The progresses in research on photocatalytic performance of TiO2 modified by nitrogen-doping as well as the improvement of efficiency of the photocatalyst in the visible light region are reviewed.

• 摘要综述了近年来国内外利用氮掺杂改性二氧化钛的光催化剂性能、提高可见光的利用效率的最新研究进展；