纳米TiO_2修饰对其光催化性能的改进作用研究进展

Research of modification in nano-titanium dioxide for improvement of their photocatalytic properties

综述了纳米TiO2的制备及其光催化机理;并且基于纳米TiO2光催化性能的广泛应用及其在应用时效率偏低的问题,从抑制TiO2内载流子的复合、提高催化剂的比表面积和改变催化剂的结构与表面性质三个方面综述了修饰纳米TiO2以提高其光催化性能的各项措施;最后对纳米TiO2在光催化领域中的发展方向做出了展望。

This paper introduced the preparation of nano-titanium dioxide and its photocatalytic mechanism.Based on the nano-titanium dioxide photocatalytic properties of the wide range of application and its low efficiency,the paper overviewed three aspects of modification and improvement of nano-titanium dioxide,including the suppression of carrier＇s compound in TiO2,the improvement of the catalyst surface area and the changing of the catalyst structure and surface properties,thereby enhancing its photocatalytic effect.Finally,the future development of nano-titanium dioxide in the field of photocatalysis was forecasted.