Photocatalytic degradation of commercial dye, CI Reactive Red 35 in aqueous suspension: Degradation pathway and identification of intermediates by LC/MS

被引：29

作者：

Bansal, Priti ^{[1
]}

Sud, Dhiraj ^{[1
]}

机构：

[1] St Longowal Inst Engn & Technol Deemed Univ, Dept Chem, Longowal 148106, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2013年 / 374卷

关键词：

Reactive dye; Photocatalysis; CI Reactive Red 35; Azo dye; LC/MS; AZO-DYE; MASS-SPECTROMETRY; TEXTILE EFFLUENTS; TIO2; SUSPENSIONS; WASTE-WATER; PRODUCTS; BLUE; ZNO; PHOTODEGRADATION; OPTIMIZATION;

D O I：

10.1016/j.molcata.2013.03.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photodegradation of Reactive Red 35 dye by artificial UV light was investigated in the presence of titania P-25. Six reaction intermediates were identified and separated by LC/MS, giving insight into mechanistic details and degradation pathways. The degradation process takes place through competitive reactions such as removal of chromophoric group, hydroxylation of the aromatic ring, substitution on aromatic ring, devinylsulphonation, C-N bond cleavage, decarboxylation and further ring opening to give aliphatic compounds. The probable degradation pathways were proposed and discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：66 / 72

页数：7

共 36 条

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