物理化学学报2024，Vol.40Issue(10)：52-54,3.DOI:10.3866/PKU.WHXB202312010
Cu-石墨炔/双金属钨酸盐S型异质结协同增强光催化析氢
Synergistic Effect of Cu-Graphdiyne/Transition Bimetallic Tungstate Formed S-Scheme Heterojunction for Enhanced Photocatalytic Hydrogen Evolution
摘要
Abstract
Cu-Graphdiyne and CoNiWO4 were synthesized by organic and hydrothermal methods,respectively.The establishment of an S-scheme heterojunction between Cu-Graphdiyne and CoNiWO4 was achieved by interface engineering design.The efficient separation and transfer of photogenerated carriers are facilitated by the synergistic effect of the built-in electric field and band bending,while maintaining the strong redox capacity of the catalysts.The introduction of Cu-Graphdiyne effectively enhances the photo absorption capacity and conductivity of the composite catalyst,and significantly suppresses the recombination of photogenerated carriers.The unique two-dimensional planar network structure of Cu-Graphdiyne provides abundant active sites for photocatalytic processes,thereby facilitating the photocatalytic reaction.Density functional theory(DFT)calculations demonstrate that hot electrons generated by surface plasmon resonance effects of Cu will transfer to Graphdiyne to promote hydrogen evolution reaction.This study offers insights into potential applications of Cu-Graphdiyne and nickel-cobalt based catalysts in photocatalytic hydrogen evolution.关键词
Cu-石墨炔/S-型异质结/界面工程设计/析氢反应/DFTKey words
Cu-graphdiyne/S-scheme heterojunction/Interface engineering design/Hydrogen evolution reaction/DFT分类
化学引用本文复制引用
周正宇,姚惠琴,吴有林,李腾,椿范立,靳治良..Cu-石墨炔/双金属钨酸盐S型异质结协同增强光催化析氢[J].物理化学学报,2024,40(10):52-54,3.基金项目
The project was supported by the Ningxia Hui Autonomous Region Natural Science Foundation Project(2023AAC02046).宁夏回族自治区自然科学基金(2023AAC02046)资助 （2023AAC02046）
