中国石油大学学报（自然科学版）2024，Vol.48Issue(4)：206-214,9.DOI:10.3969/j.issn.1673-5005.2024.04.023
ZnO/CN复合纳米材料的制备及其光催化性能
Preparation of ZnO/CN composite nanomaterials and their photocatalytic performance
摘要
Abstract
The composite nanomaterial ZnO/CN was prepared by combining zinc-layered double hydroxide(Zn-LDH)and carbon nitride(g-C3 N4).The photocatalytic performance of ZnO/CN was investigated,and its photocatalytic mechanism was analyzed.The results show that LDH layer structure appears in g-C3 N4 with the increase of Zn content after the introduction of Zn source,which increases its specific surface area.At the same time,with the generation of ZnO,ZnO/CN composite nanomaterials are formed,and ZnO and g-C3 N4 are connected by Zn-N covalent bond through coordination.The formation of Zn-N bonds in the composite catalyst significantly reduces the singlet-triplet energy level difference(ΔEST)value,promoting the intersystem crossing(ISC)process and enhancing the efficiency of singlet oxygen(1 O2)generation while inhibiting other reactive oxygen species(ROS)production.After 120 min of photocatalytic oxidation using 1,5-dihydroxynaphthalene(1,5-DHN),the yield of Juglone can be reached 70％.关键词
单线态氧/氮化碳/过渡金属/复合材料Key words
1 O2/g-C3 N4/transition metal/composite material分类
天文与地球科学引用本文复制引用
吴文婷,吴梓涵,刘君丽..ZnO/CN复合纳米材料的制备及其光催化性能[J].中国石油大学学报（自然科学版）,2024,48(4):206-214,9.基金项目
国家自然科学基金项目(51672309,51172285,51372277) （51672309,51172285,51372277）
