Desenvolvimento e avaliação de eletrodos de difusão gasosa (EDG) para geração de H2O2 in situ e sua aplicação na degradação do corante reativo azul 19

Química Nova

Robson S. Rocha²  Rafael M. Reis²  André A. G. F. Beati²  Marcos R. V. Lanza²  Maria Del Pilar T. Sotomayor¹  Rodnei Bertazzoli¹ 

[1] ,Universidade de São Paulo Instituto de Química de São Carlos Departamento de Química e Física MoleculaSão Carlos SP ,Brasil

关键词: gas diffusion electrode;    hydrogen peroxide;    Reactive Blue 19 dye;   

DOI  :  10.1590/S0100-40422012001000014

来源: SciELO

【 摘 要 】

This work reports the development of GDE for electrogeneration of H2O2 and their application in the degradation process of Reactive Blue 19 dye. GDE produced by carbon black with 20% polytetrafluoroethylene generated up to 500 mg L-1 of H2O2 through the electrolysis of acidic medium at -0.8 V vs Ag/AgCl. Reactive Blue 19 dye was degraded most efficiently with H2O2 electrogenerated in the presence of Fe(II) ions, leading to removal of 95% of the original color and 39% of TOC at -0.8 V vs Ag/AgCl.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License