Uklanjanje uranil-jona iz rastvora kiselo tretiranim zeolitima
Removal of uranium (VI) from aqueous solution by acid modified zeolites

2016
Authors
Matijašević, Srđan
Zildžović, Snežana

Stojanović, Jovica

Đošić, Marija

Nikolić, Jelena

Stojanović, Mirjana

Labus, Nebojša

Article (Published version)
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Show full item recordAbstract
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.
Keywords:
zeolit-klinoptilolit / modifikacija kiselinom / adsorpcija uranil-jona / zeolite - clinoptilolite / uranium(VI) adsorption / acid modificationSource:
Zaštita materijala, 2016, 57, 4, 551-558Publisher:
- Inženjersko društvo za koroziju, Beograd
Funding / projects:
- Fizičko-hemijski fenomeni površina alumosilikatnih minerala - osnova za razvoj novih ekoloških materijala (RS-142057)
- The development of glasses with controlled ions release for application in agriculture and medicine (RS-34001)
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Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - 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 .