Abstract: Graphitic carbon nitride (g⁃C3N4) possesses a unique two⁃dimensional structure, which is used as a kind of excellent non⁃metallic semiconductor photocatalysts, owing to its visible light absorption, adjustable energy band grade, high stability, and so on. This review focus on recent research results and progress, and modification and catalytic mechanism related to photocatalysts are summarized based on microstructure changing, elemental doping, semiconductor loading, and multiphase composite of g⁃C3N4. Finally, the review presents the viewpoint for the development of g⁃C3N4⁃based photocatalytic performance.

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摘要： 石墨相氮化碳（g⁃C3N4）是具有二维层状结构的材料，作为非金属半导体光催化剂有可见光吸收、能带等级可调变、化学稳定性高、绿色环保无污染等诸多优点。结合近几年国内外g⁃C3N4研究人员取得的最新成果及研究进展，从掺杂物质结构的角度综述了分子结构改变、单质掺杂、半导体负载及三元复合等g⁃C3N4的多种改性方法及催化机理，并对未来如何提升g⁃C3N4的光催化性能进行展望。

关键词: 催化剂, 石墨相氮化碳, 复合材料, 降解