Mutagenic activity removal of selected disperse dye by photoeletrocatalytic treatment

被引：18

作者：

Carneiro, Patricia A. ^{[1
]}

Oliveira, Danielle P. ^{[2
]}

Umbuzeiro, Gisela A. ^{[2
]}

Boldrin Zanoni, Maria Valnice ^{[1
]}

机构：

[1] UNESP, Inst Quim, Dept Quim Analit, BR-14800901 Araraquara, SP, Brazil

[2] Univ Sao Paulo, Fac Ciencias Farmaceut, BR-05508900 Sao Paulo, Brazil

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2010年 / 40卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Mutagenic activity; Disperse dyes; Photoelectrocatalytic oxidation; Chlorination of azo dyes; RIVER WATER; AZO-DYES; 2-PHENYLBENZOTRIAZOLE DERIVATIVES; IDENTIFICATION; DEGRADATION; CHLORINATION; OXIDATION; EFFLUENT; PBTA-1; AICHI;

D O I：

10.1007/s10800-009-0018-9

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The degradation of black dye commercial product (BDCP) composed of C.I. Disperse Blue 373, C.I. Disperse Orange 37, C.I. Disperse Violet 93 dyes was investigated by photoelectrocatalysis process. The dyes have shown high mutagenic activity with Salmonella strain YG1041 and TA98 with and without S9. Samples of BCPD dye submitted to conventional chlorination and photoelectrocatalytic oxidation were compared monitoring its products by HPLC using a diode array detector, spectrophotometry UV-vis, TOC removal, and mutagenicity potency. The photoelectrocatalytic method operating with Ti/TiO2 as anode at +1.0 V and UV illumination presented fast oxidation of test solutions containing 10 mg L-1 of dye in 0.1 mol L-1 NaCl pH 4.0 leading to 100% of discoloration, 67% of mineralization, and negative response to all tested Salmonella strains. The formation of Cl-aEuro cent, CL2 (aEuro cent) on photoelectrocatalytic medium improved the efficiency of the method in relation to conventional chlorination method that promoted 100% of discoloration, but only 8% of TOC removal and more mutagenic product.

引用

页码：485 / 492

页数：8

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