Photocatalytic mineralisation of mercaptans as environmental pollutants in aquatic system using TiO2 suspension

被引：86

作者：

Habibi, MH ^{[1
]}

Tangestaninejad, S ^{[1
]}

Yadollahi, B ^{[1
]}

机构：

[1] Isfahan Univ, Dept Chem, Esfahan 81745, Iran

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2001年 / 33卷 / 01期

关键词：

environmental pollutants; mercaptans; mineralisation; 2-mercaptobenzothiazole (MBT); 2-mercaptobenzimidazole (MBI); 2-mercaptobenzoxazole (MBO); 2-mercaptopyridine (MP); para-tolylmercaptan (PTM); TiO2; photocatalyst; odour control;

D O I：

10.1016/S0926-3373(01)00158-8

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 photocatalytic oxidation of aqueous solutions of 2-mercaptobenzothiazole (MBT), 2-mercaptobenzinlidazole (MBI), 2-mercaptobenzoxazole (MBO), 2-mercaptopyridine (MP), para-tolylmercaptan (PTM) was investigated over a heterogeneous catalyst of TiO2, in a photocatalytic reactor. The effect of some physical and chemical parameters such as amount of catalyst, flow of oxygen, pH and time of irradiation were studied in order to optimise the process. These mercaptans are almost completely mineralised to carbon dioxide, ammonia and sulphate ion by photocatalytic method. The results obtained from photocatalytic oxidation of MBT have led us to propose a compound with the sum formula of benzothiazol-2-sulfonate (BTSO3) to be a main intermediate. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：57 / 63

页数：7

相关论文

共 41 条

[1] ANALYSIS AND FATE OF DIBENZOTHIOPHENE DERIVATIVES IN THE MARINE-ENVIRONMENT [J].

BERTHOU, F ;

VIGNIER, V .

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1986, 27 (1-2) :81-96

[2]

Bitton G, 1994, WASTEWATER MICROBIOL, P258

[3]

BUJDAKOVA H, 1993, FEMS MICROBIOL LETT, V112, P329, DOI 10.1111/j.1574-6968.1993.tb06471.x

[4] Analysis of copper corrosion inhibitors by capillary zone electrophoresis [J].

Chen, CC ;

Lin, CE .

ANALYTICA CHIMICA ACTA, 1996, 321 (2-3) :215-218

[5] PHOTOLYSIS OF TRIADIMENOL [J].

CLARK, T ;

WATKINS, DAM .

CHEMOSPHERE, 1986, 15 (06) :765-770

[6] PHOTOCATALYTIC DECOLORIZATION OF WASTE-WATER DYES [J].

DAVIS, RJ ;

GAINER, JL ;

ONEAL, G ;

WU, IW .

WATER ENVIRONMENT RESEARCH, 1994, 66 (01) :50-53

[7]

De Wever H, 1998, APPL ENVIRON MICROB, V64, P3270

[8] TOXICITY OF 2-MERCAPTOBENZOTHIAZOLE TOWARDS BACTERIAL-GROWTH AND RESPIRATION [J].

DEWEVER, H ;

DEMOOR, K ;

VERACHTERT, H .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1994, 42 (04) :631-635

[9] 2-MERCAPTOBENZOTHIAZOLE DEGRADATION IN LABORATORY FED-BATCH SYSTEMS [J].

DEWEVER, H ;

VERACHTERT, H .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1994, 42 (04) :623-630

[10] Inhibitory effects of 2-mercaptobenzothiazole on microbial growth in a variety of trophic conditions [J].

DeWever, H ;

VandenNeste, S ;

Verachtert, H .

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 1997, 16 (05) :843-848

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