纳米TiO2的掺杂改性及应用进展研究

纳米级TiO2作为一种光催化材料，在环境保护、光能转换、医药行业、工业催化等领域有着极为广泛的用途。较低的光量子效率以及短波长高能量的激发源是限制TiO2使用范围的主要原因，其中掺杂改性是提高TiO2光量子效率的重要手段。本文综述了近几年来利用贵金属沉积与离子掺杂来改善二氧化钛光催化性方面所取得的进展及在相关领域的应用。

Modification of TiO2 Photocatalyst and Application

Nano-TiO2 is applied widely in many fields such as environment protection, conversion of light-energy, medical range,industrial catalyst.Low quantum yield,short-waves and high power was the main limitation of TiO2 photocatalysis technology into engineeringscale applications. New co-doped methods to modify TiO2 properties are generalized and finding application. Based on photocatalytic mechanism and activity,recent years,transition metals,rare earth elements are widely used to attempt to modify nano-TiO2 powders which can improve its performance effectively.