Removal of Cd(II), Hg(II), and MID ions from aqueous solution using p(HEMA/Chitosan) membranes

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dc.contributor.authorBayramoğlu, Gülay
dc.contributor.authorArica, M. Yakup
dc.contributor.authorBektaş, Sema
dc.date.accessioned2020-06-25T17:43:37Z
dc.date.available2020-06-25T17:43:37Z
dc.date.issued2007
dc.description.abstractAn interpenetration network (IPN) was synthesized from 2-hydroxyethyl methacrylate (HEMA) and chitosan, p(HEMA/chitosan) via UV-initiated photo-polymerization. The selectivity to different heavy metal ions viz Cd(II), Pb(II), and Hg(II) to the IPN membrane has been investigated from aqueous solution using bare pHEMA membrane as a control system. Removal efficiency of metal ions from aqueous solution using the IPN membranes increased with increasing chitosan content and initial metal ions concentrations, and the equilibrium time was reached within 60 min. Adsorption of all the tested heavy metal ions on the IPN membranes was found to be pH dependent and maximum adsorption was obtained at pH 5.0. The maximum adsorption capacities of the IPN membrane for Cd(II), Pb(II), and Hg(II) were 0.063, 0.179, and 0.197 mmol/g membrane, respectively. The adsorption of the Cd(II), Hg(II), and Pb(II) metal ions on the bare pHEMA membrane was not significant. When the heavy metal ions were in competition, the amounts of adsorbed metal ions were found to be 0.035 mmol/g for Cd(II), 0.074 mmol/g for Hg(II), and 0.153 mmol/g for Pb(II), the IPN membrane is significantly selective for Pb(II) ions. The stability constants of IPN membrane-metal ions complexes were calculated by the method of Ruzic. The results obtained from the kinetics and isotherm studies showed that the experimental data for the removal of heavy metal ions were well described with the second-order kinetic equations and the Langmuir isotherm model. (c) 2007 Wiley Periodicals, Inc.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1002/app.26704
dc.identifier.endpage177en_US
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-34548489201
dc.identifier.scopusqualityQ2
dc.identifier.startpage169en_US
dc.identifier.urihttps://doi.org10.1002/app.26704
dc.identifier.urihttps://hdl.handle.net/20.500.12587/3825
dc.identifier.volume106en_US
dc.identifier.wosWOS:000248609900023
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWileyen_US
dc.relation.ispartofJournal Of Applied Polymer Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectpHEMAen_US
dc.subjectchitosanen_US
dc.subjectheavy metalen_US
dc.subjectIPNen_US
dc.subjectadsorptionen_US
dc.subjectkineticsen_US
dc.subjectremovalen_US
dc.subjectequilibriumen_US
dc.titleRemoval of Cd(II), Hg(II), and MID ions from aqueous solution using p(HEMA/Chitosan) membranesen_US
dc.typeArticle

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