Photocatalytic degradation of phenol in aqueous solution using TiO2/Ti thin film photocatalyst
来源期刊：中国有色金属学报(英文版)2003年第4期
论文作者：樊彩梅 孙彦平 闵延琴 郝晓刚 李新军 李芳柏
文章页码：1008 - 1012
Key words：phenol; TiO2/Ti film; photocatalysis
Abstract: In order to clarify the respective role of the UV light, catalyst, external bias as well as their combined effects on the photodegradation process and to clarify the photocatalytic mechanism under different experimental conditions, a series of experiments were conducted in a shallow pond photoreactor with an effective volume of 100mL using TiO2/Ti thin film prepared by anodization as photocatalyst. A 300W UV lamp(Emax=365nm)was used as side light source. The effect of light intensity on photocatalysis was also conducted. The results show that photocatalytic oxidation is an effective method for phenol removal from waters. The degradation rate can be improved by applying an anodic bias to the TiO2/Ti film electrode, phenol can not be decomposed under only 365nm UV light irradiation even in the presence of hydrogen peroxide. In the range of our research, the phenol removal rate can be described in terms of pseudo-first order kinetics.
