Engineering S-scheme W_(18)O_(49)/ZnIn_(2)S_(4)heterojunction by Co_(x)P nanoclusters for enhanced charge transfer capability and solar hydrogen evolution  

作　　者：Xiaojie Liu Erkang Liu Zixian Wang Wen Zhang Mingyu Dou Hua Yang Changhua An Dacheng Li Jianmin Dou 

机构地区：[1]Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology,School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252059,China [2]Tianjin Key Laboratory of Organic Solar Cell and Photochemical Conversion,School of Chemistry and Chemical Engineering,Tianjin Key Laboratory of Advanced Functional Porous Materials,Institute for New Energy Materials and Low-Carbon Technologies,Tianjin University of Technology,Tianjin 300384,China [3]Institute of Powder Metallurgy and Advanced Ceramics,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China

出　　处：《Nano Research》2024年第9期8095-8103,共9页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22275139 and 21701078);the Natural Science Foundation of Shandong Province(No.ZR2022QB233);the Key Project of Natural Science Foundation of Tianjin City(No.22JCZDJC00510).

摘　　要：Enhancement of the light-absorption response and utilization of the photogenerated carriers represent a robust strategy for the design of high-performance photocatalyst.In this work,grafting Co_(x)P nanoclusters onto S-scheme heterojunction of W18O49/ZnIn2S4(WO/ZIS-CoxP)with strong response to the ultraviolet-visible-near infrared ray(UV-vis-NIR)region has been achieved,which possesses efficient electron-transfer-channel,and boosts charge-separation and transport kinetics.The as-prepared WO/ZIS-Co_(x)P yields an impressive solar-driven hydrogen production rate of 45 mmol·g^(-1)·h^(-1).The increased photocatalytic performance is attributed to the synergistic effect of the composite catalyst:(1)The local surface plasmon resonance-induced“hot electron”injection of W_(18)O_(49)significantly increases the electron density;(2)the engineered S-scheme directional electron transfer promotes charge separation and enhances the reducing capability of photoexcited electrons;and(3)Co_(x)P as electron-trap site for accelerating surface proton reduction reaction.This work provides a platform to impart nonprecious co-catalyst for engineering S-scheme heterojunction,serving a class of efficient solar-driven photocatalyst towards hydrogen production.

关 键 词：hydrogen COCATALYST photocatalysis S-scheme hot electron 

分 类 号：O64[理学—物理化学]