近年来，石墨相氮化碳(g-C3N4)以其合适的带隙宽度、丰富的活性位点和成本低廉等优点，成为新兴的可见光响应非金属光催化剂，被广泛应用于光催化降解有机污染物领域。然而，纯g-C3N4对可见光的吸收效率较低且光生电子和空穴复合速率快，导致其光催化活性处于较低水平。基于g-C3N4的非金属特性，通过非金属掺杂可以有效提高g-C3N4的光催化性能，引起了学者们的广泛关注。本文介绍了目前非金属掺杂g-C3N4复合材料常见的制备方法,着重归纳了不同类型的非金属掺杂g-C3N4光催化降解水中有机污染物的相关研究进展，探讨其作为光催化剂在可见光条件下降解有机污染物的相关机理。最后，提出目前g-C3N4基复合材料在光催化降解水中有机污染物中所面临的挑战，旨在为非金属掺杂g-C3N4耦合光催化在水中有机污染物降解方面提供参考。

In recent years, as a new visible light responsive nonmetal photocatalyst, graphite-phase carbon nitride (g-C3N4) has been widely used for organic pollutants removal in photocatalysis system due to its suitable band gap width characteristic, enough active sites and low cost. However, the drawback of its low visible-light utilization and fast recombination of photogenerated electron-hole pairs that play negative effect on its photocatalytic activity. Combine with the nonmetal properties of g-C3N4, nonmetal doping is an effective strategy to further improve the photocatalytic performance of g-C3N4, and has attracted more and more attention on photocatalysis. In this paper, the common preparation methods of non metal doped g-C3N4 composite materials are introduced. In addition, the research progress of different nonmetal doped g-C3N4 applied in photocatalytic degradation of organic pollutants is summarized in detail, and its mechanism of photocatalytic degradation of organic pollutants under visible light is also discussed. Finally, the challenges and suggestions for the photocatalytic degradation of organic pollutants in water by nonmetal doped g-C3N4 are proposed, and this review also helps to provide insights into the removal of organic pollutants by nonmetal doped g-C3N4 coupled photocatalysis.