物理化学学报2024，Vol.40Issue(11)：43-43,1.DOI:10.3866/PKU.WHXB202406020
用于高效制氢的双S型ZnS/ZnO/CdS异质结构光催化剂
Double S-Scheme ZnS/ZnO/CdS Heterostructure Photocatalyst for Efficient Hydrogen Production
摘要
Abstract
This work illustrates the novelty of double S-scheme ZnS/ZnO/CdS ternary heterojunction photocatalyst with efficient photocatalytic activity.The sample with optimal CdS content,ZnS/ZnO/CdS-14%(ZZC14%),displayed the maximum H2 evolution rate of 4.1 mmol·g–1·h–1.The maximum photocatalytic performance was approximately 2 and 13 times higher than their corresponding counterparts,ZnS/CdS and ZnO/ZnS,respectively.A high AQE of 19.8%under 420 nm was obtained.Additionally,the slight changes in H2 evolution activities and retentions of crystal structures after six successive cycles indicate the stability of the photocatalyst.In accordance with the theoretical calculations and experimental results,the remarkable enhancement in photocatalytic activity is attributed to fast electron transfer and separation as well as the intimate contact due to mutual interaction between S-scheme.This work highlights an innovative approach to constructing a dual S-scheme photocatalytic system with high separation and fast migration capabilities of photogenerated charge carriers for splitting water to produce hydrogen.关键词
双S型光催化剂/内部电场/析氢/三元异质结Key words
Double S-scheme photocatalyst/Internal electric field/Hydrogen evolution/Ternary heterojunction分类
化学化工引用本文复制引用
Asif Hassan Raza,Shumail Farhan,余志贤,吴艳..用于高效制氢的双S型ZnS/ZnO/CdS异质结构光催化剂[J].物理化学学报,2024,40(11):43-43,1.基金项目
This work was supported by the National Natural Science Foundation of China(22378372)and Chinese Government Scholarship. 国家自然科学基金(22378372)和中国政府奖学金资助项目 （22378372）
