物理化学学报2024，Vol.40Issue(11)：44-44,1.DOI:10.3866/PKU.WHXB202406024
Ni掺杂构建电子桥及激活MoS2惰性基面增强光催化分解水产氢
Construction of Electron Bridge and Activation of MoS2 Inert Basal Planes by Ni Doping for Enhancing Photocatalytic Hydrogen Evolution
摘要
Abstract
Photocatalytic hydrogen production is one of the effective ways to address environmental pollution and energy crises.Herein,Nix-MoS2/ZnIn2S4 heterojunctions were constructed to improve the separation efficiency of photogenerated electrons and holes and increase the number of active sites for hydrogen evolution.According to the catalyst characterization and theoretical calculations,the Ni at the interface between Nix-MoS2 and ZnIn2S4 can act as a bridge for charge transfer,the Ni―S bond is the active site for H2O dissociation,and the S site near the S vacancy on the Nix-MoS2 surface enhances the hydrogen evolution reaction.Benefiting from the synergistic effect of the S vacancy and the Ni-doped MoS2 cocatalyst,the optimal Ni0.08-MoS2/ZnIn2S4 exhibited the best hydrogen production rate of 7.13 mmol∙h-1∙g-1,which is 12.08 times than that of ZnIn2S4.This work provides a new strategy for enhancing photocatalytic efficiency through the synergistic effect of surface vacancies and doping and the optimization of heterojunctions.关键词
Photocatalytic/Hydrogen/ZnIn2S4/MoS2/DopingKey words
Photocatalytic/Hydrogen/ZnIn2S4/MoS2/Doping引用本文复制引用
胡琴,陈柳云,谢新玲,秦祖赠,纪红兵,苏通明..Ni掺杂构建电子桥及激活MoS2惰性基面增强光催化分解水产氢[J].物理化学学报,2024,40(11):44-44,1.基金项目
This work was supported by the National Natural Science Foundation of China(22208065),Guangxi Natural Science Foundation(2022GXNSFBA035483),Opening Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology(2023K012),and Special Funding for'Guangxi Bagui Scholars'. 国家自然科学基金(22208065),广西自然科学基金(2022GXNSFBA035483),广西石化资源加工及过程强化技术重点实验室开放基金(2023K012)和广西八桂学者专项资金资助项目 （22208065）
