利用贵金属改性TiO2光催化剂是提高TiO2光催化活性的主要方法之一,在离子掺杂改性TiO2研究中受到重点关注.综述了贵金属改性TiO2光催化剂的机理,总结了贵金属改性TiO2光催化剂的主要制备方法,分析了目前贵金属改性TiO2光催化剂研究中存在的问题,指出通过某些贵金属掺杂TiO2光催化剂能克服贵金属表面沉积改性方法的不足,并能有效改善TiO2光催化剂的光催化性能.%Utilized noble metal to modify TiOz photocatalyst is a main method and it attracts more attentioa In this paper, the mechanism on TiO2 photocatalyst modified with noble metal is summarized. The main preparation methods are summarized and the present problems are analyzed. The deficiencies of depositing noble metal can be o-vercome and the photocatalytic activity can be improved effectively by doping some noble metal.
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