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dc.contributor.authorTramontina, Jucelâniapt_BR
dc.contributor.authorMachado, Giovannapt_BR
dc.contributor.authorAzambuja, Denise Schermannpt_BR
dc.contributor.authorPiatnicki, Clarisse Maria Sartoript_BR
dc.contributor.authorSamios, Dimitriospt_BR
dc.date.accessioned2010-04-16T09:09:55Zpt_BR
dc.date.issued2001pt_BR
dc.identifier.issn1516-1439pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/19410pt_BR
dc.description.abstractThe development of simple methods for removal of heavy metals from aqueous samples is a relevant field of research. In this connection, the electrodeposition of the Cd+2 ion, one of the most toxic species for animals and human beings, was investigated in aerated pH 4.8 sulfuric-sulfate solutions. In potentiostatic conditions, the maximum rate of cadmium deposition at a neutral polypyrrole (PPy0) coated reticulated vitreous carbon (RVC) working electrode occurs at -3.0 Vvs. the saturated calomel reference electrode (SCE).Moreover, the conversion rate depends both on the applied potential and on themass transport regime, and, for solutions containing 10mg L-1 of Cd2+, the highest removal efficiency achieved is 84%after 90 min of electrolysis. The concentration decay of the Cd+2 ion in the solution was monitored by anodic stripping voltammetry (ASV) at a hanging mercury drop electrode. Besides, metallic cadmium deposited onto the polypyrrole modified RVC electrode was evidenced by Scanning ElectronMicroscopy (SEM) analysis using the backscattered electron image (BEI) technique and by Energy Dispersive Spectrometry (EDS).en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 4, n. 3 (2001), p. 195-200pt_BR
dc.rightsOpen Accessen
dc.subjectMetais : Remoçãopt_BR
dc.subjectCadmiumen
dc.subjectRVCen
dc.subjectCádmiopt_BR
dc.subjectPolypyrroleen
dc.subjectDeposição eletroquímicapt_BR
dc.subjectPolipirrolpt_BR
dc.subjectMicroscopyen
dc.subjectCarbono vítreo reticuladopt_BR
dc.titleRemoval of Cd+2 from aqueous solutions onto polypyrrole coated reticulated vitreous carbon eletrodespt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000300810pt_BR
dc.type.originNacionalpt_BR


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