材料科学技术(英文版)2024，Vol.197Issue(30) ：32-45.DOI:10.1016/j.jmst.2024.01.059

Construction of medium-entropy alloys coupled Z-Scheme heterojunction and its enhanced photocatalytic performance by regulating mechanism of LSPR effect

Jianfei Li Nuotong Zhang Degang Li Yueyun Li Weimin Zhang Zengdian Zhao Shasha Song Yan Liu Luchang Qin Xingliang Bao Bin Zhang Wenxin Dai
材料科学技术(英文版)2024，Vol.197Issue(30) ：32-45.DOI:10.1016/j.jmst.2024.01.059
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Construction of medium-entropy alloys coupled Z-Scheme heterojunction and its enhanced photocatalytic performance by regulating mechanism of LSPR effect

Jianfei Li 1Nuotong Zhang 1Degang Li 1Yueyun Li 1Weimin Zhang 1Zengdian Zhao 1Shasha Song 1Yan Liu 1Luchang Qin 2Xingliang Bao 3Bin Zhang 1Wenxin Dai4
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作者信息

  • 1. School of Chemistry and Chemical Engineering,Shandong University of Technology,Zibo 255000,China
  • 2. Department of Physics and Astronomy,University of North Carolina at Chapel Hill,Chapel Hill,NC 27599-3255,United States
  • 3. Zibo Tengyu Chemical Engineering Co.Ltd.,Zibo 255000,China
  • 4. Research Institute of Photocatalysis,State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350108,China
  • 折叠

Abstract

Optimizing the local surface plasmon resonance(LSPR)effect of non-noble metals through alloying has been crucial for improving its practical application in the field of photocatalysis.Rare studies capture the detail that the change in the electronic structure of metal elements caused by alloying affects plasma carrier concentration and the local surface plasmon resonance effect.Herein,NiCuCoFe medium-entropy alloys(MEAs)nanoclusters were designed and used to modify the Bi3O4Br/CNNs Z-scheme heterojunc-tion.The cocktail effect of MEAs causes the 3d-orbital hybridization of various metal elements,which promotes the release of charge carriers.The higher the carrier concentration,the stronger the LSPR effect of MEAs.In addition,the mechanism of three typical working pathways of the LSPR effect to improve the photocatalytic performance of heterojunction is discussed.And compared with those of Bi3O4Br,CNNs,and Bi3O4Br/CNNs,the rate constant of MEAs-Bi3O4Br/CNNs was 3.26,11.16,and 3.17 times higher during the degradation of norfloxacin,respectively.This study provides a new strategy for understanding the mechanism of LSPR and the rational design of plasmonic coupling architectures for enhanced photocatalysis.

Key words

NiCuCoFe medium-entropy alloys/LSPR/Orbital hybridization/Z-scheme heterojunction/Photocatalysis

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基金项目

National Natural Science Foundation of China(22172092)

PhD Startup Foundation for Science and Technology(420071)

PhD Startup Foundation for Science and Technology(420093)

Natural Science Foundation of Shandong Province(ZR2021MB048)

Natural Science Foundation of Shandong Province(ZR2021MB079)

Development and Application of Cuttingedge Technologies for Comprehensive Utilization of Hydrogen Energy(219213)

出版年

2024
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
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