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dc.creatorMaksin, Danijela
dc.creatorNastasović, Aleksandra
dc.creatorMilutinović Nikolić, Aleksandra
dc.creatorSurucic, Ljiljana T.
dc.creatorSandic, Zvjezdana P.
dc.creatorHercigonja, Radmila V.
dc.creatorOnjia, Antonije E.
dc.date.accessioned2019-01-30T17:30:54Z
dc.date.available2019-01-30T17:30:54Z
dc.date.issued2012
dc.identifier.issn0304-3894
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1028
dc.description.abstractTwo porous and one non-porous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were prepared by suspension copolymerization and functionalized with diethylene triamine [abbreviated PGME-deta]. Samples were characterized by elemental analysis, mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Kinetics of Cr(VI) sorption by PGME-deta were investigated in batch static experiments, in the temperature range 25-70 degrees C. Sorption was rapid, with the uptake capacity higher than 80% after 30 min. Sorption behavior and rate-controlling mechanisms were analyzed using five kinetic models (pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion and Bangham model). Kinetic studies showed that Cr(VI) adsorption adhered to the pseudo-second-order model, with definite influence of pore diffusion. Equilibrium data was tested with Langmuir, Freundlich and Tempkin adsorption isotherm models. Langmuir model was the most suitable indicating homogeneous distribution of active sites on PGME-deta and monolayer sorption. The maximum adsorption capacity from the Langmuir model, Q(max),at pH 1.8 and 25 degrees C was 143 mg g(-1) for PGME2-deta (sample with the highest amino group concentration) while at 70 degrees C Q(max) reached the high value of 198 mg g(-1). Thermodynamic parameters revealed spontaneous and endothermic nature of Cr(VI) adsorption onto PGME-deta.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43009/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172018/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Hazardous Materials
dc.subjectChromium(VI) sorptionen
dc.subjectGlycidyl methacrylateen
dc.subjectDiethylene triamineen
dc.subjectSorption kineticsen
dc.subjectEquilibrium isothermsen
dc.titleEquilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymersen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractХерцигоња, Радмила В.; Сандиц, Звјездана П.; Оњиа, Aнтоније Е.; Настасовић, Aлександра; Милутиновић Николић, Aлександра; Максин, Данијела Д.; Суруциц, Љиљана Т.;
dc.citation.volume209
dc.citation.spage99
dc.citation.epage110
dc.citation.other209: 99-110
dc.citation.rankaM21
dc.identifier.pmid22284173
dc.identifier.doi10.1016/j.jhazmat.2011.12.079
dc.identifier.rcubConv_2769
dc.identifier.scopus2-s2.0-84857369138
dc.identifier.wos000301884700013
dc.type.versionpublishedVersion


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