Comparative adsorption of Ni(II) and Cd(II) ions on epichlorohydrin crosslinked chitosan-clay composite beads in aqueous solution

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dc.contributor.authorTirtom V.N.
dc.contributor.authorDinçer A.
dc.contributor.authorBecerik S.
dc.contributor.authorAydemir T.
dc.contributor.authorÇelik A.
dc.date.accessioned2024-07-22T08:19:16Z
dc.date.available2024-07-22T08:19:16Z
dc.date.issued2012
dc.description.abstractRemoval of Ni(II) and Cd(II) by adsorption on epichlorohydrin crosslinked chitosan-clay composite beads was examined in solutions representative of contaminated solutions containing heavy metals. Several important parameters influencing the adsorption of Ni(II) and Cd(II) ions such as contact time, pH, temperature and effect of metal concentration were investigated systematically by batch experiments. Langmuir and Freundlich adsorption models were used to describe adsorption isotherms and constants. The obtained results showed that the equilibrium adsorption behavior of Ni (II) and Cd (II) on epichlorohydrin crosslinked chitosan-clay composite beads could be applied to Langmuir and Freundlich models respectively. Maximum adsorption capacities for Ni(II) and Cd(II) ions were found as 32.36mgg-1 and 72.31mgg-1 respectively. The recovery of the metal ions after adsorption and the regeneration of the adsorbent was carried out by treatment of the loaded beads with either 0.1M HNO3, or 0.01M EDTA. The adsorbents were characterized by FTIR, SEM and TGA analysis. © 2012 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.cej.2012.05.059
dc.identifier.issn13858947
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/17606
dc.language.isoEnglish
dc.subjectAdsorbents
dc.subjectAdsorption
dc.subjectCadmium
dc.subjectChitosan
dc.subjectClay
dc.subjectGeologic models
dc.subjectHeavy metals
dc.subjectMetal ions
dc.subjectpH effects
dc.subjectAdsorption capacities
dc.subjectBatch experiments
dc.subjectComparative adsorption
dc.subjectComposite beads
dc.subjectContact time
dc.subjectContaminated solutions
dc.subjectCrosslinked
dc.subjectEffect of metal concentration
dc.subjectEpichlorohydrin
dc.subjectEquilibrium adsorption
dc.subjectFreundlich models
dc.subjectFTIR
dc.subjectLangmuir and freundlich adsorption
dc.subjectLangmuirs
dc.subjectCadmium compounds
dc.titleComparative adsorption of Ni(II) and Cd(II) ions on epichlorohydrin crosslinked chitosan-clay composite beads in aqueous solution
dc.typeArticle

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