g-C_(3)N_(4)的微观调控在环境治理中的应用  

Application of micro-control of g-C_(3)N_(4)in environmental governance

作　　者：谭栋玉 黄斐 张武 Tan Dongyu;Huang Fei;Zhang Wu(College of Marine and Environmental Sciences,Tianjin University of Science&Technology,Tianjin 300457;Tianjin Key Laboratory of Marine Resources and Chemistry,Tianjin 300457;Tianjin Marine Environmental Protection and Remediation Technology Engineering Center,Tianjin 300457)

机构地区：[1]天津科技大学海洋与环境学院,天津300457 [2]天津市海洋资源与化学重点实验室,天津300457 [3]天津市海洋环境保护与修复技术工程中心,天津300457

出　　处：《化工新型材料》2023年第5期270-276,共7页New Chemical Materials

基　　金：国家自然科学基金(51503148);天津市应用基础与前沿技术研究计划(15JCQNJC09000);天津市普通高等学校本科教学质量与教学改革研究计划(B201005705)。

摘　　要：石墨相氮化碳(g-C_(3)N_(4))是一种无金属光催化剂,具有环境友好、良好的热稳定性和化学稳定性,以及优异的光电化学性质等优点。但另一方面,其比表面积低、活性位点少、光生电子-空穴对复合速度快等缺陷限制了其光催化应用。综述了g-C_(3)N_(4)的改性方法,包括微观纳米化增强响应速度及增加活性位点,复合半导体增加载流子传输速率,构筑异质结提升电子-空穴分离效率等。经改性处理后,g-C_(3)N_(4)降解污染物的效率大大增加。g-C_(3)N_(4)is a kind of non-metallic photocatalyst with environmental friendliness,good thermal and chemical stability,excellent optical and photoelectrochemical characteristics.However,the photocatalytic performance of g-C_(3)N_(4)is limited by its low specific surface area,less active sites,and fast recombination speed of photogenerated electrons and holes.In this paper,the methods for improving the catalytic performance of g-C_(3)N_(4)were reviewed,including microscopic nanosizing to enhance the response speed and increase the active sites,composite semiconductor to increase the carrier transport rate,and heterojunction to improve the efficiency of electron-hole separation.After g-C_(3)N_(4)modification treatment,the degradation efficiency of g-C_(3)N_(4)for pollutants was greatly increased.

关 键 词：石墨相氮化碳 2D/2D材料 形貌调控 微观纳米化 

分 类 号：TB34[一般工业技术—材料科学与工程]