纳米TiO_2的研究与应用进展

针对近年来纳米TiO2研究的新成果,综述了纳米TiO2制备的研究进展;对影响纳米TiO2光催化降解的因素(如纳米TiO2的晶型与粒径、掺杂与改性及辅助光催化技术等)进行了讨论;对纳米TiO2在环境保护领域的主要应用进行了评述。指出纳米TiO2光催化技术尚未完全达到实际应用水平,还存在一些明显的不足,将纳米TiO2光催化技术和传统水处理技术相结合可能是一个很好的发展方向。

Research Progress in Preparation and Application of Nano-Titania

In recent years,study on preparation and application of nano-titania material has developed rapidly.Besides a brief survey of recent research advances on preparation of nano-titania,discussion of influencing factors on photocatalytic degradation,such as the crystal type and particle diameter,doping and modification,auxiliary photocatalytic technique used in degradation etc.were focused on.In addition,main applications of nano-titania in environmental protection field were also reviewed.Although technology of using nano-titania as photocatalyst has some obvious disadvantages and has not been fully applied in actual treatment process of environmental pollutants,but to combine photocatalytic activity of nano-titania with the traditional water treatment techniques maybe is a promising task to be worked on.