摘要
介绍了TiO2光催化降解水中污染物的作用机理,综述了实现TiO2可见光进行光催化降解水中污染物的方法,包括金属掺杂、非金属元素掺杂、半导体复合、表面光敏化等TiO2光催化剂的改性方法及光催化反应器的研制等,指出TiO2光催化是一种可以充分利用太阳能,具有很大发展潜力的水处理方法。
The mechanism of photocatalytic degradation of contaminants in water with titanium dioxide is described. The methods to realize titania visible light photocatalytic degradation of contaminants in water are reviewed, which include modification technology of titania photocatalyst and development of photocatalytic reactors, such as metal ion doping, nonmetal element doping, semiconductor coupling, surface photosensitization, and so on. It is suggested that photocatalytie oxidation is a promising and economical water treatment method for its ability of full use of solar energy.
出处
《环境科技》
2008年第6期49-52,共4页
Environmental Science and Technology
基金
国家自然科学基金资助项目(20477031)
江西省自然科学基金资助项目(550002).
关键词
二氧化钛
可见光
掺杂
光催化反应器
Titania
Visible light
Doping
Photocatalytic reactors
