized catalysts were fully mesoporous, except the sample synthesized with 0.07 M (NH4)(2)SO4 at pH=9, which had small amount of micropores. The photocatalytic degradation of herbicide Clomazone was carried out for both the pure active substance and as the commercial product (GAMIT 4-EC) under UV irradiation. The best photocatalytic efficiency was obtained for the catalyst with the largest specific surface area, confirming this parameter as crucial for enhanced photocatalytic degradation of the pure active substance and commercial product of herbicide Clomazone.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media",
pages = "330-319",
number = "3",
volume = "49",
doi = "10.2298/SOS1703319G"
}

Golubović, A., Simović, B., Gašić, S., Mijin, D., Matković, A., Babić, B. M.,& Scepanović, M.. (2017). Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(3), 319-330.
https://doi.org/10.2298/SOS1703319G

Golubović A, Simović B, Gašić S, Mijin D, Matković A, Babić BM, Scepanović M. Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media. in Science of Sintering. 2017;49(3):319-330.
doi:10.2298/SOS1703319G .

Golubović, Aleksandar, Simović, Bojana, Gašić, Slavica, Mijin, Dušan, Matković, Aleksandar, Babić, Biljana M., Scepanović, Maja, "Sol-gel Synthesis of Anatase Nanopowders for Efficient Photocatalytic Degradation of Herbicide Clomazone in Aqueous Media" in Science of Sintering, 49, no. 3 (2017):319-330,
https://doi.org/10.2298/SOS1703319G . .

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
AU  - Babić, Biljana M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3272
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.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite
EP  - 23
IS  - 1
SP  - 17
VL  - 10
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 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.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite",
pages = "23-17",
number = "1",
volume = "10",
doi = "10.2298/PAC1601017M"
}

Minović-Arsić, T., Kalijadis, A., Matović, B., Stoiljković, M., Pantić, J. R., Jovanović, J., Petrović, R., Jokić, B.,& Babić, B. M.. (2016). Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 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 B, 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, 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  - Trivunac, Katarina
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
AU  - Gulicovski, Jelena
AU  - Mirković, Miljana M.
AU  - Babić, Biljana M.
AU  - Stevanović, Slavica
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3340
AB  - The microstructural characterization and adsorption properties of metakaolin (MK) and alkali-activated metakaolin, known as geopolymer materials (GP) were investigated. The structure and properties of the metakaolin and obtained geopolymer were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Furthermore, based on the analysis of adsorption efficiency, microstructure and mineral structure, the difference between geopolymer and metakaolin on the performance of immobilizing heavy metals have been discussed. The kinetics of adsorption can be represented by pseudo-second order equation. The results of lead ions adsorption experiments were best fitted by Freundlich adsorption isotherm for both investigated adsorbents. The highest removal efficiencies of alkali-activated material based on metakaolin was found 97.5% at pH 4 and metakaolin removal efficiencies was found 92% at pH 5.5.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin
EP  - 220
IS  - 2
SP  - 209
VL  - 48
DO  - 10.2298/SOS1602209T
ER  - 

@article{
author = "Trivunac, Katarina and Kljajević, Ljiljana M. and Nenadović, Snežana S. and Gulicovski, Jelena and Mirković, Miljana M. and Babić, Biljana M. and Stevanović, Slavica",
year = "2016",
abstract = "The microstructural characterization and adsorption properties of metakaolin (MK) and alkali-activated metakaolin, known as geopolymer materials (GP) were investigated. The structure and properties of the metakaolin and obtained geopolymer were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Furthermore, based on the analysis of adsorption efficiency, microstructure and mineral structure, the difference between geopolymer and metakaolin on the performance of immobilizing heavy metals have been discussed. The kinetics of adsorption can be represented by pseudo-second order equation. The results of lead ions adsorption experiments were best fitted by Freundlich adsorption isotherm for both investigated adsorbents. The highest removal efficiencies of alkali-activated material based on metakaolin was found 97.5% at pH 4 and metakaolin removal efficiencies was found 92% at pH 5.5.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin",
pages = "220-209",
number = "2",
volume = "48",
doi = "10.2298/SOS1602209T"
}

Trivunac, K., Kljajević, L. M., Nenadović, S. S., Gulicovski, J., Mirković, M. M., Babić, B. M.,& Stevanović, S.. (2016). Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 48(2), 209-220.
https://doi.org/10.2298/SOS1602209T

Trivunac K, Kljajević LM, Nenadović SS, Gulicovski J, Mirković MM, Babić BM, Stevanović S. Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin. in Science of Sintering. 2016;48(2):209-220.
doi:10.2298/SOS1602209T .

Trivunac, Katarina, Kljajević, Ljiljana M., Nenadović, Snežana S., Gulicovski, Jelena, Mirković, Miljana M., Babić, Biljana M., Stevanović, Slavica, "Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin" in Science of Sintering, 48, no. 2 (2016):209-220,
https://doi.org/10.2298/SOS1602209T . .

TY  - JOUR
AU  - Niklioc, I.
AU  - Marković, Smilja
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Vuk
AU  - Karanović, Ljiljana
AU  - Babić, Biljana M.
AU  - Radmilović, Velimir R.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3238
AB  - Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0-40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N-
PB  - Elsevier Science Bv, Amsterdam
T2  - Materials Letters
T1  - Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag
EP  - 305
SP  - 301
VL  - 176
DO  - 10.1016/j.matlet.2016.04.121
ER  - 

@article{
author = "Niklioc, I. and Marković, Smilja and Janković-Častvan, Ivona and Radmilović, Vuk and Karanović, Ljiljana and Babić, Biljana M. and Radmilović, Velimir R.",
year = "2016",
abstract = "Geopolymeric binders (GB) were produced using fly ash (FA) and electric arc furnace slag (EAFS). The slag has been added in the range of 0-40%. The effects of slag content on the strength, microstructure and thermal resistance were evaluated. It was found that the amount of EAFS up to 30% positively affects the strength evolution of GB. The main reaction product of FA/EAFS blends was amorphous N-",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Materials Letters",
title = "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag",
pages = "305-301",
volume = "176",
doi = "10.1016/j.matlet.2016.04.121"
}

Niklioc, I., Marković, S., Janković-Častvan, I., Radmilović, V., Karanović, L., Babić, B. M.,& Radmilović, V. R.. (2016). Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters
Elsevier Science Bv, Amsterdam., 176, 301-305.
https://doi.org/10.1016/j.matlet.2016.04.121

Niklioc I, Marković S, Janković-Častvan I, Radmilović V, Karanović L, Babić BM, Radmilović VR. Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag. in Materials Letters. 2016;176:301-305.
doi:10.1016/j.matlet.2016.04.121 .

Niklioc, I., Marković, Smilja, Janković-Častvan, Ivona, Radmilović, Vuk, Karanović, Ljiljana, Babić, Biljana M., Radmilović, Velimir R., "Modification of mechanical and thermal properties of fly ash-based geopolymer by the incorporation of steel slag" in Materials Letters, 176 (2016):301-305,
https://doi.org/10.1016/j.matlet.2016.04.121 . .

TY  - JOUR
AU  - Lazarević-Pašti, Tamara
AU  - Pašti, Igor A.
AU  - Jokić, Bojan M.
AU  - Babić, Biljana M.
AU  - Vasić, Vesna M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5828
AB  - Extensive use of organophosphate pesticides (OPs) invokes development of efficient procedures for their removal from the environment. By introducing low levels ( LT 1 at%) of B, N or P into the structure of mesoporous carbons, we have produced a series of materials with different surface chemical composition, textural properties and level of structural disorder. These adsorbents were applied for removal of dimethoate and its oxo-analogue omethoate from aqueous solutions under batch adsorption conditions and by filtration using modified nylon membrane filters. Adsorption capacities up to 164 mg g(-1) were measured, with OPs uptake typically above 80% for dimethoate concentration as high as 5 x 10(-3) mol dm(-3). After the adsorption, neurotoxic effects of OP-containing water samples were significantly reduced or completely removed. The level of structural disorder was identified as a key parameter for efficient removal of dimethoate and omethoate while in the filtration experiments surface area of adsorbents also played an important role. While the presented research appeals to new fundamental studies of OP-carbon surface interactions, it also indicates a possible strategy in designing new efficient adsorbents for OPs removal from water.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water
EP  - 62139
IS  - 67
SP  - 62128
VL  - 6
DO  - 10.1039/c6ra06736k
ER  - 

@article{
author = "Lazarević-Pašti, Tamara and Pašti, Igor A. and Jokić, Bojan M. and Babić, Biljana M. and Vasić, Vesna M.",
year = "2016",
abstract = "Extensive use of organophosphate pesticides (OPs) invokes development of efficient procedures for their removal from the environment. By introducing low levels ( LT 1 at%) of B, N or P into the structure of mesoporous carbons, we have produced a series of materials with different surface chemical composition, textural properties and level of structural disorder. These adsorbents were applied for removal of dimethoate and its oxo-analogue omethoate from aqueous solutions under batch adsorption conditions and by filtration using modified nylon membrane filters. Adsorption capacities up to 164 mg g(-1) were measured, with OPs uptake typically above 80% for dimethoate concentration as high as 5 x 10(-3) mol dm(-3). After the adsorption, neurotoxic effects of OP-containing water samples were significantly reduced or completely removed. The level of structural disorder was identified as a key parameter for efficient removal of dimethoate and omethoate while in the filtration experiments surface area of adsorbents also played an important role. While the presented research appeals to new fundamental studies of OP-carbon surface interactions, it also indicates a possible strategy in designing new efficient adsorbents for OPs removal from water.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water",
pages = "62139-62128",
number = "67",
volume = "6",
doi = "10.1039/c6ra06736k"
}

Lazarević-Pašti, T., Pašti, I. A., Jokić, B. M., Babić, B. M.,& Vasić, V. M.. (2016). Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water. in RSC Advances
Royal Society of Chemistry., 6(67), 62128-62139.
https://doi.org/10.1039/c6ra06736k

Lazarević-Pašti T, Pašti IA, Jokić BM, Babić BM, Vasić VM. Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water. in RSC Advances. 2016;6(67):62128-62139.
doi:10.1039/c6ra06736k .

Lazarević-Pašti, Tamara, Pašti, Igor A., Jokić, Bojan M., Babić, Biljana M., Vasić, Vesna M., "Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water" in RSC Advances, 6, no. 67 (2016):62128-62139,
https://doi.org/10.1039/c6ra06736k . .

TY  - JOUR
AU  - Babić, Biljana M.
AU  - Zarubica, Aleksandra R.
AU  - Minović-Arsić, Tamara
AU  - Pantić, Jelena R.
AU  - Jokić, Bojan M.
AU  - Abazović, Nadica
AU  - Matović, Branko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5832
AB  - Titanium dioxide nanopowders, doped with different amount of Fe3+ ions (0.3-5.0 mass%), were synthesized by acid-catalyzed sol-gel method in a non-aqueous medium. The obtained powders were characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectrometry (EDX) and UV/vis spectroscopy. Degradation reaction of crystal violet (CV) azo dye is used to test the photocatalytic activity of iron doped titanium dioxide nanopowders. The results are correlated with previous investigations about the structure and physico-chemical characteristics of obtained nanopowders. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier Ltd.
T2  - Journal of the European Ceramic Society
T1  - Iron doped anatase for application in photocatalysis
EP  - 2996
IS  - 12
SP  - 2991
VL  - 36
DO  - 10.1016/j.jeurceramsoc.2015.11.031
ER  - 

@article{
author = "Babić, Biljana M. and Zarubica, Aleksandra R. and Minović-Arsić, Tamara and Pantić, Jelena R. and Jokić, Bojan M. and Abazović, Nadica and Matović, Branko",
year = "2016",
abstract = "Titanium dioxide nanopowders, doped with different amount of Fe3+ ions (0.3-5.0 mass%), were synthesized by acid-catalyzed sol-gel method in a non-aqueous medium. The obtained powders were characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectrometry (EDX) and UV/vis spectroscopy. Degradation reaction of crystal violet (CV) azo dye is used to test the photocatalytic activity of iron doped titanium dioxide nanopowders. The results are correlated with previous investigations about the structure and physico-chemical characteristics of obtained nanopowders. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier Ltd.",
journal = "Journal of the European Ceramic Society",
title = "Iron doped anatase for application in photocatalysis",
pages = "2996-2991",
number = "12",
volume = "36",
doi = "10.1016/j.jeurceramsoc.2015.11.031"
}

Babić, B. M., Zarubica, A. R., Minović-Arsić, T., Pantić, J. R., Jokić, B. M., Abazović, N.,& Matović, B.. (2016). Iron doped anatase for application in photocatalysis. in Journal of the European Ceramic Society
Elsevier Ltd.., 36(12), 2991-2996.
https://doi.org/10.1016/j.jeurceramsoc.2015.11.031

Babić BM, Zarubica AR, Minović-Arsić T, Pantić JR, Jokić BM, Abazović N, Matović B. Iron doped anatase for application in photocatalysis. in Journal of the European Ceramic Society. 2016;36(12):2991-2996.
doi:10.1016/j.jeurceramsoc.2015.11.031 .

Babić, Biljana M., Zarubica, Aleksandra R., Minović-Arsić, Tamara, Pantić, Jelena R., Jokić, Bojan M., Abazović, Nadica, Matović, Branko, "Iron doped anatase for application in photocatalysis" in Journal of the European Ceramic Society, 36, no. 12 (2016):2991-2996,
https://doi.org/10.1016/j.jeurceramsoc.2015.11.031 . .

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Jokić, Bojan M.
AU  - Pantić, Jelena R.
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5840
AB  - Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - Synthesis and characterization of Cr3+ doped TiO2 nanometric powders
EP  - 1869
IS  - 1
SP  - 1862
VL  - 42
DO  - 10.1016/j.ceramint.2015.09.151
ER  - 

@article{
author = "Prekajski-Đorđević, Marija D. and Zarubica, Aleksandra R. and Babić, Biljana M. and Jokić, Bojan M. and Pantić, Jelena R. and Luković, Jelena M. and Matović, Branko",
year = "2016",
abstract = "Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders",
pages = "1869-1862",
number = "1",
volume = "42",
doi = "10.1016/j.ceramint.2015.09.151"
}

Prekajski-Đorđević, M. D., Zarubica, A. R., Babić, B. M., Jokić, B. M., Pantić, J. R., Luković, J. M.,& Matović, B.. (2016). Synthesis and characterization of Cr3+ doped TiO2 nanometric powders. in Ceramics International
Elsevier., 42(1), 1862-1869.
https://doi.org/10.1016/j.ceramint.2015.09.151

Prekajski-Đorđević MD, Zarubica AR, Babić BM, Jokić BM, Pantić JR, Luković JM, Matović B. Synthesis and characterization of Cr3+ doped TiO2 nanometric powders. in Ceramics International. 2016;42(1):1862-1869.
doi:10.1016/j.ceramint.2015.09.151 .

Prekajski-Đorđević, Marija D., Zarubica, Aleksandra R., Babić, Biljana M., Jokić, Bojan M., Pantić, Jelena R., Luković, Jelena M., Matović, Branko, "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders" in Ceramics International, 42, no. 1 (2016):1862-1869,
https://doi.org/10.1016/j.ceramint.2015.09.151 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Bučevac, Dušan
AU  - Urbanović, Vladimir
AU  - Stanković, Nadežda
AU  - Daneu, Nina
AU  - Volkov-Husović, Tatjana
AU  - Babić, Biljana M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3432
AB  - Additive-free beta-SiC nanopowders were densified by using high-pressure "anvil-type with hollows" apparatus at the pressure of 4 GPa in the range of 1500-1900 degrees C. The starting powder with average particle size of 10 nm was synthesized by a sol-gel process. Crystallite size and lattice parameters of the samples have been studied at room temperature by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was found that the size of the crystallites gradually increases from 16 to 51 nm with increasing sintering temperature (1500 to 1900 degrees C). Fully densified sample ( gt 99%) was obtained at a sintering temperature of 1900 degrees C for 60 s. This sample exhibits nano-hardness and Young's modulus of elasticity of 35 GPa and 450 GPa, respectively. Modified vibratory cavitation test method was used for laboratory testing of the cavitation resistance. A very low erosion level with mass loss 0.1% after 10 h was exhibited during the cavitation test.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Monolithic nanocrystalline SiC ceramics
EP  - 3010
IS  - 12
SP  - 3005
VL  - 36
DO  - 10.1016/j.jeurceramsoc.2015.10.031
ER  - 

@article{
author = "Matović, Branko and Bučevac, Dušan and Urbanović, Vladimir and Stanković, Nadežda and Daneu, Nina and Volkov-Husović, Tatjana and Babić, Biljana M.",
year = "2016",
abstract = "Additive-free beta-SiC nanopowders were densified by using high-pressure "anvil-type with hollows" apparatus at the pressure of 4 GPa in the range of 1500-1900 degrees C. The starting powder with average particle size of 10 nm was synthesized by a sol-gel process. Crystallite size and lattice parameters of the samples have been studied at room temperature by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was found that the size of the crystallites gradually increases from 16 to 51 nm with increasing sintering temperature (1500 to 1900 degrees C). Fully densified sample ( gt 99%) was obtained at a sintering temperature of 1900 degrees C for 60 s. This sample exhibits nano-hardness and Young's modulus of elasticity of 35 GPa and 450 GPa, respectively. Modified vibratory cavitation test method was used for laboratory testing of the cavitation resistance. A very low erosion level with mass loss 0.1% after 10 h was exhibited during the cavitation test.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Monolithic nanocrystalline SiC ceramics",
pages = "3010-3005",
number = "12",
volume = "36",
doi = "10.1016/j.jeurceramsoc.2015.10.031"
}

Matović, B., Bučevac, D., Urbanović, V., Stanković, N., Daneu, N., Volkov-Husović, T.,& Babić, B. M.. (2016). Monolithic nanocrystalline SiC ceramics. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 36(12), 3005-3010.
https://doi.org/10.1016/j.jeurceramsoc.2015.10.031

Matović B, Bučevac D, Urbanović V, Stanković N, Daneu N, Volkov-Husović T, Babić BM. Monolithic nanocrystalline SiC ceramics. in Journal of the European Ceramic Society. 2016;36(12):3005-3010.
doi:10.1016/j.jeurceramsoc.2015.10.031 .

Matović, Branko, Bučevac, Dušan, Urbanović, Vladimir, Stanković, Nadežda, Daneu, Nina, Volkov-Husović, Tatjana, Babić, Biljana M., "Monolithic nanocrystalline SiC ceramics" in Journal of the European Ceramic Society, 36, no. 12 (2016):3005-3010,
https://doi.org/10.1016/j.jeurceramsoc.2015.10.031 . .

TY  - JOUR
AU  - Golubović, Aleksandar
AU  - Veljković, Ivana
AU  - Scepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Tomić, Nataša M.
AU  - Mijin, Dušan
AU  - Babić, Biljana M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3436
AB  - Titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor by varying some parameters of the sol-gel synthesis, such as temperature (500 and 550 degrees C) and the duration of calcination (1.5, 2 and 2.5 h). X-ray powder diffraction (XRPD) results have shown that all synthesized nanopowders were dominantly in the anatase phase, with the presence of a small amount of rutile in samples calcined at 550 degrees C. According to the results obtained by the Williamson-Hall method, the anatase crystallite size was increased with the duration of the calcination (from 24 to 29 nm in samples calcined at lower temperature, and from 30 to 35 nm in samples calcined at higher temperature). The analysis of the shift and line-width of the most intensive anatase Eg Raman mode confirmed the XRPD results. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 5-8 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16), car-bofuran ray scattering.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants
EP  - 73
IS  - 1
SP  - 65
VL  - 22
DO  - 10.2298/CICEQ150110020G
ER  - 

@article{
author = "Golubović, Aleksandar and Veljković, Ivana and Scepanović, Maja and Grujić-Brojčin, Mirjana and Tomić, Nataša M. and Mijin, Dušan and Babić, Biljana M.",
year = "2016",
abstract = "Titanium dioxide (TiO2) nanopowders were produced by sol-gel technique from tetrabutyl titanate as a precursor by varying some parameters of the sol-gel synthesis, such as temperature (500 and 550 degrees C) and the duration of calcination (1.5, 2 and 2.5 h). X-ray powder diffraction (XRPD) results have shown that all synthesized nanopowders were dominantly in the anatase phase, with the presence of a small amount of rutile in samples calcined at 550 degrees C. According to the results obtained by the Williamson-Hall method, the anatase crystallite size was increased with the duration of the calcination (from 24 to 29 nm in samples calcined at lower temperature, and from 30 to 35 nm in samples calcined at higher temperature). The analysis of the shift and line-width of the most intensive anatase Eg Raman mode confirmed the XRPD results. The analysis of pore structure from nitrogen sorption experimental data described all samples as mesoporous, with mean pore diameters in the range of 5-8 nm. Nanopowder properties have been related to the photocatalytic activity, tested in degradation of the textile dye (C.I. Reactive Orange 16), car-bofuran ray scattering.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants",
pages = "73-65",
number = "1",
volume = "22",
doi = "10.2298/CICEQ150110020G"
}

Golubović, A., Veljković, I., Scepanović, M., Grujić-Brojčin, M., Tomić, N. M., Mijin, D.,& Babić, B. M.. (2016). Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 22(1), 65-73.
https://doi.org/10.2298/CICEQ150110020G

Golubović A, Veljković I, Scepanović M, Grujić-Brojčin M, Tomić NM, Mijin D, Babić BM. Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants. in Chemical Industry & Chemical Engineering Quarterly. 2016;22(1):65-73.
doi:10.2298/CICEQ150110020G .

Golubović, Aleksandar, Veljković, Ivana, Scepanović, Maja, Grujić-Brojčin, Mirjana, Tomić, Nataša M., Mijin, Dušan, Babić, Biljana M., "Influence of some sol-gel synthesis parameters of mesoporous tio2 on photocatalytic degradation of pollutants" in Chemical Industry & Chemical Engineering Quarterly, 22, no. 1 (2016):65-73,
https://doi.org/10.2298/CICEQ150110020G . .

TY  - JOUR
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Vasiljević, Tatjana
AU  - Babić, Biljana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3127
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.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption
EP  - 165
SP  - 156
VL  - 214
DO  - 10.1016/j.micromeso.2015.05.012
ER  - 

@article{
author = "Vukčević, Marija and Kalijadis, Ana and Vasiljević, Tatjana and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila",
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.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption",
pages = "165-156",
volume = "214",
doi = "10.1016/j.micromeso.2015.05.012"
}

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

Vukčević M, Kalijadis A, Vasiljević T, Babić BM, Laušević Z, Laušević M. 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, Kalijadis, Ana, Vasiljević, Tatjana, Babić, Biljana M., Laušević, Zoran, Laušević, Mila, "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  - Elezović, Nevenka
AU  - Radmilović, Velimir R.
AU  - Kovač, Janez
AU  - Babić, Biljana M.
AU  - Gajić Krstajić, Ljiljana
AU  - Krstajić, Nedeljko
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5795
AB  - A platinum nanocatalyst on Sb doped tin oxide support (Sb-SnO2) was synthesized and characterized as a catalyst for oxygen reduction reaction in 0.1 mol dm(-3) NaOH solution at 25 degrees C. Sb (5%) doped tin oxide support was synthesized by a modified hydrazine reduction procedure. The platinum nanocatalyst (20% Pt) on Sb-SnO2 support was synthesized by a borohydride reduction method. The synthesized support and catalyst were characterized by high resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) and X-ray diffraction technique (XRD). X-ray photoelectron spectroscopy was applied to characterize the chemical status of elements before and after Pt-treatment. XPS spectra of Sn 3d, Pt 4f, Sb 3d and O 1s revealed that the Pt-deposition on Sb-SnO2 support induced the reduction of the Sn(4+) oxidation state to Sn(2+) and Sn(0) states, while Pt remained in the metallic state and Sb was in the (3+) oxidation state. Homogenous Pt nanoparticle distribution over the support, without pronounced particle agglomeration, was confirmed by HRTEM technique. The average Pt particle size was 2.9 nm. The electrochemically active Pt surface area of the catalyst was determined by the integration of the cyclic voltammetry curve in the potential region of underpotential deposition of hydrogen, after double layer charge correction, taking into account the reference value of 210 mu C cm(-2) for full monolayer coverage. This calculation gave the value of 51 m(2) g(-1). The kinetics of the oxygen reduction reaction with Pt/[Sb-SnO2 catalyst was studied by cyclic voltammetry and linear sweep voltammetry using a rotating gold disc electrode. Two different Tafel slopes were observed: one close to 60 mV dec(-1) in the low current density region, and another at similar to 120 mV dec(-1) in the higher current densities region, as was already referred in previous reports for the oxygen reduction reaction with polycrystalline Pt, as well as with different Pt based nanocatalysts. The specific activities for oxygen reduction, expressed in terms of kinetic current densities per electrochemically Pt active surface area, as well as per mass of Pt loaded, at the constant potential of practical interest (0.85 V and 0.90 V vs. RHE), were compared to a carbon supported (Vulcan XC-72) catalyst. The Pt/[Sb-SnO2 catalyst exhibited similar catalytic activity for oxygen reduction reaction like carbon supported one. The advantages of the carbon free support application in terms of the durability and stability of the catalysts were proved by accelerated stability tests.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions
EP  - 15929
IS  - 21
SP  - 15923
VL  - 5
DO  - 10.1039/c4ra13391a
UR  - https://hdl.handle.net/21.15107/rcub_dais_3354
ER  - 

@article{
author = "Elezović, Nevenka and Radmilović, Velimir R. and Kovač, Janez and Babić, Biljana M. and Gajić Krstajić, Ljiljana and Krstajić, Nedeljko",
year = "2015",
abstract = "A platinum nanocatalyst on Sb doped tin oxide support (Sb-SnO2) was synthesized and characterized as a catalyst for oxygen reduction reaction in 0.1 mol dm(-3) NaOH solution at 25 degrees C. Sb (5%) doped tin oxide support was synthesized by a modified hydrazine reduction procedure. The platinum nanocatalyst (20% Pt) on Sb-SnO2 support was synthesized by a borohydride reduction method. The synthesized support and catalyst were characterized by high resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) and X-ray diffraction technique (XRD). X-ray photoelectron spectroscopy was applied to characterize the chemical status of elements before and after Pt-treatment. XPS spectra of Sn 3d, Pt 4f, Sb 3d and O 1s revealed that the Pt-deposition on Sb-SnO2 support induced the reduction of the Sn(4+) oxidation state to Sn(2+) and Sn(0) states, while Pt remained in the metallic state and Sb was in the (3+) oxidation state. Homogenous Pt nanoparticle distribution over the support, without pronounced particle agglomeration, was confirmed by HRTEM technique. The average Pt particle size was 2.9 nm. The electrochemically active Pt surface area of the catalyst was determined by the integration of the cyclic voltammetry curve in the potential region of underpotential deposition of hydrogen, after double layer charge correction, taking into account the reference value of 210 mu C cm(-2) for full monolayer coverage. This calculation gave the value of 51 m(2) g(-1). The kinetics of the oxygen reduction reaction with Pt/[Sb-SnO2 catalyst was studied by cyclic voltammetry and linear sweep voltammetry using a rotating gold disc electrode. Two different Tafel slopes were observed: one close to 60 mV dec(-1) in the low current density region, and another at similar to 120 mV dec(-1) in the higher current densities region, as was already referred in previous reports for the oxygen reduction reaction with polycrystalline Pt, as well as with different Pt based nanocatalysts. The specific activities for oxygen reduction, expressed in terms of kinetic current densities per electrochemically Pt active surface area, as well as per mass of Pt loaded, at the constant potential of practical interest (0.85 V and 0.90 V vs. RHE), were compared to a carbon supported (Vulcan XC-72) catalyst. The Pt/[Sb-SnO2 catalyst exhibited similar catalytic activity for oxygen reduction reaction like carbon supported one. The advantages of the carbon free support application in terms of the durability and stability of the catalysts were proved by accelerated stability tests.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions",
pages = "15929-15923",
number = "21",
volume = "5",
doi = "10.1039/c4ra13391a",
url = "https://hdl.handle.net/21.15107/rcub_dais_3354"
}

Elezović, N., Radmilović, V. R., Kovač, J., Babić, B. M., Gajić Krstajić, L.,& Krstajić, N.. (2015). Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions. in RSC Advances
Royal Society of Chemistry., 5(21), 15923-15929.
https://doi.org/10.1039/c4ra13391a
https://hdl.handle.net/21.15107/rcub_dais_3354

Elezović N, Radmilović VR, Kovač J, Babić BM, Gajić Krstajić L, Krstajić N. Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions. in RSC Advances. 2015;5(21):15923-15929.
doi:10.1039/c4ra13391a
https://hdl.handle.net/21.15107/rcub_dais_3354 .

Elezović, Nevenka, Radmilović, Velimir R., Kovač, Janez, Babić, Biljana M., Gajić Krstajić, Ljiljana, Krstajić, Nedeljko, "Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions" in RSC Advances, 5, no. 21 (2015):15923-15929,
https://doi.org/10.1039/c4ra13391a .,
https://hdl.handle.net/21.15107/rcub_dais_3354 .

TY  - JOUR
AU  - Zivković, Lidija T. Izrael
AU  - Živković, Ljiljana
AU  - Babić, Biljana M.
AU  - Kokunešoski, Maja
AU  - Jokić, Bojan M.
AU  - Karadzic, Ivanka M.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5758
AB  - Lipase from Candida rugosa was immobilized by adsorption onto laboratory prepared supports, silica SBA-15 and zirconia. The adsorption process was studied as a function of pH in terms of percent of adsorbed lipase, enzyme activity and zeta potential of support and enzyme. Several analytical approaches such as laser Doppler electrophoresis, Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM) showed that the lipase was successfully immobilized onto both supports. The zeta-potential data suggest that the adsorption efficiency does not depends on the sign but on the magnitude of the surface charge of adsorption partners, and therefore underline the importance of their dispersion stability. Adsorption to material surface altered enzyme characteristics. nu(max), for the lipase immobilized onto silica and zirconia were 4.8-fold and 3.6-fold lower than that of the free lipase, respectively. The Km showed no alteration of enzyme-substrate affinity on zirconia support, whereas the enzyme immobilized on silica had 3.6 times lower affinity. Thermostability at 60 degrees C of the lipase was improved 12-fold on zirconia and 4-fold on silica. Finally, in examining reusability, the immobilized lipase retained more than 90% of initial activity after eight reuses on both supports. (C) 2014 Elsevier B.V. All rights reserved.
PB  - Elsevier B.V.
T2  - Biochemical Engineering Journal
T1  - Immobilization of Candida rugosa lipase by adsorption onto biosafe meso/macroporous silica and zirconia
EP  - 83
SP  - 73
VL  - 93
DO  - 10.1016/j.bej.2014.09.012
ER  - 

@article{
author = "Zivković, Lidija T. Izrael and Živković, Ljiljana and Babić, Biljana M. and Kokunešoski, Maja and Jokić, Bojan M. and Karadzic, Ivanka M.",
year = "2015",
abstract = "Lipase from Candida rugosa was immobilized by adsorption onto laboratory prepared supports, silica SBA-15 and zirconia. The adsorption process was studied as a function of pH in terms of percent of adsorbed lipase, enzyme activity and zeta potential of support and enzyme. Several analytical approaches such as laser Doppler electrophoresis, Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM) showed that the lipase was successfully immobilized onto both supports. The zeta-potential data suggest that the adsorption efficiency does not depends on the sign but on the magnitude of the surface charge of adsorption partners, and therefore underline the importance of their dispersion stability. Adsorption to material surface altered enzyme characteristics. nu(max), for the lipase immobilized onto silica and zirconia were 4.8-fold and 3.6-fold lower than that of the free lipase, respectively. The Km showed no alteration of enzyme-substrate affinity on zirconia support, whereas the enzyme immobilized on silica had 3.6 times lower affinity. Thermostability at 60 degrees C of the lipase was improved 12-fold on zirconia and 4-fold on silica. Finally, in examining reusability, the immobilized lipase retained more than 90% of initial activity after eight reuses on both supports. (C) 2014 Elsevier B.V. All rights reserved.",
publisher = "Elsevier B.V.",
journal = "Biochemical Engineering Journal",
title = "Immobilization of Candida rugosa lipase by adsorption onto biosafe meso/macroporous silica and zirconia",
pages = "83-73",
volume = "93",
doi = "10.1016/j.bej.2014.09.012"
}

Zivković, L. T. I., Živković, L., Babić, B. M., Kokunešoski, M., Jokić, B. M.,& Karadzic, I. M.. (2015). Immobilization of Candida rugosa lipase by adsorption onto biosafe meso/macroporous silica and zirconia. in Biochemical Engineering Journal
Elsevier B.V.., 93, 73-83.
https://doi.org/10.1016/j.bej.2014.09.012

Zivković LTI, Živković L, Babić BM, Kokunešoski M, Jokić BM, Karadzic IM. Immobilization of Candida rugosa lipase by adsorption onto biosafe meso/macroporous silica and zirconia. in Biochemical Engineering Journal. 2015;93:73-83.
doi:10.1016/j.bej.2014.09.012 .

Zivković, Lidija T. Izrael, Živković, Ljiljana, Babić, Biljana M., Kokunešoski, Maja, Jokić, Bojan M., Karadzic, Ivanka M., "Immobilization of Candida rugosa lipase by adsorption onto biosafe meso/macroporous silica and zirconia" in Biochemical Engineering Journal, 93 (2015):73-83,
https://doi.org/10.1016/j.bej.2014.09.012 . .

TY  - JOUR
AU  - Minović-Arsić, Tamara
AU  - Gulicovski, Jelena J.
AU  - Stoiljković, Milovan
AU  - Jokić, Bojan M.
AU  - Živković, Ljiljana
AU  - Matović, Branko
AU  - Babić, Biljana M.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5798
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. Material was characterized by nitrogen adsorption-desorption measurements, field emission scanning electron microscopy (FESEM), determination of isoelectric point (IEP) and point of zero charge (PZC). The As(III) removal from aqueous solutions using CC as adsorbent was studied. The adsorption of As(III) on CC was investigated as a function of As(III) concentration and solution pH. Kinetic and equilibrium behavior were defined. The amount of adsorbed As(III) remained similar within the investigated pH of the solution at equilibrium (pH range 2-11). The adsorption mechanism of As(III) ions was discussed in view of arsenic speciation and cryogel PZC. It mainly involved physical adsorption of neutral arsenic acid molecule and H2AsO3- anion on the CC surface with some electrostatic contribution. (C) 2014 Elsevier Inc. All rights reserved.
PB  - Elsevier
T2  - Microporous and Mesoporous Materials
T1  - Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions
EP  - 276
SP  - 271
VL  - 201
DO  - 10.1016/j.micromeso.2014.09.031
ER  - 

@article{
author = "Minović-Arsić, Tamara and Gulicovski, Jelena J. and Stoiljković, Milovan and Jokić, Bojan M. and Živković, Ljiljana and Matović, Branko and Babić, Biljana M.",
year = "2015",
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. Material was characterized by nitrogen adsorption-desorption measurements, field emission scanning electron microscopy (FESEM), determination of isoelectric point (IEP) and point of zero charge (PZC). The As(III) removal from aqueous solutions using CC as adsorbent was studied. The adsorption of As(III) on CC was investigated as a function of As(III) concentration and solution pH. Kinetic and equilibrium behavior were defined. The amount of adsorbed As(III) remained similar within the investigated pH of the solution at equilibrium (pH range 2-11). The adsorption mechanism of As(III) ions was discussed in view of arsenic speciation and cryogel PZC. It mainly involved physical adsorption of neutral arsenic acid molecule and H2AsO3- anion on the CC surface with some electrostatic contribution. (C) 2014 Elsevier Inc. All rights reserved.",
publisher = "Elsevier",
journal = "Microporous and Mesoporous Materials",
title = "Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions",
pages = "276-271",
volume = "201",
doi = "10.1016/j.micromeso.2014.09.031"
}

Minović-Arsić, T., Gulicovski, J. J., Stoiljković, M., Jokić, B. M., Živković, L., Matović, B.,& Babić, B. M.. (2015). Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions. in Microporous and Mesoporous Materials
Elsevier., 201, 271-276.
https://doi.org/10.1016/j.micromeso.2014.09.031

Minović-Arsić T, Gulicovski JJ, Stoiljković M, Jokić BM, Živković L, Matović B, Babić BM. Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions. in Microporous and Mesoporous Materials. 2015;201:271-276.
doi:10.1016/j.micromeso.2014.09.031 .

Minović-Arsić, Tamara, Gulicovski, Jelena J., Stoiljković, Milovan, Jokić, Bojan M., Živković, Ljiljana, Matović, Branko, Babić, Biljana M., "Surface characterization of mesoporous carbon cryogel and its application in arsenic (III) adsorption from aqueous solutions" in Microporous and Mesoporous Materials, 201 (2015):271-276,
https://doi.org/10.1016/j.micromeso.2014.09.031 . .