Kinetic studies of direct blue photodegradation over flower-like TiO2
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- 作者：Han Zhang ; Delei Liu ; Shan Ren ; Hui Zhang
- 关键词：Flower ; like TiO2 ; Photocatalytic ; Reaction kinetics
- 刊名：Research on Chemical Intermediates
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：43
- 期：3
- 页码：1529-1542
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Catalysis; Physical Chemistry; Inorganic Chemistry;
- 出版者：Springer Netherlands
- ISSN：1568-5675
- 卷排序：43
文摘
The kinetics of photocatalytic oxidation reaction for direct blue solution was studied by using flower-like TiO2 under the irradiation of ultraviolet (UV) light. A series of possible affecting factors were studied, including pH value, the additive amount of light catalyst, H2O2 and with or without Ag modification. The kinetics of photocatalytic degradation under UV was found following a pseudo-second-order reaction kinetic model with high regression coefficients (R2). It has been demonstrated that the initial concentration and its related factors have influenced the photocatalytic degradation efficiency and corresponding kinetic parameters. Also, the kinetic parameter k is increasing with the degradation efficiency.