石墨相氮化碳基二元直接Z型异质结研究进展  

Research progress on graphitic carbon nitride based binary direct Z-scheme heterojunction

作　　者：朱蓓蓓[1,2] 周杰[1] 刁国旺[2] ZHU Beibei;ZHOU Jie;DIAO Guowang(College of Pharmaceutical and Environmental Engineering,Nantong Vocational University,Nantong 226007,China;School of Chemistry&Chemical Engineering,Yangzhou University,Yangzhou 225002,China)

机构地区：[1]南通职业大学药品与环境工程学院,江苏南通226007 [2]扬州大学化学化工学院,江苏扬州225002

出　　处：《石油化工》2024年第10期1497-1504,共8页Petrochemical Technology

基　　金：国家自然科学基金项目(21773203);南通市科技局市级计划项目(MS2023042);南通职业大学重点课题(23ZK01)。

摘　　要：石墨相氮化碳(g-C_(3)N_(4))作为一种无金属聚合物光催化剂,具有独特的性质和出色的性能,但g-C_(3)N_(4)光催化性能受光诱导电荷的快速复合、有限的光响应范围以及较弱的氧化能力等缺陷的制约,通过两种或两种以上半导体构建g-C_(3)N_(4)基异质结是解决以上缺陷的主要策略。综述了g-C_(3)N_(4)基直接Z型异质结的主要特征、光催化机理,详细介绍了基于g-C_(3)N_(4)的二元直接Z型异质结催化剂的制备及电荷载流子转移机制,同时指出目前存在的问题,并对未来发展的方向进行了展望。Graphitic carbon nitride(g-C_(3)N_(4)),a non-metallic polymer photocatalyst,exhibits distinct properties and good performance.However,the photocatalytic activity of g-C_(3)N_(4) is restricted by flaws such as rapid recombination of photo-induced charges,a narrow light response range,and poor oxidation capability.The primary technique for addressing these flaws is to create g-C_(3)N_(4)-based heterojunctions with two or more semiconductors.This paper reviews the key properties and photocatalytic mechanism of g-C_(3)N_(4)-based direct Z-scheme heterojunctions.It also provides a full introduction of the preparation of g-C_(3)N_(4)-based binary direct Z-scheme heterojunction catalysts and its charge carrier transfer mechanism and points out some existing issues.Finally,the paper considers the prospects of this technique.

关 键 词：石墨相氮化碳 二元 直接Z型 异质结 光催化 

分 类 号：TQ127.1[化学工程—无机化工]