TiO_2光电催化水处理技术研究进展  

Progress in Research on Wastewater Treatment by TiO_2 Photoelectrocatalytic Technology

作　　者：郝晓刚[1] 李一兵[1] 樊彩梅[1] 孙彦平[1] 

机构地区：[1]太原理工大学洁净化工研究所,太原030024

出　　处：《化学通报》2003年第5期306-311,共6页Chemistry

基　　金：国家自然科学基金资助项目 (2 0 0 0 6 0 11)

摘　　要：TiO2 光电催化水处理是一种电化学辅助的光催化反应技术 ,通过施加外部偏压减少光生电子和空穴的复合 ,从而提高其量子效率使有机污染物彻底矿化。本文综述了TiO2 光电催化的机理、研究进展 ,反应器开发、设计。TiO 2 photoelectrocatalysis is a kind of photocatalytic oxidation technologies assisted with electrochemical method. Photogenerated electrons can be removed from TiO 2 electrodes before they could recombine with the holes by the application of a suitable external bias potential, so the quantum efficiencies can be improved and the organic pollutants mineralized completely. The principle and mechanism of photoelectrocatalysis on TiO 2, the recent research progress and the key problems for the scale up, design and modeling of this kind of reactors were reviewed, and some research topics in this respect and methodology were also recommended.

关 键 词：TIO2 二氧化钛 光电催化 水处理技术 废水处理 有机污染物 降解 光催化剂 

分 类 号：X703[环境科学与工程—环境工程]