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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleAdsorption of arsenic(V) into modified lamellar Kenyaitept_BR
dc.contributor.authorGuerra, DLpt_BR
dc.contributor.authorAiroldi, Cpt_BR
dc.contributor.authorViana, RRpt_BR
unicamp.author.emaildlguerra@iqm.unicamp.brpt_BR
unicamp.authorGuerra, Denis Lima Airoldi, Claudio Univ Estadual Campinas, Inst Quim, BR-13084971 Campinas, SP, Brazilpt_BR
unicamp.authorViana, Ruba Ribeiro Univ Fed Matogrosso UFMT, Ctr Recursos Min, BR-68060900 Cuiaba, Matogrosso, Brazilpt_BR
dc.subjectKenyaitept_BR
dc.subjectIntercalation reactionpt_BR
dc.subjectArsenicpt_BR
dc.subjectThermodynamic propertiespt_BR
dc.subject.wosSilica-gelpt_BR
dc.subject.wosCation Removalpt_BR
dc.subject.wosMontmorillonitept_BR
dc.subject.wosIntercalationpt_BR
dc.subject.wosAcidpt_BR
dc.subject.wosAdsorbentpt_BR
dc.subject.wosSorptionpt_BR
dc.subject.wosMercurypt_BR
dc.subject.wosSurfacept_BR
dc.subject.wosWaterpt_BR
dc.description.abstractThe synthetic Kenyaite sample was used for organofunctionalization process with N-propyldiethylenetrimethoxysilane and bis[3-(triethoxysilyl)propyl]tetrasulfide. The resulted materials were submitted to process of adsorption with arsenic solution at pH 2.0 and 298 +/- 1 K. The adsorption isotherms were adjusted using a modified Langmuir equation with regression non-linear; the net thermal effects obtained from calorimetric titration measurements were adjusted to a modified Langmuir equation. The adsorption process was exothermic (Delta(int)H = -4.08 to -5.94 kJ mol(-1)) accompanied by increase in entropy (Delta(int)S = 41.29-62.09 J K(-1) mol(-1))and Gibbs energy (Delta(int)G = -22.33 to -24.45 kJ mol(-1)). The energetic effect caused by metal cation adsorption was determined through calorimetric titration at the solid-liquid interface and gave a net thermal effect that enabled the calculation of the exothermic Values and the equilibrium constant. (C) 2008 Published by Elsevier B.V.pt
dc.relation.ispartofJournal Of Hazardous Materialspt_BR
dc.relation.ispartofabbreviationJ. Hazard. Mater.pt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryHolandapt_BR
dc.publisherElsevier Science Bvpt_BR
dc.date.issued2009pt_BR
dc.date.monthofcirculationAPR 30pt_BR
dc.identifier.citationJournal Of Hazardous Materials. Elsevier Science Bv, v. 163, n. 41700, n. 1391, n. 1396, 2009.pt_BR
dc.language.isoenpt_BR
dc.description.volume163pt_BR
dc.description.issuenumber41700pt_BR
dc.description.firstpage1391pt_BR
dc.description.lastpage1396pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policypt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0304-3894pt_BR
dc.identifier.wosidWOS:000264160000121pt_BR
dc.identifier.doi10.1016/j.jhazmat.2008.06.095pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsordocumentnumberCNPq [150060/2006-8]pt
dc.date.available2014-11-15T10:59:19Z
dc.date.available2015-11-26T17:19:26Z-
dc.date.accessioned2014-11-15T10:59:19Z
dc.date.accessioned2015-11-26T17:19:26Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T17:19:26Z (GMT). No. of bitstreams: 2 WOS000264160000121.pdf: 593405 bytes, checksum: 05b06ee035e8e3634f23306ec302d8a4 (MD5) WOS000264160000121.pdf.txt: 25388 bytes, checksum: e3855c3165010c51f74fcbff8b15f31e (MD5) Previous issue date: 2009en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/76864pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/76864
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/76864-
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