Single-atomic activation on ZnIn_(2)S_(4)basal planes boosts photocatalytic hydrogen evolution  

作　　者：Jianpeng Cui Ying Wang Luxue Lin Xiaotian Yang Xuyu Luo Shiying Guo Xiaoyong Xu 

机构地区：[1]College of Physics Science and Technology,and Center for Interdisciplinary Research,Yangzhou University,Yangzhou 225002,China

出　　处：《Nano Research》2024年第7期5949-5955,共7页纳米研究（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.11974303 and 12074332);the Qinglan Project(No.337050073)of Jiangsu Province;the High-End Talent Program(No.137080210);the Yangzhou University Interdisciplinary Research Project of Chemistry Discipline(No.yzuxk202014);the Innovative Science and Technology Platform Project of Cooperation between Yangzhou City and Yangzhou University(No.YZ2020263).

摘　　要：The use of single-atom cocatalysts plays a crucial role in enhancing artificial photocatalysis,where the precise construction of stable and efficient single-atom configuration is essential but remains challenging.Here,we report a simple one-step hydrothermal method for preparing single-atomic Mo modified ZnIn_(2)S_(4)(Mo-ZIS)nanosheets as a highly active photocatalytic hydrogen evolution(PHE)photocatalyst.The Mo substituting for portion of In atoms in ZIS nanosheets induces the spatial charge redistribution,which not only promotes the separation of photogenerated charge carriers but also optimizes the Gibbs free energy of adsorbing H*on S atoms at basal planes.As a result,Mo-ZIS exhibits an impressive PHE rate as high as 6.71 mmol·g^(−1)·h^(−1),over 10 times that of the pristine ZIS,with an apparent quantum efficiency(AQE)up to 38.8%at 420 nm.This study gains insights into the coordination configuration and electronic modulation resulting from single-atomic decoration,providing mechanistic cognitions for the development of advanced photocatalysts via non-precious metal atomic modification.

关 键 词：photocatalytic hydrogen evolution ZnIn_(2)S_(4) single-atom activation Gibbs free energy 

分 类 号：TB383[一般工业技术—材料科学与工程]