摘要
TiO2光催化是一种可以利用太阳光的高级氧化技术,在水处理方面具有广阔的应用前景,但该技术目前大都吸收紫外光,对可见光利用效率很低,急需研究可提高TiO2光催化性能的改性方案。本文综述了近年来TiO2金属掺杂、非金属掺杂以及共掺杂改性的理论与技术研究进展,对各种改性后的TiO2光催化效率及其对可见光的响应进行了综合分析与比较,并提出了展望。
The titanium dioxide （ TiO2 ） photocatalysis technique, a new and advance oxidation method, has been applied for waste water treatment because of direct utilization of solar energy. But it can only utilize part of solar energy by absorbing UV light which results in lower Utilization efficiency of solar energy. Many efforts on improvement of TiO2 photocatalysis properties have been carried out. In this paper new progresses about TiO2 photocatalysis mechanics and technology about metal doping, nonmetal doping and co-doping are reviewed. And the ratio of TiO2 photocatalysis and photocatalytic efficiency to visible light by doped TiO2 was analyzed and compared. Finally, the development tendency in this field was proposed.
出处
《生物质化学工程》
CAS
2011年第4期32-38,共7页
Biomass Chemical Engineering
基金
山东省博士后创新项目(200802011)
关键词
TIO2
光催化
掺杂
改性
TiO2
photocatalysis
doping
modification
