光催化材料石墨相氮化碳的合成、改性及应用

Synthesis, Modification and Application of Photocatalytic Material Graphite Phase Carbon Nitride

杨文科 卢连雪 李鹏 张健 胡绍争

Wenke YANG Lianxue LU Peng LI Jian ZHANG Shaozheng HU

辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001 辽阳石化公司研究院，辽宁 辽阳 111003

School of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，China Research Institute of Liaoyang Petrochemical Company，Liaoyang Liaoning 111003，China

石墨相氮化碳(g?C3N4)作为一种对环境温和的半导体材料，在光催化领域具有良好的应用前景。但是，纯g?C3N4因比表面积小、光生载流子分离难等缺点影响了其光催化性能，限制了其大规模应用，因此对g?C3N4进行改性使其光催化性能得到提升具有重要意义。从合成方法和改性策略出发，综述了近年来g?C3N4光催化剂的研究进展，并总结了g?C3N4光催化剂在废水处理降解污染物、产H2及产H2O2等领域的应用发展。结果表明，改性后的g?C3N4光催化剂性能得到了巨大的提升。最后，对g?C3N4的发展方向进行了展望。

Graphite phase carbon nitride(g?C3N4), as an environmentally benign semiconductor material, has good application prospects in photocatalysis. However, the disadvantages of pure g?C3N4 such as small specific surface area and difficult separation of photogenerated carriers will limit its photocatalytic performance, which will restrict its large?scale application.From the synthetic methods and modification strategies, the research progress of g?C3N4 photocatalysts by researchers in recent years is reviewed, and the development of g?C3N4 photocatalysts in the fields of degradation of pollutants in water treatment, H2 and H2O2 production is summarised, and it can be found that the performance of the modified g?C3N4 photocatalysts has been greatly improved.Finally,the development direction of g?C3N4 photocatalyst is prospected.

辽宁省教育厅项目(L2020016)

10.12422/j.issn.1006-396X.2024.01.006