Photocatalytic degradation kinetics of Rhodamine B catalyzed by nanosized TiO2 film

被引：8
|
作者：
Wei, G [1 ]
Zhang, YJ [1 ]
Xiong, RC [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2003年 / 48卷 / 01期
关键词：
photocatalysis; fixed bed photocatalytic reactor; kinetics; Rhodamine B;
D O I：
10.1360/03tb9010
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A fixed bed photocatalytic reactor as designed. and dynamic fast scan of UV-Vis adsorption spectrum was adopted to study the photocatalytic degradation dynamic behavior of Rhodamine B, a kind of dye generally recognized as to be degraded difficultly, on the surface of nanosized TiO2 thin film. The results indicate that the photocatahtic degradation process of Rhodamine B does not comply with the first-order reaction kinetic process. As a result, a kinetic model of Rhodamine B photocatalytic degradation reaction is brought forward, and the model is proved by the theoretical deduction and experiment.
引用
收藏
页码：49 / 52
页数：4
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