综述了利用金属、非金属、稀土元素掺杂TiO₂的研究现状，探究掺杂的实验过程，优化制备工艺，测试光催化的稳定性，促进光催化效率提高。

Titanium dioxide can be applied in the field of photocatalysis.One dimensional TiO₂ nanotubes show excellent performance in photocatalysis with highly ordered array structure and high specific surface area.However,its structure limits its catalytic capacity.Doping elements in TiO₂ nanotubes can narrow band width and expand the absorption range of visible light,which has a broad application prospect.The research status of doping TiO₂ nanotubes with metals,non-metals and rare earth elements is summarized,the experimental process of doping is explored,the preparation process is optimized,the stability of photocatalysis is tested and the efficiency of photocatalysis is improved.

孙文(1994-),男,硕士生