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Type: Artigo de periódico
Title: Methylene Blue Immobilized In Cellulose/tio 2 And Sio 2/tio 2: Electrochemical Properties And Factorial Design [azul De Metileno Imobilizado Na Celulose/tio 2 E Sio 2/tio 2: Propriedades Eletroquímicas E Planejamento Fatorial]
Author: Scotti R.
Lima E.C.
Benvenutti E.V.
Piatnicki C.M.S.
Dias S.L.P.
Gushikem Y.
Kubota L.T.
Abstract: The electrochemical properties of methylene blue immobilized on cellulose/TiO 2 and mixed oxide SiO 2/TiO 2 matrices were investigated by means of cyclic voltammetry. The electron mediator property of the methylene blue was optimized using a factorial design, consisting of four factors in two levels. The experimental observations and data analyses on the system indicate that the lowest peak separation occurs for Sil/TiOAM, 1.0 mol L -1 KCl solution and 20 mV s -1 scan rate, while values of current ratio closest to unity were found for Cel/TiOAM independent of electrolyte concentration. 0.2 or 1.0 mol L -1, and scan rate, 20 mV s -1 or 60 mV s -1.
Citation: Quimica Nova. , v. 29, n. 2, p. 208 - 212, 2006.
Rights: aberto
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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