Rational construction of CuFe_(2)O_(4)@C/Cd_(0.9)Zn_(0.1)S S-scheme heterojunction photocatalyst for extraordinary photothermal-assisted photocatalytic H_(2) evolution  

作　　者：Dong Zhang Minghui Zhu Ran Qin Peixian Chen Maoye Yin Dafeng Zhang Junchang Liu Hengshuai Li Xipeng Pu Peiqing Cai 

机构地区：[1]School of Physics Science and Information Technology,Shandong Key Laboratory of Optical Communication Science and Technology,Liaocheng University,Liaocheng 252000,Shandong,China [2]School of Materials Science and Engineering,Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology,Liaocheng University,Liaocheng 252000,Shandong,China [3]College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,Zhejiang,China

出　　处：《Journal of Energy Chemistry》2024年第5期240-249,共10页能源化学（英文版）

基　　金：supported by the Shandong Provincial Natural Science Foundation(ZR2022ME179,ZR2021QE086);the Shandong Provincial Key Research and Development Program(Public Welfare Science and Technology Research)(2019GGX103010);the Science and Technology Planning Project of Higher School in Shandong Province(J18KA243);the Liaocheng Key Research and Development Program(Policy guidance category)(2022YDSF90);the Liaocheng University High-level Talents&PhD Research Startup Foundation(318051619)。

摘　　要：Rational design of photocatalyst to maximize the use of sunlight is one of the issues to be solved in photocatalysis technology.In this study,the CuFe_(2)O_(4)@C/Cd_(0.9)Zn_(0.1)S(CFO@C/CZS)S-scheme photocatalyst with photothermal effect was synthesized by ultrasonic self-assembly combined with calcination.The dark CFO@C absorbed visible light and partly converted into heat to promote the hydrogen evolution reaction.The presence of heterojunctions inhibited the photogenerated electron-hole recombination.The graphite-carbon layer provided a stable channel for electron transfer,and the presence of magnetic CFO made recycle easier.Under the action of photothermal assistance and heterojunction,the hydrogen evolution rate of the optimal CFO@C/CZS was 80.79 mmol g^(-1) h^(-1),which was 2.55 times and 260.61 times of that of pure CZS and CFO@C,respectively.Notably,the composite samples also exhibit excellent stability and a wide range of environmental adaptability.Through experimental tests and first-principles simulation calculation methods,the plausible mechanism of photoactivity enhancement was proposed.This work provided a feasible strategy of photothermal assistance for the development of heterojunction photocatalysts with distinctive hydrogen evolution.

关 键 词：Photothermal effect S-scheme heterojunction Photocatalytic hydrogen evolution First-principles calculations 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TQ116.2[化学工程—无机化工]