TY  - JOUR
AU  - Matijašević, Srđan
AU  - Zildžović, Snežana
AU  - Stojanović, Jovica
AU  - Đošić, Marija
AU  - Nikolić, Jelena
AU  - Stojanović, Mirjana
AU  - Labus, Nebojša
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/381
AB  - Cilj ovog rada je prikaz mogućnosti primene prirodnog i modifikovanog zeolitskog minerala kao adsorbenta i materijala za sanaciju voda kontaminiranih uranijum jonom. Modifikovani uzorci zeolita dobijeni su tretiranjem prirodnog zeolita - klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani zeoliti su okarakterisani hemijskom analizom, skenirajućom elektronskom mikroskopijom (SEM), rendgenskom analizom (XRPD), IC spektroskopijom, termičkom (TG/DTA) analizom i određivanjem kapaciteta katjonske izmene, a polazne i neadsorbovane količine uranijum jona su određene fluorimetrijski. Eksperimenti su sprovedeni da se ispita uticaj odnosa čvrsto/tečno, pH i vremena na adsorpciju uranijum jona na zeolitu. Utvrđeno je da tretman sa kiselinama zeolita povećava adsorpciju uranijum jona. Najviši indeks adsorpcije imao je uzorak zeolita modifikovan sa hlorovodoničnom kiselinom. Dobijeni rezultati adsorpcije na H-zeolitu su izračunati prema Langmirovom modelu.
AB  - The objective of this study was the review of natural zeolite, modified with acid, as a candidate material for the remediation of groundwater contaminated by uranium(VI). The modified zeolite samples were obtained by treatment of natural zeolite - clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified zeolites were characterized by chemical analysis, SEM, XRPD analysis, IR spectroscopy, thermal (TG/DT) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranium(VI) ion were determined by fluorometric method. Batch experiments were conducted to investigate the effect of solid/liquid ratio, pH and time on the U(VI) uptake by zeolite. Modification of zeolitic tuff with acids significantly increased adsorption of uranium(VI). The highest adsorption of uranium(VI) ion was achieved on clinoptilolite modified with hydrochloric acid. Uranium(VI) adsorption data for zeolite modified with hydrochloric acid was fitted to the Langmuir model.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima
T1  - Removal of uranium (VI) from aqueous solution by acid modified zeolites
EP  - 558
IS  - 4
SP  - 551
VL  - 57
DO  - 10.5937/ZasMat1604551M
UR  - conv_148
ER  - 

@article{
author = "Matijašević, Srđan and Zildžović, Snežana and Stojanović, Jovica and Đošić, Marija and Nikolić, Jelena and Stojanović, Mirjana and Labus, Nebojša",
year = "2016",
abstract = "Cilj ovog rada je prikaz mogućnosti primene prirodnog i modifikovanog zeolitskog minerala kao adsorbenta i materijala za sanaciju voda kontaminiranih uranijum jonom. Modifikovani uzorci zeolita dobijeni su tretiranjem prirodnog zeolita - klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani zeoliti su okarakterisani hemijskom analizom, skenirajućom elektronskom mikroskopijom (SEM), rendgenskom analizom (XRPD), IC spektroskopijom, termičkom (TG/DTA) analizom i određivanjem kapaciteta katjonske izmene, a polazne i neadsorbovane količine uranijum jona su određene fluorimetrijski. Eksperimenti su sprovedeni da se ispita uticaj odnosa čvrsto/tečno, pH i vremena na adsorpciju uranijum jona na zeolitu. Utvrđeno je da tretman sa kiselinama zeolita povećava adsorpciju uranijum jona. Najviši indeks adsorpcije imao je uzorak zeolita modifikovan sa hlorovodoničnom kiselinom. Dobijeni rezultati adsorpcije na H-zeolitu su izračunati prema Langmirovom modelu., The objective of this study was the review of natural zeolite, modified with acid, as a candidate material for the remediation of groundwater contaminated by uranium(VI). The modified zeolite samples were obtained by treatment of natural zeolite - clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified zeolites were characterized by chemical analysis, SEM, XRPD analysis, IR spectroscopy, thermal (TG/DT) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranium(VI) ion were determined by fluorometric method. Batch experiments were conducted to investigate the effect of solid/liquid ratio, pH and time on the U(VI) uptake by zeolite. Modification of zeolitic tuff with acids significantly increased adsorption of uranium(VI). The highest adsorption of uranium(VI) ion was achieved on clinoptilolite modified with hydrochloric acid. Uranium(VI) adsorption data for zeolite modified with hydrochloric acid was fitted to the Langmuir model.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima, Removal of uranium (VI) from aqueous solution by acid modified zeolites",
pages = "558-551",
number = "4",
volume = "57",
doi = "10.5937/ZasMat1604551M",
url = "conv_148"
}

Matijašević, S., Zildžović, S., Stojanović, J., Đošić, M., Nikolić, J., Stojanović, M.,& Labus, N.. (2016). Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 57(4), 551-558.
https://doi.org/10.5937/ZasMat1604551M
conv_148

Matijašević S, Zildžović S, Stojanović J, Đošić M, Nikolić J, Stojanović M, Labus N. Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima. in Zaštita materijala. 2016;57(4):551-558.
doi:10.5937/ZasMat1604551M
conv_148 .

Matijašević, Srđan, Zildžović, Snežana, Stojanović, Jovica, Đošić, Marija, Nikolić, Jelena, Stojanović, Mirjana, Labus, Nebojša, "Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima" in Zaštita materijala, 57, no. 4 (2016):551-558,
https://doi.org/10.5937/ZasMat1604551M .,
conv_148 .

TY  - JOUR
AU  - Daković, Aleksandra
AU  - Kragović, Milan
AU  - Rottinghaus, George E.
AU  - Sekulić, Živko
AU  - Milićević, Sonja
AU  - Milonjić, Slobodan K.
AU  - Zarić, Snežana
PY  - 2010
UR  - https://ritnms.itnms.ac.rs/handle/123456789/177
AB  - Natural Zeolitic tuff was modified with 2, 5 and 10 mmol M+/100 g of octadecyldimethylbenzyl ammonium (ODMBA) ions and the products were denoted as OZ-2, OZ-5 and OZ-10. The starting material and organozeolites were characterized by determination of the point of zero charge (pH(pzc)) and by thermal analysis. in vitro sorption of fumonisin B-1 (FB1) was studied for all sorbents at pH 3, 7 and 9. The pH(pzc) for the zeolitic tuff was 6.8 +/- 0.1, while the pH(pzc) for OZ-2, OZ-5 and OZ-10 pH(pzc) was 7.0 +/- 0.1. The curves pH(final) = f(pH(initial)) suggest that the surfaces of all sorbents are positively charged at pH 3 and uncharged at pH 7 and 9. High sorption of FB1 by the zeolitic tuff in acidic solution Suggests electrostatic Interactions between the anionic FB1 and the positively charged surface. At pH 7 and 9, adsorption of FB1 is prevented because anionic FB1 cannot be adsorbed at the uncharged surface. From the pH(pzc) for the organozeolites, it is possible that with lower amounts of ODMBA (OZ-2 and OZ-5), at pH 3, beside interactions between head groups of ODMBA and its alkyl chains and anionic FB1, electrostatic interactions between positive uncovered surface and anionic FB1 contribute to the sorption, while at pH 7 and 9 there is only the possibility for interactions between FB1 and ODMBA. When the zeolitic surface was completely covered with ODMBA (OZ-10), FB1 sorption was independent of the form of FB1 suggesting only interactions between ODMBA and FB1.
PB  - Elsevier, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Influence of natural zeolitic tuff and organozeolites surface charge on sorption of ionizable fumonisin B-1
EP  - 278
IS  - 1
SP  - 272
VL  - 76
DO  - 10.1016/j.colsurfb.2009.11.003
UR  - conv_577
ER  - 

@article{
author = "Daković, Aleksandra and Kragović, Milan and Rottinghaus, George E. and Sekulić, Živko and Milićević, Sonja and Milonjić, Slobodan K. and Zarić, Snežana",
year = "2010",
abstract = "Natural Zeolitic tuff was modified with 2, 5 and 10 mmol M+/100 g of octadecyldimethylbenzyl ammonium (ODMBA) ions and the products were denoted as OZ-2, OZ-5 and OZ-10. The starting material and organozeolites were characterized by determination of the point of zero charge (pH(pzc)) and by thermal analysis. in vitro sorption of fumonisin B-1 (FB1) was studied for all sorbents at pH 3, 7 and 9. The pH(pzc) for the zeolitic tuff was 6.8 +/- 0.1, while the pH(pzc) for OZ-2, OZ-5 and OZ-10 pH(pzc) was 7.0 +/- 0.1. The curves pH(final) = f(pH(initial)) suggest that the surfaces of all sorbents are positively charged at pH 3 and uncharged at pH 7 and 9. High sorption of FB1 by the zeolitic tuff in acidic solution Suggests electrostatic Interactions between the anionic FB1 and the positively charged surface. At pH 7 and 9, adsorption of FB1 is prevented because anionic FB1 cannot be adsorbed at the uncharged surface. From the pH(pzc) for the organozeolites, it is possible that with lower amounts of ODMBA (OZ-2 and OZ-5), at pH 3, beside interactions between head groups of ODMBA and its alkyl chains and anionic FB1, electrostatic interactions between positive uncovered surface and anionic FB1 contribute to the sorption, while at pH 7 and 9 there is only the possibility for interactions between FB1 and ODMBA. When the zeolitic surface was completely covered with ODMBA (OZ-10), FB1 sorption was independent of the form of FB1 suggesting only interactions between ODMBA and FB1.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Influence of natural zeolitic tuff and organozeolites surface charge on sorption of ionizable fumonisin B-1",
pages = "278-272",
number = "1",
volume = "76",
doi = "10.1016/j.colsurfb.2009.11.003",
url = "conv_577"
}

Daković, A., Kragović, M., Rottinghaus, G. E., Sekulić, Ž., Milićević, S., Milonjić, S. K.,& Zarić, S.. (2010). Influence of natural zeolitic tuff and organozeolites surface charge on sorption of ionizable fumonisin B-1. in Colloids and Surfaces B-Biointerfaces
Elsevier, Amsterdam., 76(1), 272-278.
https://doi.org/10.1016/j.colsurfb.2009.11.003
conv_577

Daković A, Kragović M, Rottinghaus GE, Sekulić Ž, Milićević S, Milonjić SK, Zarić S. Influence of natural zeolitic tuff and organozeolites surface charge on sorption of ionizable fumonisin B-1. in Colloids and Surfaces B-Biointerfaces. 2010;76(1):272-278.
doi:10.1016/j.colsurfb.2009.11.003
conv_577 .

Daković, Aleksandra, Kragović, Milan, Rottinghaus, George E., Sekulić, Živko, Milićević, Sonja, Milonjić, Slobodan K., Zarić, Snežana, "Influence of natural zeolitic tuff and organozeolites surface charge on sorption of ionizable fumonisin B-1" in Colloids and Surfaces B-Biointerfaces, 76, no. 1 (2010):272-278,
https://doi.org/10.1016/j.colsurfb.2009.11.003 .,
conv_577 .

TY  - JOUR
AU  - Matijašević, Srđan
AU  - Daković, Aleksandra
AU  - Ileš, Deana
AU  - Milićević, Sonja
PY  - 2009
UR  - https://ritnms.itnms.ac.rs/handle/123456789/162
AB  - U ovom radu prikazani su rezultati ispitivanja adsorpcije uranil-jona na zeolitskom mineralu klinoptilolitu modifikovanom tretmanom kiselinama. Adsorpcija je praćena pri različitim količinama čvrste faze u suspenziji kao i na različitim pH. Modifikacija je izvršena tretiranjem klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani klinoptiloliti su okarakterisani termičkom analizom (DTA/TGA), određivanjem hemijskog sastava i određivanjem sadržaja izmenljivih katjona, dok su polazne kao i neadsorbovane količine uranil-jona određivane fluorimetrijskom metodom. Određeno je da je adsorpcija niska na prirodnom zeolitskom mineralu, dok kiselinski tretman značajno povećava adsorpciju uranil-jona. Kod kiselinski tretiranih klinoptilolita najviši indeksi adsorpcije uranil-jona su postignuti na uzorku dobijenom modifikacijom sa hlorovodoničnom kiselinom.
AB  - In this paper, the results of adsorption of uranyl ion on acid-modified zeolitic mineral clinoptilolite are presented. Adsorption was investigated at different amounts of solid phase in suspension, as well as at different pH values. The modified clinoptilolite samples were obtained by treatment of clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified clinoptilolites were characterized by chemical analysis, thermal (DT/TG) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranyl ion were determined by fluorometric method. Uranyl ion adsorption experiments on natural unmodified zeolitic mineral showed that uranyl ion adsorption was low (29.2%) and that treatment of clinoptilolite with acids significantly increases the adsorption of uranyl ion (>90%). In the case of acid treated clinoptilolites, the highest adsorption of uranyl ion was achieved on clinoptilolite modified with hydrochloric acid. Kinetics of adsorption showed that adsorption of uranyl ion begins very fast and that the most of uranyl ion was adsorbed in first 30 min. Practically, there were no changes in uranyl ion adsorption within next 72 h.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Adsorpcija uranil-jona na modifikovanim klinoptilolitima
T1  - Adsorption of uranyl ion on acid-modified zeolitic mineral clinoptilolite
EP  - 414
IS  - 5
SP  - 407
VL  - 63
DO  - 10.2298/HEMIND0905407M
UR  - conv_294
ER  - 

@article{
author = "Matijašević, Srđan and Daković, Aleksandra and Ileš, Deana and Milićević, Sonja",
year = "2009",
abstract = "U ovom radu prikazani su rezultati ispitivanja adsorpcije uranil-jona na zeolitskom mineralu klinoptilolitu modifikovanom tretmanom kiselinama. Adsorpcija je praćena pri različitim količinama čvrste faze u suspenziji kao i na različitim pH. Modifikacija je izvršena tretiranjem klinoptilolita sa kiselinama: hlorovodoničnom, oksalnom i limunskom. Polazni i modifikovani klinoptiloliti su okarakterisani termičkom analizom (DTA/TGA), određivanjem hemijskog sastava i određivanjem sadržaja izmenljivih katjona, dok su polazne kao i neadsorbovane količine uranil-jona određivane fluorimetrijskom metodom. Određeno je da je adsorpcija niska na prirodnom zeolitskom mineralu, dok kiselinski tretman značajno povećava adsorpciju uranil-jona. Kod kiselinski tretiranih klinoptilolita najviši indeksi adsorpcije uranil-jona su postignuti na uzorku dobijenom modifikacijom sa hlorovodoničnom kiselinom., In this paper, the results of adsorption of uranyl ion on acid-modified zeolitic mineral clinoptilolite are presented. Adsorption was investigated at different amounts of solid phase in suspension, as well as at different pH values. The modified clinoptilolite samples were obtained by treatment of clinoptilolite with acids: hydrochloric, oxalyc and citric. Starting and modified clinoptilolites were characterized by chemical analysis, thermal (DT/TG) analysis and by determination of cation exchange capacity, while starting and nonadsorbed amounts of uranyl ion were determined by fluorometric method. Uranyl ion adsorption experiments on natural unmodified zeolitic mineral showed that uranyl ion adsorption was low (29.2%) and that treatment of clinoptilolite with acids significantly increases the adsorption of uranyl ion (>90%). In the case of acid treated clinoptilolites, the highest adsorption of uranyl ion was achieved on clinoptilolite modified with hydrochloric acid. Kinetics of adsorption showed that adsorption of uranyl ion begins very fast and that the most of uranyl ion was adsorbed in first 30 min. Practically, there were no changes in uranyl ion adsorption within next 72 h.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Adsorpcija uranil-jona na modifikovanim klinoptilolitima, Adsorption of uranyl ion on acid-modified zeolitic mineral clinoptilolite",
pages = "414-407",
number = "5",
volume = "63",
doi = "10.2298/HEMIND0905407M",
url = "conv_294"
}

Matijašević, S., Daković, A., Ileš, D.,& Milićević, S.. (2009). Adsorpcija uranil-jona na modifikovanim klinoptilolitima. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 63(5), 407-414.
https://doi.org/10.2298/HEMIND0905407M
conv_294

Matijašević S, Daković A, Ileš D, Milićević S. Adsorpcija uranil-jona na modifikovanim klinoptilolitima. in Hemijska industrija. 2009;63(5):407-414.
doi:10.2298/HEMIND0905407M
conv_294 .

Matijašević, Srđan, Daković, Aleksandra, Ileš, Deana, Milićević, Sonja, "Adsorpcija uranil-jona na modifikovanim klinoptilolitima" in Hemijska industrija, 63, no. 5 (2009):407-414,
https://doi.org/10.2298/HEMIND0905407M .,
conv_294 .

TY  - JOUR
AU  - Daković, Aleksandra
AU  - Sekulić, Živko
AU  - Rottinghaus, George E.
AU  - Stojanović, Ana
AU  - Milićević, Sonja
AU  - Kragović, Milan
PY  - 2009
UR  - https://ritnms.itnms.ac.rs/handle/123456789/159
AB  - U ovom radu su prikazani rezultati ispitivanja adsorpcije T-2 toksina na mineralu iz grupe smektita-hektoritu, na različitim pH vrednostima (3,0; 7,0 i 9,0). Ispitivanja su pokazala da adsorbovana količina T-2 toksina na hektoritu opada sa porastom sadržaja čvrste faze u suspenziji na svim ispitivanim pH vrednostima. Sa adsorpcionih izotermi se primećuje da sa povećanjem početne koncentracije T-2 toksina raste i adsorpcija T-2 toksina, na svim ispitivanim pH vrednostima. Adsorpcija T-2 toksina na hektoritu se može opisati nelinearanim (Lengmir, Langmuir) tipom izoterme na pH 3,0; 7,0 i 9,0, pri čemu faktor korelacije (r2) iznosi 0,943 na pH 3,0; 0,919 na pH 7,0 i 0,939 na pH 9,0. Maksimalna adsorbovana količina T-2 toksina na hektoritu na osnovu Lengmirove izoterme (9,178 mg g-1 na pH 3,0; 9,930 mg g-1 na pH 7,0 i 19,341 mg g-1 na pH 9,0), ukazuje da je adsorpcija T-2 toksina na hektoritu zavisna od pH. Dobijeni rezultati ukazuju na postojanje specifičnih aktivnih centara na hektoritu na kojima se T-2 toksin adorbuje.
AB  - The adsorption of T-2 toxin by the natural smectite mineral-hectorite at pH 3.0, 7.0 and 9.0 was investigated. The results of T-2 toxin adsorption on hectorite showed that the T-2 adsorption capacity decreased with increasing concentration of adsorbent in the suspension for all the investigated pH values. From the adsorption isotherms, an increase in T-2 toxin adsorption with increasing initial T-2 toxin concentration was observed for all the investigated pH values. The T-2 toxin adsorption by hectorite followed a non-linear (Langmuir) type of isotherm at pH 3.0, 7.0 and 9.0, with correlation coefficients (r2) of 0.943 at pH 3.0, 0.919 at pH 7.0 and 0.939 at pH 9.0. The estimated maximum T-2 toxin adsorption by hectorite based on the Langmuir fit to the data (9.178 mg/g at pH 3.0, 9.930 mg/g at pH 7.0, and 19.341 mg/g at pH 9.0), indicated that the adsorption of T-2 toxin by hectorite is pH dependent. The obtained data suggest the existence of specific active sites in hectorite onto which the T-2 toxin is adsorbed.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Adsorpcija T-2 toksina na hektoritu
T1  - T-2 toxin adsorption by hectorite
EP  - 1292
IS  - 11
SP  - 1283
VL  - 74
DO  - 10.2298/JSC0911283D
UR  - conv_571
ER  - 

@article{
author = "Daković, Aleksandra and Sekulić, Živko and Rottinghaus, George E. and Stojanović, Ana and Milićević, Sonja and Kragović, Milan",
year = "2009",
abstract = "U ovom radu su prikazani rezultati ispitivanja adsorpcije T-2 toksina na mineralu iz grupe smektita-hektoritu, na različitim pH vrednostima (3,0; 7,0 i 9,0). Ispitivanja su pokazala da adsorbovana količina T-2 toksina na hektoritu opada sa porastom sadržaja čvrste faze u suspenziji na svim ispitivanim pH vrednostima. Sa adsorpcionih izotermi se primećuje da sa povećanjem početne koncentracije T-2 toksina raste i adsorpcija T-2 toksina, na svim ispitivanim pH vrednostima. Adsorpcija T-2 toksina na hektoritu se može opisati nelinearanim (Lengmir, Langmuir) tipom izoterme na pH 3,0; 7,0 i 9,0, pri čemu faktor korelacije (r2) iznosi 0,943 na pH 3,0; 0,919 na pH 7,0 i 0,939 na pH 9,0. Maksimalna adsorbovana količina T-2 toksina na hektoritu na osnovu Lengmirove izoterme (9,178 mg g-1 na pH 3,0; 9,930 mg g-1 na pH 7,0 i 19,341 mg g-1 na pH 9,0), ukazuje da je adsorpcija T-2 toksina na hektoritu zavisna od pH. Dobijeni rezultati ukazuju na postojanje specifičnih aktivnih centara na hektoritu na kojima se T-2 toksin adorbuje., The adsorption of T-2 toxin by the natural smectite mineral-hectorite at pH 3.0, 7.0 and 9.0 was investigated. The results of T-2 toxin adsorption on hectorite showed that the T-2 adsorption capacity decreased with increasing concentration of adsorbent in the suspension for all the investigated pH values. From the adsorption isotherms, an increase in T-2 toxin adsorption with increasing initial T-2 toxin concentration was observed for all the investigated pH values. The T-2 toxin adsorption by hectorite followed a non-linear (Langmuir) type of isotherm at pH 3.0, 7.0 and 9.0, with correlation coefficients (r2) of 0.943 at pH 3.0, 0.919 at pH 7.0 and 0.939 at pH 9.0. The estimated maximum T-2 toxin adsorption by hectorite based on the Langmuir fit to the data (9.178 mg/g at pH 3.0, 9.930 mg/g at pH 7.0, and 19.341 mg/g at pH 9.0), indicated that the adsorption of T-2 toxin by hectorite is pH dependent. The obtained data suggest the existence of specific active sites in hectorite onto which the T-2 toxin is adsorbed.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Adsorpcija T-2 toksina na hektoritu, T-2 toxin adsorption by hectorite",
pages = "1292-1283",
number = "11",
volume = "74",
doi = "10.2298/JSC0911283D",
url = "conv_571"
}

Daković, A., Sekulić, Ž., Rottinghaus, G. E., Stojanović, A., Milićević, S.,& Kragović, M.. (2009). Adsorpcija T-2 toksina na hektoritu. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 74(11), 1283-1292.
https://doi.org/10.2298/JSC0911283D
conv_571

Daković A, Sekulić Ž, Rottinghaus GE, Stojanović A, Milićević S, Kragović M. Adsorpcija T-2 toksina na hektoritu. in Journal of the Serbian Chemical Society. 2009;74(11):1283-1292.
doi:10.2298/JSC0911283D
conv_571 .

Daković, Aleksandra, Sekulić, Živko, Rottinghaus, George E., Stojanović, Ana, Milićević, Sonja, Kragović, Milan, "Adsorpcija T-2 toksina na hektoritu" in Journal of the Serbian Chemical Society, 74, no. 11 (2009):1283-1292,
https://doi.org/10.2298/JSC0911283D .,
conv_571 .

TY  - JOUR
AU  - Daković, Aleksandra
AU  - Matijašević, Srđan
AU  - Rottinghaus, George E.
AU  - Ledoux, David R.
AU  - Butkeraitis, Paula
AU  - Sekulić, Živko
PY  - 2008
UR  - https://ritnms.itnms.ac.rs/handle/123456789/131
AB  - Adsorption of aflatoxin B-1 (AFB1) by natural montmorillonite (MONT) and montmorillonite modified with copper ions (Cu-MONT) was investigated. Both MONTs were characterized using the X-ray powder diffraction (XRPD) analysis, thermal analysis (DTA/TGA) and scanning electron miscroscopy/electron dispersive spectroscopy (SEM/EDS). The results of XRPD and SEM/EDS analyses of Cu-MONT suggested partial ion exchange of native inorganic cations in MONT with copper occurred. Investigation of AFB1 adsorption by MONT and Cu-MONT, at pH 3, 7 or 9, showed that adsorption of this toxin by both MONTs was high (over 93%). Since AFB1 is nonionizable, no differences in AFB1 adsorption by both MONTs, at different pHs, were observed, as expected. Futhermore, it was determined that adsorption of AFB1 by both MONTs followed a non-linear (Langmuir) type of isotherm, at pH 3. The calculated maximum adsorbed amounts of AFB1 by MONT (40.982 mg/g) and Cu-MONT (66.225 mg/g), derived from Langmuir plots of isotherms, indicate that Cu-MONT was much effective in adsorbing AFB1. Since, the main cation in an exchangeable position in MONT is calcium, and in Cu-MONT both calcium and copper, the fact that ion exchange of inorganic cations in MONT with copper increases adsorption of AFB1 suggests that additional interactions between AFB1 and copper ions in Cu-MONT caused greater adsorption.
PB  - Elsevier, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Aflatoxin B-1 adsorption by natural and copper modified montmorillonite
EP  - 25
IS  - 1
SP  - 20
VL  - 66
DO  - 10.1016/j.colsurfb.2008.05.008
UR  - conv_550
ER  - 

@article{
author = "Daković, Aleksandra and Matijašević, Srđan and Rottinghaus, George E. and Ledoux, David R. and Butkeraitis, Paula and Sekulić, Živko",
year = "2008",
abstract = "Adsorption of aflatoxin B-1 (AFB1) by natural montmorillonite (MONT) and montmorillonite modified with copper ions (Cu-MONT) was investigated. Both MONTs were characterized using the X-ray powder diffraction (XRPD) analysis, thermal analysis (DTA/TGA) and scanning electron miscroscopy/electron dispersive spectroscopy (SEM/EDS). The results of XRPD and SEM/EDS analyses of Cu-MONT suggested partial ion exchange of native inorganic cations in MONT with copper occurred. Investigation of AFB1 adsorption by MONT and Cu-MONT, at pH 3, 7 or 9, showed that adsorption of this toxin by both MONTs was high (over 93%). Since AFB1 is nonionizable, no differences in AFB1 adsorption by both MONTs, at different pHs, were observed, as expected. Futhermore, it was determined that adsorption of AFB1 by both MONTs followed a non-linear (Langmuir) type of isotherm, at pH 3. The calculated maximum adsorbed amounts of AFB1 by MONT (40.982 mg/g) and Cu-MONT (66.225 mg/g), derived from Langmuir plots of isotherms, indicate that Cu-MONT was much effective in adsorbing AFB1. Since, the main cation in an exchangeable position in MONT is calcium, and in Cu-MONT both calcium and copper, the fact that ion exchange of inorganic cations in MONT with copper increases adsorption of AFB1 suggests that additional interactions between AFB1 and copper ions in Cu-MONT caused greater adsorption.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Aflatoxin B-1 adsorption by natural and copper modified montmorillonite",
pages = "25-20",
number = "1",
volume = "66",
doi = "10.1016/j.colsurfb.2008.05.008",
url = "conv_550"
}

Daković, A., Matijašević, S., Rottinghaus, G. E., Ledoux, D. R., Butkeraitis, P.,& Sekulić, Ž.. (2008). Aflatoxin B-1 adsorption by natural and copper modified montmorillonite. in Colloids and Surfaces B-Biointerfaces
Elsevier, Amsterdam., 66(1), 20-25.
https://doi.org/10.1016/j.colsurfb.2008.05.008
conv_550

Daković A, Matijašević S, Rottinghaus GE, Ledoux DR, Butkeraitis P, Sekulić Ž. Aflatoxin B-1 adsorption by natural and copper modified montmorillonite. in Colloids and Surfaces B-Biointerfaces. 2008;66(1):20-25.
doi:10.1016/j.colsurfb.2008.05.008
conv_550 .

Daković, Aleksandra, Matijašević, Srđan, Rottinghaus, George E., Ledoux, David R., Butkeraitis, Paula, Sekulić, Živko, "Aflatoxin B-1 adsorption by natural and copper modified montmorillonite" in Colloids and Surfaces B-Biointerfaces, 66, no. 1 (2008):20-25,
https://doi.org/10.1016/j.colsurfb.2008.05.008 .,
conv_550 .

TY  - JOUR
AU  - Stojanović, Ana
AU  - Daković, Aleksandra
AU  - Matijašević, Srđan
AU  - Rottinghaus, George E.
AU  - Sekulić, Živko
AU  - Stanić, Tanja
PY  - 2008
UR  - https://ritnms.itnms.ac.rs/handle/123456789/124
AB  - U ovom radu su prikazani rezultati ispitivanja adsorpcije T-2 toksina na različitim mineralnim adsorbentima, zaolitu-klinoptilolitu kao i na smektitskoj grupi minerala - bentonitu i hektoritu. Polazni uzorci koji su korišćeni u eksperimantima adsorpcije okarakterisani su uobičajenim metodama kojima se određuje kvalitet alumosilikatnih minerala: rendgensko difrakcionom analizom praha (XRPD), određivanjem hemijskog sastava, kao i određivanjem vrste i sadržaja izmenjivih katjona. U preliminarnim eksperimentima (pH 3), po indeksu adsorpcije T-2 toksina (95%), ističe se mineral hektorit, dok je na prirodnom zeolitu i bentonitu, adsorpcija ovog toksina niska (8 i 13%, respektivno). Rezultati adsopcije T-2 toksina na hektoritu, pri različitim masenim odnosima adsorbent: toksin, pokazali su da indeks adsorpcije raste sa porastom sadržaja čvrste faze u suspenziji, kako na pH 3, tako i na pH 7 i 9. Pri promeni pH vrednosti sredine nisu uočene značajnije razlike u adsorpciji T-2 toksina na hektoritu.
AB  - The contamination of animal feed with mycotoxins represents a worldwide problem leading to economic losses in animal production. According to the Food and Agriculture Organization (FAO), 25% of the world's cereal grain production is contaminated with mycotoxins. The most common mycotoxins found in grains are the aflatoxins, ochratoxins, fumonisins, trichothecenes, zearalenone and the ergopeptine alkaloids. Trichothecenes, constitute the largest group of Fusarium mycotoxins. Among others, T-2 toxin is the most acute toxic trichothecene. In this paper, adsorption of T-2 toxin by natural mineral adsorbents zeolite-clinop-tilolite and smectite minerals - bentonite and hectorite, at pH 3 was investigated. The highest adsorption index was achieved for hectorite (95%), while clinoptilolite and bentonite showed low adsorption index for T-2 toxin, 8% and 13%, respectively. Results of T-2 toxin adsorption on hectorite, at different amount of solid phase in suspension, and at pH 3, 7 and 9, showed that toxin adsorption indexes increased with increase of adsorbent concentration in suspension, at all investigated pH values. No significant differences in T-2 toxin adsorption by hectorite, at pH 3, 7 and 9 were observed.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Adsorpcija T-2 toksina mineralnim adsorbentima
T1  - Adsorption of T-2 toxin by natural mineral adsorbents
EP  - 63
IS  - 2
SP  - 59
VL  - 62
DO  - 10.2298/HEMIND0802059S
UR  - conv_291
ER  - 

@article{
author = "Stojanović, Ana and Daković, Aleksandra and Matijašević, Srđan and Rottinghaus, George E. and Sekulić, Živko and Stanić, Tanja",
year = "2008",
abstract = "U ovom radu su prikazani rezultati ispitivanja adsorpcije T-2 toksina na različitim mineralnim adsorbentima, zaolitu-klinoptilolitu kao i na smektitskoj grupi minerala - bentonitu i hektoritu. Polazni uzorci koji su korišćeni u eksperimantima adsorpcije okarakterisani su uobičajenim metodama kojima se određuje kvalitet alumosilikatnih minerala: rendgensko difrakcionom analizom praha (XRPD), određivanjem hemijskog sastava, kao i određivanjem vrste i sadržaja izmenjivih katjona. U preliminarnim eksperimentima (pH 3), po indeksu adsorpcije T-2 toksina (95%), ističe se mineral hektorit, dok je na prirodnom zeolitu i bentonitu, adsorpcija ovog toksina niska (8 i 13%, respektivno). Rezultati adsopcije T-2 toksina na hektoritu, pri različitim masenim odnosima adsorbent: toksin, pokazali su da indeks adsorpcije raste sa porastom sadržaja čvrste faze u suspenziji, kako na pH 3, tako i na pH 7 i 9. Pri promeni pH vrednosti sredine nisu uočene značajnije razlike u adsorpciji T-2 toksina na hektoritu., The contamination of animal feed with mycotoxins represents a worldwide problem leading to economic losses in animal production. According to the Food and Agriculture Organization (FAO), 25% of the world's cereal grain production is contaminated with mycotoxins. The most common mycotoxins found in grains are the aflatoxins, ochratoxins, fumonisins, trichothecenes, zearalenone and the ergopeptine alkaloids. Trichothecenes, constitute the largest group of Fusarium mycotoxins. Among others, T-2 toxin is the most acute toxic trichothecene. In this paper, adsorption of T-2 toxin by natural mineral adsorbents zeolite-clinop-tilolite and smectite minerals - bentonite and hectorite, at pH 3 was investigated. The highest adsorption index was achieved for hectorite (95%), while clinoptilolite and bentonite showed low adsorption index for T-2 toxin, 8% and 13%, respectively. Results of T-2 toxin adsorption on hectorite, at different amount of solid phase in suspension, and at pH 3, 7 and 9, showed that toxin adsorption indexes increased with increase of adsorbent concentration in suspension, at all investigated pH values. No significant differences in T-2 toxin adsorption by hectorite, at pH 3, 7 and 9 were observed.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Adsorpcija T-2 toksina mineralnim adsorbentima, Adsorption of T-2 toxin by natural mineral adsorbents",
pages = "63-59",
number = "2",
volume = "62",
doi = "10.2298/HEMIND0802059S",
url = "conv_291"
}

Stojanović, A., Daković, A., Matijašević, S., Rottinghaus, G. E., Sekulić, Ž.,& Stanić, T.. (2008). Adsorpcija T-2 toksina mineralnim adsorbentima. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 62(2), 59-63.
https://doi.org/10.2298/HEMIND0802059S
conv_291

Stojanović A, Daković A, Matijašević S, Rottinghaus GE, Sekulić Ž, Stanić T. Adsorpcija T-2 toksina mineralnim adsorbentima. in Hemijska industrija. 2008;62(2):59-63.
doi:10.2298/HEMIND0802059S
conv_291 .

Stojanović, Ana, Daković, Aleksandra, Matijašević, Srđan, Rottinghaus, George E., Sekulić, Živko, Stanić, Tanja, "Adsorpcija T-2 toksina mineralnim adsorbentima" in Hemijska industrija, 62, no. 2 (2008):59-63,
https://doi.org/10.2298/HEMIND0802059S .,
conv_291 .