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.
作者
朱蓓蓓
周杰
刁国旺
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)
出处
《石油化工》
CAS
CSCD
北大核心
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)。
关键词
石墨相氮化碳
二元
直接Z型
异质结
光催化
graphitic carbon nitride
binary
direct Z-scheme
heterojunction
photocatalysis
作者简介
朱蓓蓓(1981-),女,江苏省南通市人,硕士,副教授,电话0513-81050856,电邮joymole@njtech.edu.cn。
