CAJ | 학술논문

石墨型氮化碳（g-C3N4）聚合物是一种具有合适禁带宽度（2.7eV）的新型非金属有机半导体光催化剂，它具有良好的热稳定性和化学稳定性。本文介绍了石墨型氮化碳的结构、理化性质和合成方法，重点阐述了进一步提高石墨型氮化碳光催化活性的方法，包括形貌调控、掺杂改性、共聚合改性和硫介质调控。并论述了石墨型氮化碳在可见光下催化分解水和降解有机污染物方面的应用现状。最后指出进一步探索和优化石墨型氮化碳的合成及改性方法，提高其光催化性能依然是g-C3N4在光催化领域应用的研究重点。
석묵형담화탄（g-C3N4）취합물시일충구유합괄금대관도（2.7eV）적신형비금속유궤반도체광최화제，타구유량호적열은정성화화학은정성。본문개소료석묵형담화탄적결구、이화성질화합성방법，중점천술료진일보제고석묵형담화탄광최화활성적방법，포괄형모조공、참잡개성、공취합개성화류개질조공。병논술료석묵형담화탄재가견광하최화분해수화강해유궤오염물방면적응용현상。최후지출진일보탐색화우화석묵형담화탄적합성급개성방법，제고기광최화성능의연시g-C3N4재광최화영역응용적연구중점。
Polymeric graphitic carbon nitride , g-C3N4 , is a new organic photocatalyst with semiconductor property and proper band gap of 2.7eV,which possesses high thermal and chemical stability. In this paper,the structure,physicochemical properties and preparation methods of g-C3N4 are reviewed. As the photocatalytic activity of g-C3N4 is generally low,the methods to make it an effective photocatalyst are summarized,including texture modification,elements doping and constructing heterojunction with other materials,copolymerization and sulfur-mediated function. In addition,the applications of g-C3N4 for photocatalytic water splitting and degradation of organic water pollutants under visible light are discussed. At the end,it can be concluded that the developing tendency of g-C3N4 as a photocatalyst is exploring and further optimizing the preparation and modification methods to improve its photocatalytic activity.