Photocatalytic degradation of the textile dye Reactive Orange 16 in the presence of TiO2 suspensions

被引：139
|
作者：
Poulios, I [1 ]
Aetopoulou, I [1 ]
机构：
[1] Aristotle Univ Thessaloniki, Dept Chem, Chem Phys Lab, GR-54006 Thessaloniki, Greece
来源：
ENVIRONMENTAL TECHNOLOGY | 1999年 / 20卷 / 05期
关键词：
photocatalysis; reactive orange 16; photooxidation; dyes; titanium dioxide; zinc oxide;
D O I：
10.1080/09593332008616843
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The photocatalytic degradation of Reactive Orange 16, a textile azo dye, has been investigated in aqueous heterogeneous solutions containing titanium dioxide TiO2 as photocatalyst. The disappearance of the organic molecule follows approximately a pseudo-first kinetic order according to the Langmuir-Hinshelwood model. CO2, NO3; NH4+ and SO42- ions have been identified as mineralization products. Various commercial photocatalysts were compared with respect to their decolorization efficiency, as well as the production of CO2. The effect of pH and H2O2 on the reaction rate was ascertained.
引用
收藏
页码：479 / 487
页数：9
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