二氧化钛半导体光催化技术研究进展

半导体光催化氧化技术是一种新型的现代水处理技术；由于它能广泛地利用天然能源－－太阳能，且对多种有机物有明显的降解效果，具有广阔的应用前景，近年来，半导体光催化已成为光化学领域及环境保护领域中的研究热点之一，介绍了近年来国内外二氧化钛（TiO2）半导体光催化技术的研究进展，主要涉及TiO2光催化氧化机理、高活性TiO2光催化剂的制备与改性、TiO2担载及该技术在环境保护中的应用等方面的研究。

Titanium dioxide photacatalystic technique at home and abroad

The technique of photocatalytic oxidation which utilizes 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. It has now become one of the popular research subjects in the field of photochemistry and environment protection. The recent progress made on titanium dioxide (TiO 2) photocatalytic technique both at home and abroad is introduced, including the mechanism of photocatalysis oxidation, preparation and modification of TiO 2 with high catalytic activity, coating of TiO 2 and its application for environment protection.