增强TiO2光催化性能方法的研究综述

Research Overview on Methods for Enhancing Photocatalytic Performance of TiO2

二氧化钛(TiO2)光催化剂,作为一种可以有效光催化降解水和空气污染物以及具有表面自清洁能力的绿色环保材料而广受关注。TiO2对太阳光的利用率较低,而且其光催化活性也需要进一步得到提升。目前,较为常见的改善TiO2的光催化性能和光催化活性的方法有离子掺杂、贵金属负载、染料敏化和不同光催化剂的复合等,研究将综述各种改善光催化性能的方法及改性原因,以及对光催化性能的机理进行探讨。

Titanium dioxide(TiO2)photocatalyst,as an effective photocatalytic degradation of water and air pollutants and green environmental protection materials with surface self-cleaning ability,has attracted much attention.TiO2 has a low utilization rate of solar light,and its photocatalytic activity needs to be further improved.At present,the common methods to improve the photocatalytic performance and photocatalytic activity of TiO2 are ion doping,precious metal loading,dye sensitization and the combination of different photocatalysts.The methods and modification reasons for improving photocatalytic performance are reviewed,and the mechanism of photocatalytic performance is discussed.