纳米TiO_2可见光响应研究进展

Development of Nano-TiO_2 Modification in Visible Light

纳米TiO_2因具有良好的光催化性能而受到关注,针对TiO_2实际使用过程中存在的问题——可见光利用效率低下,研究者开展了深入而广泛的研究。着重综述了近年来发展起来的主要改性方法,包括金属离子掺杂、非金属原子置换、两种(或以上)半导体复配、有机染料敏化等,以及最新研究成果。同时对TiO_2可见光研究发展方向进行了分析。

Nano-TiO2 has attracted much attention due to its good photocatalysis properties, but its low efficiency in the response to visible light prevents its wide use. To solve this problem, many modification methods have been developed, such as metal ion doping, nonmetal ion replacement, two （or more） semiconductor composite and organic dye sensation, which are reviewed in this paper. Some comments are made with respect to studies on visible light modification.