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

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外文摘要：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.

外文关键词：

NiCuCoFe medium-entropy alloysLSPROrbital hybridizationZ-scheme heterojunctionPhotocatalysis

作者：

Jianfei Li、Nuotong Zhang、Degang Li、Yueyun Li、Weimin Zhang、Zengdian Zhao、Shasha Song、Yan Liu、Luchang Qin、Xingliang Bao、Bin Zhang、Wenxin Dai

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作者单位：

School of Chemistry and Chemical Engineering,Shandong University of Technology,Zibo 255000,China

Department of Physics and Astronomy,University of North Carolina at Chapel Hill,Chapel Hill,NC 27599-3255,United States

Zibo Tengyu Chemical Engineering Co.Ltd.,Zibo 255000,China

Research Institute of Photocatalysis,State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350108,China

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基金：

National Natural Science Foundation of ChinaPhD Startup Foundation for Science and TechnologyPhD Startup Foundation for Science and TechnologyNatural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong ProvinceDevelopment and Application of Cuttingedge Technologies for Comprehensive Utilization of Hydrogen Energy

项目编号：

22172092420071420093ZR2021MB048ZR2021MB079219213

出版年：

2024

DOI：

10.1016/j.jmst.2024.01.059

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

年,卷(期)：2024.197(30)