物理化学学报2024，Vol.40Issue(11)：27-28,2.DOI:10.3866/PKU.WHXB202403009
钛酸铋/氮化碳无机有机复合S型异质结纯水光催化产过氧化氢
Architecting Inorganic/Organic S-Scheme Heterojunction of Bi4Ti3O12 Coupling with g-C3N4 for Photocatalytic H2O2 Production from Pure Water
摘要
Abstract
Hydrogen peroxide(H2O2)plays a significant role as an industrial chemical and potential energy carrier.However,common H2O2 photosynthesis catalysts face challenges such as limited solar spectrum absorption,severe agglomeration,and difficulty in reuse,hindering their widespread application.In this study,an inorganic/organic heterojunction photocatalyst comprising g-C3N4 nanosheets and Bi4Ti3O12 nanofibers is synthesized using electrospinning assisted self-assembly methods.The Bi4Ti3O12/g-C3N4 heterojunction exhibits significantly enhanced H2O2 yield of 1650 μmol∙g-1∙h-1 and efficient H2O2 photosynthesis directly from pure water.The improved performance is attributed to enhanced visible light absorption,charge separation efficiency,and boosting redox properties of photoinduced carriers in S-scheme heterojunctions.Additionally,the utilization of in situ X-ray photoelectron spectroscopy(ISXPS)enables the investigation of the S-scheme mechanism and dynamics of inorganic/organic Bi4Ti3O12/g-C3N4 heterojunctions.This research presents a novel approach for designing inorganic/organic heterojunction photocatalysts for solar-driven H2O2 production.关键词
异质结/光催化/过氧化氢生成/S型机理Key words
Heterojunction/Photocatalysis/Hydrogen peroxide production/S-scheme mechanism分类
化学化工引用本文复制引用
李可,刘创,李静萍,王国宏,王楷..钛酸铋/氮化碳无机有机复合S型异质结纯水光催化产过氧化氢[J].物理化学学报,2024,40(11):27-28,2.基金项目
This work was supported by the National Natural Science Foundation of China(22378104,52104254)and the Open Subject of Engineering Research Center for Clean Production of Textile Printing and Dyeing,Ministry of Education(2023GCZX008). 国家自然科学基金(22378104,52104254),纺织印染清洁生产教育部工程研究中心开放课题(2023GCZX008)资助项目 （22378104,52104254）
