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

Journal of the Brazilian Chemical Society

Fabiana M. M. Paschoal²  Marc A. Anderson¹  M. Valnice B. Zanoni² 

[1] ,Universidade Estadual Paulista Instituto de Química Departamento de Química AnalíticaAraraquara SP ,Brazil

关键词: surfactant oxidation;    photoelectrocatalysis;    photoelectrochemistry;    thin-film electrodes;    Ti/TiO2;   

DOI  :  10.1590/S0103-50532008000400027

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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