物理化学学报2026，Vol.42Issue(4)：137-150,14.DOI:10.1016/j.actphy.2025.100177
双内建电场驱动的D-A COFs/ZnIn2S4 S型异质结加速电荷分离实现纯水中高效光合成H2O2
Dual built-in electric field-driven S-scheme heterojunction of D-A COFs/ZnIn2S4 for accelerated charge separation toward high-efficiency H2O2 photosynthesis in pure water
摘要
Abstract
The construction of dual built-in electric field(IEF)-driven S-scheme heterojunctions presents a promising strategy to accelerate efficient charge separation and improve charge utilization in photocatalytic H2O2 production.Herein,we report,the construction of a heterojunction based on donor-acceptor covalent organic frameworks(D-A COFs)TpAQ(synthesized from two monomers:1,3,5-triformylphloroglucinol(Tp)and 2,6-diaminoanthraquinone(AQ))and ZnIn2S4(ZIS),realizing a dual IEF-driven S-scheme heterojunction—one from the heterojunction interface and another from D-A interface within D-A COFs.In particular,the optimized TpAQ/ZIS-10 exhibits a significantly higher visible-light driven photocatalytic H2O2 production rate of 2362 μmol g-1 h-1 in pure water than TpAQ and ZIS by utilizing both the oxygen reduction reaction and water oxidation reaction pathways.Furthermore,the experimental results and theoretical calculations revealed that the synergistic effect of dual IEF in TpAQ/ZIS heterojunction significantly facilitates efficient charge carrier transfer and separation.This work provides valuable insight for constructing highly efficient S-scheme heterojunctions with dual IEF.关键词
双内建电场/S型异质结/D-A COFs/TpAQ/ZIS/光催化产H2O2Key words
Dual built-in electric field/S-scheme heterojunction/D-A COFs/TpAQ/ZIS/Photocatalytic H2O2 production分类
化学化工引用本文复制引用
郭杰,薛丽君,宋发辉,李程鹏,陈卓,温丽丽..双内建电场驱动的D-A COFs/ZnIn2S4 S型异质结加速电荷分离实现纯水中高效光合成H2O2[J].物理化学学报,2026,42(4):137-150,14.基金项目
国家自然科学基金(22171097,21771072) （22171097,21771072）
中央高校基本科研业务费专项资金(CCNU24JCPT019) （CCNU24JCPT019）
催化转化与能源材料化学教育部重点实验室暨催化材料科学湖北省重点实验室开放基金(CHCL21001)和华中师范大学教学研究项目(2025037)资助 （CHCL21001）
