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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TY  - CONF
AU  - Kalijadis, Ana
AU  - Vukčević, Mira
AU  - Maletić, Marina
AU  - Laušević, Mila
AU  - Laušević, Zoran
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9235
AB  - Structural and surface characterization of pristine and boron doped
carbonized hydrothermal carbons (CHTC) is reported. Boron was
introduced into glucose precursor solution with concentration of 0.2% and
1%. Following hydrothermal treatment, samples were carbonized to 1000oC
and examined by Raman spectroscopy and temperature programmed
desorption. Characterization of obtained samples as material for carbon
paste electrode was performed by cyclic voltammetry measurements of the
Fe (CN)6
3-/4- redox couple. Structural analysis showed that lower boron
content in precursor solution induced structure ordering, while higher
amount of boron caused structural disorder of CHTC sample. Boron
presence in CHTC samples reduced number of surface active sites for
oxygen adsorption and consequently improved their electrochemical
response as electrode material for carbon paste electrode.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon
VL  - H-22-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9235
ER  - 

@conference{
author = "Kalijadis, Ana and Vukčević, Mira and Maletić, Marina and Laušević, Mila and Laušević, Zoran",
year = "2014",
abstract = "Structural and surface characterization of pristine and boron doped
carbonized hydrothermal carbons (CHTC) is reported. Boron was
introduced into glucose precursor solution with concentration of 0.2% and
1%. Following hydrothermal treatment, samples were carbonized to 1000oC
and examined by Raman spectroscopy and temperature programmed
desorption. Characterization of obtained samples as material for carbon
paste electrode was performed by cyclic voltammetry measurements of the
Fe (CN)6
3-/4- redox couple. Structural analysis showed that lower boron
content in precursor solution induced structure ordering, while higher
amount of boron caused structural disorder of CHTC sample. Boron
presence in CHTC samples reduced number of surface active sites for
oxygen adsorption and consequently improved their electrochemical
response as electrode material for carbon paste electrode.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon",
volume = "H-22-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9235"
}

Kalijadis, A., Vukčević, M., Maletić, M., Laušević, M.,& Laušević, Z.. (2014). Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-22-P.
https://hdl.handle.net/21.15107/rcub_vinar_9235

Kalijadis A, Vukčević M, Maletić M, Laušević M, Laušević Z. Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-22-P.
https://hdl.handle.net/21.15107/rcub_vinar_9235 .

Kalijadis, Ana, Vukčević, Mira, Maletić, Marina, Laušević, Mila, Laušević, Zoran, "Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-22-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9235 .