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dc.creatorAntic, Katarina M.
dc.creatorBabic, Marija M.
dc.creatorVukovic, Jovana S.
dc.creatorOnjia, Antonije E.
dc.creatorFilipović, Jovanka M.
dc.creatorTomic, Simonida Lj.
dc.date.accessioned2018-03-01T17:21:48Z
dc.date.available2018-03-01T17:21:48Z
dc.date.issued2016
dc.identifier.issn0367-598X (print)
dc.identifier.issn2217-7426 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1394
dc.description.abstractA series of poly(2-hydroxyethyl acrylate-co-itaconic acid), P(HEA/IA), hydrogels with different HEA/IA ratio, were synthesized using free radical crosslinking/copolymerization and investigated as sorbents for Pb2+ from aqueous solutions. Hydrogels were characterized using DMA, FTIR, DSC, SEM and AFM. The adsorption was found to be highly dependent on hydrogel composition, solution pH, sorbent weight, ionic strength and contact time. Five isotherm models, Langmuir, Freundlich, Redlich-Peterson, Temkin and Dubinin-Radushkevich, were applied to the sorption data. The best fit was obtained with Redlich-Peterson isotherm. The separation factor, RL, value indicated favorable sorption for Pb2+. The maximum sorption capacities were 392.2 and 409.8 mg/g for P(HEA/2IA) and P(HEA/10IA), respectively. Kinetic data showed best fit with pseudo-second-order model. Thermodynamic studies revealed that the reaction was exothermic and proceeds with a decrease in entropy. Moreover, P(HEA/IA) hydrogel showed the most pronounced sorption toward Pb2+ from environment containing Cu2+, Zn2+, Cd2+, Ni2+ and Co2+. Sorption/desorption experiments, showed that the P(HEA/IA) hydrogels could be reused without significant loss of the initial properties even after three adsorption-desorption cycles.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172015/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172062/RS//
dc.rightsopenAccessen
dc.sourceHemijska industrijaen
dc.subjecthydrogelen
dc.subjectitaconic aciden
dc.subjectreusabilityen
dc.subjectlead removalen
dc.titleRemoval of Pb2+ from aqueous solution by P(HEA/IA) hydrogelsen
dc.typearticleen
dcterms.abstractВуковиц, Јована С.; Томиц, Симонида Љ.; Aнтиц, Катарина М.; Бабиц, Марија М.; Филиповиц, Јованка М.; Оњиа, Aнтоније Е.;
dc.citation.volume70
dc.citation.issue6
dc.citation.spage695
dc.citation.epage705
dc.identifier.wos000392310700009
dc.identifier.doi10.2298/HEMIND151225006A
dc.citation.rankM23
dc.identifier.scopus2-s2.0-85011844266
dc.identifier.fulltexthttp://vinar.vin.bg.ac.rs//bitstream/id/11773/1390.pdf


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