Investigation about the copper adsorption on the chloropropylsilica gel surface modified with a nanostructured dendrimer DAB-Am-16: an analytical application for determination of copper in different samples

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dc.contributor.authorCarmo, Devaney Ribeiro do [UNESP]
dc.contributor.authorPaim, Leonardo Lataro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:55Z
dc.date.available2014-05-20T13:29:55Z
dc.date.issued2013-02-01
dc.description.abstractThe third generation (G-3) poly(propyleneimine)hexadecaamine dendrimer (DAB-Am-16) was grafted onto the chloropropylsilica gel surface (DPPIPS). The modified silica (DPPIPS) was characterized by Electronic (Uv-Vis), vibrational and Electron Paramagnetic Resonance (EPR), spectrocopies, surface area (331.07 m².g-1) and porosity analyses (pore diameter of 41.9 nm) and cyclic voltammetry technique. The copper adsorption studies were performed using a batchwise process and the DPPIPS showed adsorption capacities of 16.3, 47.8 and 659.5 mol.g-1 in aqueous, ethanol and acetone medium, respectively, with recoveries close to 100% after percolation with HCl 1.0 mol.L-1. The results suggest that the sorption of copper ions on DPPIPS occurs mainly by surface complexation and a Langmuir model allowed describing the sorption of the metal ions on DPPIPS. As an application of this chemically modified material, copper was determined in real samples of distilled spirits and fuel alcohol.en
dc.description.affiliationUniversidade Estadual Paulista - UNESP Faculdade de Engenharia de Ilha Solteira Departamento de Física e Química
dc.description.affiliationUniversidade Estadual Paulista - UNESP Instituto de Química de Araraquara
dc.description.affiliationUnespUniversidade Estadual Paulista - UNESP Faculdade de Engenharia de Ilha Solteira Departamento de Física e Química
dc.description.affiliationUnespUniversidade Estadual Paulista - UNESP Instituto de Química de Araraquara
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent164-172
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392012005000163
dc.identifier.citationMaterials Research. ABM, ABC, ABPol, v. 16, n. 1, p. 164-172, 2013.
dc.identifier.doi10.1590/S1516-14392012005000163
dc.identifier.fileS1516-14392013000100021.pdf
dc.identifier.issn1516-1439
dc.identifier.lattes0545046720519536
dc.identifier.lattes4328309612941987
dc.identifier.scieloS1516-14392013000100021
dc.identifier.urihttp://hdl.handle.net/11449/10144
dc.identifier.wosWOS:000314791100021
dc.language.isoeng
dc.publisherABM, ABC, ABPol
dc.relation.ispartofMaterials Research
dc.relation.ispartofjcr1.103
dc.relation.ispartofsjr0,398
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectadsorptionen
dc.subjectdendrimeren
dc.subjectsilicaen
dc.subjectspectroscopyen
dc.subjectchemical synthesisen
dc.titleInvestigation about the copper adsorption on the chloropropylsilica gel surface modified with a nanostructured dendrimer DAB-Am-16: an analytical application for determination of copper in different samplesen
dc.typeArtigo
unesp.author.lattes0545046720519536
unesp.author.lattes4328309612941987[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS