Photoelectrocatalytic degradation of recalcitrant organic pollutants using TiO₂ film electrodes: An overview

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• 作者：Yanzong Zhang ; ^{zh.plasma@yahoo.com.cn} ; Xiaoyan Xiong ; Yue Han ; Xiaohong Zhang ; Fei Shen ; Shihuai Deng ; Hong Xiao ; Xinyao Yang ; Gang Yang ; Hong Peng
• 关键词：Anodic oxidation ; Atomic layer deposition ; TiO2 nanotube array electrodes ; Doping ; Potential bias ; Kinetic model
• 刊名：Chemosphere
• 出版年：2012
• 期刊代码：15_00456535
• 类别：env
• 出版时间：June, 2012
• 卷：88
• 期：2
• 页码：145-154
• 文件大小：325 K

摘要

Photoelectrocatalytic (PEC) technology involved applying an electrical bias to a TiO₂ film electrode, has been widely applied to the degradation of refractory organic pollutants, owing to its high degradation efficiency. This paper reviews recent developments in the PEC degradation of recalcitrant organic contaminants using a TiO₂ film electrode. The preparation and application of various TiO₂ film electrodes have been investigated, as well as the parameters that influence PEC activity such as the crystal structure, the film thickness and substrate material, the applied electrical bias, the solution pH and conductivity. The improvement of PEC activity by doping the TiO₂ film electrode with metal and non-metal ions has been discussed. The mechanism and kinetics for the PEC degradation of organic pollutants have also been highlighted.