半导体光催化剂的研究现状及展望

半导体光催化氧化技术是一种新型的现代化水处理技术,对多种有机物有明显的降解效果,具有广泛的前景.本文简要综述了半导体光催化剂的研究开发现状,并对存在的问题和未来的发展动向进行简要分析.列举了近几十年来关于光催化研究的部分成果,内容涉及到光催化作用机理、光催化剂类型、TiO2半导体光催化剂的改性、光催化剂的固定化等各方面.最后,指出了存在的问题及今后的研究趋势.

Prospect and Current Status in the Semiconductor Photocatalysts

The technique of photocatalystic oxidation, which uses a semiconductor as catalyst, is a new kind of water treatment process with great potential application in water treatment for its good ability to utilize natural resource, solar energy, and its outstanding effect on degradation of organic substances. The paper reviewed the recent applied research on the heterogeneous photocatalysts of semiconductors and some existing problems in the current research and the future trend of development were briefly analyzed. The main achievements in the investigation of photocatalysis during the recent decades were particularized, including the type, reaction mechanism of semiconductor photocatalyst, semiconductor photocatalysts modification, and photocatalysts immobilization. At last, the existing problems and further investigations were pointed out.