g-C3N4/ZnO复合光催化剂降解污染物的研究进展
Research Progress on g-C3N4/ZnO Composite Photocatalysts for Pollutant Degradation
赵一民 1彭敬 1吕玉莹 1陈款 1段成杰 1卜俊方 1郑兴芳1
作者信息
- 1. 临沂大学 化学化工学院,山东 临沂 276000
- 折叠
摘要
ZnO具有光催化活性强、稳定性高等优点,然而,ZnO禁带宽度大,只能吸收紫外光,太阳能利用率低;且其光生电子易与空穴复合,量子效率低.g-C3N4 是一种窄带隙半导体,与ZnO复合形成异质结,不仅可以提高太阳光利用率,而且能加快载流子转移,提高光催化性能.通过文献研究综述了g-C3N4/ZnO复合光催化剂的四种复合形式,以及g-C3N4、ZnO与其他物质复合而成的三元、四元复合材料,并对 g-C3N4/ZnO 复合光催化剂的未来发展方向进行了展望.
Abstract
ZnO has the advantages of strong photocatalytic activity and high thermal stability.However,because of its large band gap,ZnO can only absorb ultraviolet light,and its solar energy utilization rate is low;And its photo generated electrons are easy to recombine with holes,re-sulting in low quantum efficiency.g-C3N4 is a narrow band gap semiconductor that combines with ZnO to form a heterojunction,which not only improves solar light utilization but also accelerates carrier transfer and improves photocatalytic performance.This article mainly reviews the four composite forms of g-C3N4/ZnO composite photocatalysts,as well as the ternary and quaternary composite materials composed of g-C3N4/ZnO with other substances,and prospects the future development direction of g-C3N4/ZnO composite photocatalysts.
关键词
g-C3N4/ZnO/光催化剂/降解/复合/研究进展Key words
g-C3N4/ZnO/Photocatalyst/Degradation/Composite/Research progress引用本文复制引用
基金项目
临沂大学大学生创新创业训练计划(X202310452484)
临沂大学教学改革项目(JG2022M32)
出版年
2024
国家科技期刊平台
NSTL
万方数据