【摘要】 TiO2因其特有的物理化学性质,在环境污染治理方面有着广泛的应用前景。本文简要概述了TiO2的光催化反应机理,重点讨论了TiO2光催化掺杂改性技术,主要包括金属离子掺杂、贵金属沉积、半导体复合等方法。针对这三种方法分析了改性机理,列举了国内外研究现状,提出了TiO2掺杂改性的重要性。同时,对TiO2光催化技术目前存在的问题和未来研究方向做了简要的总结和预测。更多还原

【Abstract】 TiO2 has a great potential application prospect in environmental pollution management,due to its unique physical and chemical properties.In this paper,the photocatalytic mechanism of TiO2 is reviewed.The doped modification technology of TiO2 photocatalysis are dicussed,including metal irons doping,deposition of noble metals,semiconductor coupling and so on.In addition,the modificative mechanism of three mothods are analyzed,the domestic and foreign research evolution are cited,which indicate that the doped modification of TiO2 photocatalyst is very important.At the same time,the existing problems and prospects of TiO2 photocatalysis technology are addressed.更多还原