Photoeletrocatalytic oxidation of anionic surfactant used in leather industry on nanoporous Ti/TiO2 eletrodes

Autor(es)

Fabiana M. M. Paschoal ^[1] ; Marc A. Anderson ^[2] ; M. Valnice B. Zanoni ^[3]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica - Brasil

^[2] University of Wisconsin-Madison. Environmental Chemistry and Technology Program - Estados Unidos

^[3] Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Brazilian Chemical Society; v. 19, n. 4, p. 803-810, 2008-00-00.

Resumo

The photoeletrocatalytic oxidation of 0.009% (m/v) of commercial surfactant Tamol® in 0.1 mol L-1 Na2SO4 was investigated on thin-film of TiO2 as photoanode.Using the best experimental condition, E = + 1.0 V, pH 2.0 and UV irradiation were obtained 100% of surfactant removal followed by 94% of total organic carbon (TOC) removal after 90 min of photoelectrocatalytic treatment. The method was applied to surfactant removal in the presence of acid red 151 dye. After 90 min of treatment the method promoted 98% of discoloration concomitant to reduction of 81% total organic carbon of the resulting solution. (AU)

• Processo FAPESP: 04/07353-7 - Descoloracao e degradacao de corantes acidos usados em curtumes via oxidacao eletroquimica e fotoeletroquimica.
• Beneficiário: Fabiana Maria Monteiro Paschoal
• Modalidade de apoio: Bolsas no Brasil - Doutorado