武汉工程大学学报2024，Vol.46Issue(5)：490-496,542,8.DOI:10.19843/j.cnki.CN42-1779/TQ.202311012
C空位协同g-C3N4/BiOCl异质结对亚甲基蓝光催化降解性能的研究
Photocatalytic degradation of methylene blue by C-vacancy and g-C3N4/BiOCl heterojunction
摘要
Abstract
C-vacancy-containing g-C3N4 was synthesized using a hydrothermal method,and composite photocatalysts of g-C3N4/BiOCl with different BiOCl loadings were prepared.The structure,morphology,and light absorption properties of the photocatalysts were characterized using electron paramagnetic resonance,X-ray photoelectron spectroscopy,scanning electron microscopy,transmission electron microscopy,and ultraviolet-visible diffuse reflectance spectroscopy.Methylene blue was used as the degradation target to investigate the impact of carbon vacancies and BiOCl on the photocatalytic degradation performance of g-C3N4,along with the degradation mechanism of the composite photocatalyst.Results show that the synthesized composite photocatalyst,compared to BiOCl and g-C3N4 alone,can regulate the electronic structure and effectively separate photogenerated electrons and holes.This synergistic effect enhances the efficiency of photocatalytic degradation of methylene blue.With 70%BiOCl loading,the photocatalytic degradation efficiency of g-C3N4/BiOCl reached 88.6%after 90 minutes of light reaction,outperforming pure-phase g-C3N4 and BiOCl.关键词
g-C3N4/BiOCl/碳空位/异质结/光催化降解Key words
g-C3N4/BiOCl/carbon vacancy/heterojunction/photocatalytic degradation分类
化学化工引用本文复制引用
王雪燕,袁嘉泽,何禄英..C空位协同g-C3N4/BiOCl异质结对亚甲基蓝光催化降解性能的研究[J].武汉工程大学学报,2024,46(5):490-496,542,8.基金项目
武汉工程大学第十四届研究生教育创新基金(CX2022026) （CX2022026）
武汉工程大学绿色化工过程教育部重点实验室创新基金(GCX2023005) （GCX2023005）
国家级大学生创新创业训练计划项目(202110490002) （202110490002）
