天津工业大学学报2024，Vol.43Issue(4)：30-35,6.DOI:10.3969/j.issn.1671-024x.2024.04.006
g-C3Nx@ZnxO异质催化剂的制备与可见光催化活性
Preparation and visible light photocatalytic activity of g-C3Nx@ZnxO heterojunction catalyst
摘要
Abstract
In order to address the defects of conventional ZnO photocatalysts such as wide energy band gap,low quantum yield and poor stability,ZIF-8 was grown in situ on the surface of g-C3Nx with g-C3Nx as the substrate and ZnO as a metal source,and g-C3Nx@ZnxO heterogeneous catalysts with high stability and visible photocatalytic activity were fabricated after high temperature calcination.The experimental materials were characterized analytically us-ing TEM,XRD,UV-DRS,transient photocurrent and g-C3 Nx@ZnxO was used for the visible photocatalytic degradation of methylene blue organics in aqueous environment.The results show that the introduction of g-C3Nx and ZIF-8 leads to a narrowing of the optical absorption energy band gap,an enhancement of the transient pho-tocurrent response signal,and a reduction of the photogenerated electron-hole pairs in the material.The visible light degradation rate of methylene blue catalyzed by g-C3Nx@ZnxO reached 98.45％.关键词
类石墨碳化氮/金属有机骨架材料/ZIF-8/可见光催化/有机污染物Key words
graphite-like nitrogen carbide/metal-organic frameworks/ZIF-8/visible light catalysis/organic pollutants分类
化学化工引用本文复制引用
李颖,丁竹,聂学童,陶莹..g-C3Nx@ZnxO异质催化剂的制备与可见光催化活性[J].天津工业大学学报,2024,43(4):30-35,6.基金项目
国家自然科学基金资助项目(22078246) （22078246）
天津市大学生创新训练计划项目(202210058051) （202210058051）
