TiO_2纳米材料的水热法制备及其在污水光催化降解中的应用

Preparation of TiO2 Nano-materials and Photocatalytic Purification of Sewage

该文综述了近年来有关以TiO2在光照射下对有机污染物进行光催化降解作用的研究进展,讨论水热法的特点及其制备TiO2的过程,阐述了TiO2在紫外光和可见光下的光催化机制,着重介绍了TiO2纳米材料在光催化降解处理污水的应用情况,指出了TiO2研究进程中存在的主要问题、发展前景及今后的研究方向。

The recent research progress of photo-catalyzed degradation of organic pollutants by TiO2 is reviewed,the characteristics of hydrothermal method and the prepared processes of TiO2 were discussed,the photo-catalyzed mechanism under UV and visible light and the application of degradation of sewage using TiO2 nanomaterials from five aspects were described in this paper. The main problems existing in the studies of TiO2,the research directions,and the development prospects were also discussed.