TiO2 mediated photocatalytic degradation studies of Reactive Red 198 by UV irradiation

被引：131

作者：

Kaur, Sumandeep

Singh, Vasundhara ^{[1
]}

机构：

[1] Punjabi Univ, Coll Engn, Patiala 147002, Punjab, India

[2] Thapar Inst Engn & Technol, Sch Chem & Biochem, Patiala 147004, Punjab, India

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 141卷 / 01期

关键词：

photocatalytic degradation; Reactive Red 198; UV irradiation; TiO2;

D O I：

10.1016/j.jhazmat.2006.06.123

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photocatalytic degradation of an aqueous solution of azo dye (Reactive Red 198) used in textile industries by UV irradiation was investigated. The effect of initial dye concentration, TiO2 loading, pH and H2O2 on degradation rate was ascertained and optimized conditions for maximum degradation were determined. The kinetics of photocatalytic degradation was found to follow a pseudo-first order according to Langmuir-Hinshelwood model. The degradation experiment under optimized reaction conditions was investigated under sunlight. (c) 2006 Elsevier B.V. All rights reserved.

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页码：230 / 236

页数：7

相关论文

共 20 条

[1] Advanced oxidation of a reactive dyebath effluent:: comparison of O3, H2O2/UV-C and TiO2/UV-A processes [J].

Alaton, IA ;

Balcioglu, IA ;

Bahnemann, DW .

WATER RESEARCH, 2002, 36 (05) :1143-1154

[2] Photodegradation kinetics of 4-nitrophenol in TiO2 suspension [J].

Chen, DW ;

Ray, AK .

WATER RESEARCH, 1998, 32 (11) :3223-3234

[3] Photoassisted bleaching of dyes utilizing TiO2 and visible light [J].

Epling, GA ;

Lin, C .

CHEMOSPHERE, 2002, 46 (04) :561-570

[4] Photooxidation of the phenylazonaphthol AO20 on TIO2:: kinetic and mechanistic investigations [J].

Galindo, C ;

Jacques, P ;

Kalt, A .

CHEMOSPHERE, 2001, 45 (6-7) :997-1005

[5] 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

[6] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[7] The effect of operational parameters and TiO2-doping on the photocatalytic degradation of azo-dyes [J].

Kiriakidou, F ;

Kondarides, DI ;

Verykios, XE .

CATALYSIS TODAY, 1999, 54 (01) :119-130

[8] PHOTOMINERALIZATION OF 4-CHLOROPHENOL SENSITIZED BY TITANIUM-DIOXIDE - A STUDY OF THE INITIAL KINETICS OF CARBON-DIOXIDE PHOTOGENERATION [J].

MILLS, A ;

MORRIS, S .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1993, 71 (01) :75-83

[9] Photocatalytic degradation of waste water pollutants. Titanium dioxide-mediated oxidation of a textile dye, acid blue 40 [J].

Muneer, M ;

Philip, R ;

Das, S .

RESEARCH ON CHEMICAL INTERMEDIATES, 1997, 23 (03) :233-246

[10] Environmental photochemistry on semiconductor surfaces. Visible light induced degradation of a textile diazo dye, naphthol blue black, on TiO2 nanoparticles [J].

Nasr, C ;

Vinodgopal, K ;

Fisher, L ;

Hotchandani, S ;

Chattopadhyay, AK ;

Kamat, PV .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (20) :8436-8442