Photocatalytic decomposition of azo-dye acid black 1 in water over modified titanium dioxide

被引:280
作者
Grzechulska, J [1 ]
Morawski, AW [1 ]
机构
[1] Tech Univ Szczecin, Inst Chem & Environm Engn, Dept Water Technol & Environm Engn, PL-70322 Szczecin, Poland
关键词
photocatalytic oxidation; modified titanium dioxide; azo-dye;
D O I
10.1016/S0926-3373(01)00275-2
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 an azo-dye acid black 1 (AB1) in water has been investigated over modified titanium dioxide (Tytanpol A11, "Police" Chemical Factory, Poland). The effect of operational parameters, i.e. pH of the solution, photocatalyst content, initial dye concentration on the photocatalytic process has been examined. It can be stated that the complete removal of color, after selection of optimal operational parameters, using modified Tytanpol A11 can be achieved in relatively short time, about 1 h. The catalytic material has been characterized by several analytical methods, like XRD, FTIR, UV-VIS/DRS. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:45 / 51
页数:7
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