Multilayer adsorption of Cu(II) and Cd(II) over Brazilian Orchid Tree (Pata-de-vaca) and its adsorptive properties

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dc.contributor.authorJorgetto, Alexandre de Oliveira [UNESP]
dc.contributor.authorSilva, Adrielli Cristina Peres da [UNESP]
dc.contributor.authorWondracek, Marcos Henrique Pereira [UNESP]
dc.contributor.authorSilva, Rafael Innocenti Vieira da [UNESP]
dc.contributor.authorVelini, Edivaldo Domingues [UNESP]
dc.contributor.authorSaeki, Margarida Juri [UNESP]
dc.contributor.authorPedrosa, Valber de Albuquerque [UNESP]
dc.contributor.authorCastro, Gustavo Rocha de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal da Grande Dourados (UFGD)
dc.date.accessioned2015-10-21T13:12:01Z
dc.date.available2015-10-21T13:12:01Z
dc.date.issued2015-08-01
dc.description.abstractThrough very simple and inexpensive processes, pata-de-vaca leaves were turned into a powder and applied as an adsorbent for the uptake of Cu(II) and Cd(II) from water. The material was characterized through SEM, EDX, FTIR and surface area measurement. The material had its point of zero charge determined (5.24), and its adsorption capacity was evaluated as a function of time, pH and metal concentration. The material presented fast adsorption kinetics, reaching adsorption equilibrium in less than 5 min and it had a good correlation with the pseudo-second order kinetic model. Optimum pH for the adsorption of Cu(II) and Cd(II) were found to be in the range from 4 to 5, approximately. In the experiment as a function of the analyte concentration, analogously to gas adsorption, the material presented a type II isotherm, indicating the formation of multilayers for both species. Such behavior was explained with basis in the alternation between cations and anions over the material's surface, and the maximum adsorption capacity, considering the formation of the multilayers were found to be 0.238 mmol L-1 for Cu(II) and 0.113 mmol L-1 for Cd(II).en
dc.description.affiliationUniversidade Federal da Grande Dourados, Faculdade de Ciências Exatas e Tecnologia
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Química e Bioquímica, Instituto de Biociências de Botucatu
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Produção e Melhoramento Vegetal, Faculdade de Ciências Agronômicas de Botucatu
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2013/22955-2
dc.description.sponsorshipIdFAPESP: 2012/21795-9
dc.description.sponsorshipIdCNPq: 120112/2013-2
dc.format.extent81-89
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0169433215007382
dc.identifier.citationApplied Surface Science. Amsterdam: Elsevier Science Bv, v. 345, p. 81-89, 2015.
dc.identifier.doi10.1016/j.apsusc.2015.03.142
dc.identifier.issn0169-4332
dc.identifier.lattes1802982806436894
dc.identifier.lattes7781282422851911
dc.identifier.lattes9855493448161702
dc.identifier.orcid0000-0003-0431-5942
dc.identifier.urihttp://hdl.handle.net/11449/128660
dc.identifier.wosWOS:000353803000011
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofApplied Surface Science
dc.relation.ispartofjcr4.439
dc.relation.ispartofsjr1,093
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAdsorptionen
dc.subjectSolid-phase extractionen
dc.subjectHeavy metalen
dc.subjectDecontaminationen
dc.subjectWastewater treatmenten
dc.subjectSeparation techniqueen
dc.titleMultilayer adsorption of Cu(II) and Cd(II) over Brazilian Orchid Tree (Pata-de-vaca) and its adsorptive propertiesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes1802982806436894
unesp.author.lattes7781282422851911
unesp.author.lattes9855493448161702[5]
unesp.author.orcid0000-0003-0431-5942[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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Coleções

Botucatu - FCA - Faculdade de Ciências Agronômicas