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An investigation of cadmium(II) and nickel(II) adsorption by chitin graft covolymer

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dc.contributor.authorJose, A. R.
dc.contributor.authorBach, E. E.
dc.contributor.authorVargas, R. R.
dc.contributor.authorSoares, A. W.
dc.contributor.authorDe Queiroz, AAA
dc.contributor.institutionUniv Fed Itajuba
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:25:46Z
dc.date.available2014-05-20T15:25:46Z
dc.date.issued2004-04-15
dc.description.abstractChitin hydrogels of poly(vinylpyrrolidone) (VP) were prepared by means of the hydrogen peroxide graft copolymerization process. The effect of the VP grafted chain on water diffusion through the biopolymer was studied. Fourier transform infrared spectra of the VP-g-Ch showed an increase in the intensities of the hydroxyl and carbonyl stretching bands indicating a reduction in the hydrogen bonding of chitin. An investigation was undertaken regarding the adsorption of nickel(II) and cadmium(II) ions from aqueous solutions by the VP grafted chitin and the effects of the grafting degree on the Cd2+ and Ni2+ sorption were studied. The Cd2+ and Ni2+ adsorption equilibrium data correlate well with the Freundlich equation. The results indicate that the Ch-g-VP graft copolymer under investigation is a potentially powerful chelating material that can be employed for Ni2+ and Cd2+ ion removal from wastewater effluents. (C) 2004 Wiley Periodicals, Inc.en
dc.description.affiliationUniv Fed Itajuba, Dept Quim & Fis, Inst Ciências, BR-37500903 Itajuba, MG, Brazil
dc.description.affiliationUSP, Dept Quim Fundamental, IQ, São Paulo, Brazil
dc.description.affiliationUNESP, IQ Programa Pos Grad Biotecnol, Araraquara, Brazil
dc.description.affiliationUnespUNESP, IQ Programa Pos Grad Biotecnol, Araraquara, Brazil
dc.format.extent1310-1318
dc.identifierhttp://dx.doi.org/10.1002/app.20114
dc.identifier.citationJournal of Applied Polymer Science. Hoboken: John Wiley & Sons Inc., v. 92, n. 2, p. 1310-1318, 2004.
dc.identifier.doi10.1002/app.20114
dc.identifier.issn0021-8995
dc.identifier.urihttp://hdl.handle.net/11449/36119
dc.identifier.wosWOS:000220029400075
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.ispartofjcr1.901
dc.relation.ispartofsjr0,543
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectgraft copolymerspt
dc.subjecthydrogelspt
dc.subjectchitinpt
dc.subjectmetal-polymer complexespt
dc.subjectcadmium(II) and nickel (II) sorptionpt
dc.titleAn investigation of cadmium(II) and nickel(II) adsorption by chitin graft covolymeren
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
dspace.entity.typePublication

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