TiO2可见光催化研究进展及其应用前景

综述了最近二氧化钛可见光催化改性的研究进展,并展望了二氧化钛光催化剂的应用前景。二氧化钛可见光催化剂改性方法包括:金属离子掺杂、非金属离子掺杂、半导体复合、表面光敏化及共掺杂等主要方法。其中运用最广泛的方法是共掺杂,因为共掺杂能集合其他改性方法的优点,可以同时在降低禁带宽度、提高吸光能力与降低电子与空穴复合等方面提高二氧化钛的性能。同时总结了其最近在环境污染物降解、有机物还原、太阳能电池等多方面的实验研究,展示其在多个领域的应用潜力。最后展望了未来二氧化钛可见光催化剂的发展方向及其应用前景。

Research progress and applied prospect of TiO2 visible light photocatalysis

This paper reviewed the progress in the modification of photacatalysis under visible light of titanium dioxide, and prospected the applied prospect of titanium dioxide.The modification methods of titanium dioxide photacatalyst under visible light includes: metal ions doped, non-metallic ions doped, semiconductors compound, surface sensitization of light and co-doped.Among this the most widely used method is co-doped, because it set the advantages of other methods, to improve the performance of titanium dioxide in reducing the band gap, improving the light-absorbing capacity, reducing the electron and hole recombination and other aspects.Meanwhile summarizes its recent experimental study on the degradation of pollutants in the environment, reduction of organic matter, solar cells and so on, showing its potential applications in many fields.Finally, this paper prospected the future direction and applied prospect of titanium dioxide catalyst under visible light.