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

[1] Photodegradation of commercial dye, CI Reactive Blue 160 using ZnO nanopowder: Degradation pathway and identification of intermediates by GC/MS [J].

Bansal, Priti ;

Sud, Dhiraj .

SEPARATION AND PURIFICATION TECHNOLOGY, 2012, 85 :112-119

[2] Photocatalytic degradation of azo dye in aqueous TiO2 suspension: Reaction pathway and identification of intermediates products by LC/MS [J].

Bansal, Priti ;

Singh, Damanjit ;

Sud, Dhiraj .

SEPARATION AND PURIFICATION TECHNOLOGY, 2010, 72 (03) :357-365

[3] Identification of photooxidation degradation products of CI Reactive Orange 16 dye by gas chromatography-mass spectrometry [J].

Bilgi, S ;

Demir, C .

DYES AND PIGMENTS, 2005, 66 (01) :69-76

[4] Degradation pathways of ethyl violet by photocatalytic reaction with ZnO dispersions [J].

Chen, Chiing-Chang .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2007, 264 (1-2) :82-92

[5] Photocatalytic degradation of azo dye acid red 14 in water: investigation of the effect of operational parameters [J].

Daneshvar, N ;

Salari, D ;

Khataee, AR .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 157 (01) :111-116

[6]

Fijishima A., 2000, J PHOTOCH PHOTOBIO C, V1, P1

[7] Removal of synthetic dyes from wastewaters:: a review [J].

Forgacs, E ;

Cserháti, T ;

Oros, G .

ENVIRONMENT INTERNATIONAL, 2004, 30 (07) :953-971

[8] Photochemical treatment of solutions of azo dyes containing TiO2 [J].

Gonçalves, MST ;

Oliveira-Campos, AMF ;

Pinto, EMMS ;

Plasencia, PMS ;

Queiroz, MJRP .

CHEMOSPHERE, 1999, 39 (05) :781-786

[9] Influence of chemical structure of dyes, of pH and of inorganic salts on their photocatalytic degradation by TiO2 comparison of the efficiency of powder and supported TiO2 [J].

Guillard, C ;

Lachheb, H ;

Houas, A ;

Ksibi, M ;

Elaloui, E ;

Herrmann, JM .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 158 (01) :27-36

[10] Decolourization of textile industry wastewater by the photocatalytic degradation process [J].

Hachem, C ;

Bocquillon, F ;

Zahraa, O ;

Bouchy, M .

DYES AND PIGMENTS, 2001, 49 (02) :117-125

← 1 2 3 4 →