One-step fabrication of Au-Ag alloys and its application for catalysts and SERS sensors

被引：7
|
作者：
Wei, Wenxian [1 ]
Yu, Dan [2 ]
Du, Yu [2 ]
Ding, Yicheng [2 ]
Huang, Qingli [2 ]
机构：
[1] Yangzhou Univ, Testing Ctr, Yangzhou 225009, Jiangsu, Peoples R China
[2] Xuzhou Med Univ, Publ Expt Res Ctr, Xuzhou 221004, Jiangsu, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2022年 / 267卷
基金：
中国国家自然科学基金;
关键词：
Au-Ag alloy; Catalysis; Hydrothermal; Surface-enhanced Raman spectroscopy; SILVER NANOPARTICLES; GREEN SYNTHESIS; LABEL-FREE; REDUCTION; GOLD; FACILE; PERFORMANCE; NANOSTRUCTURES; RESIDUES; HYBRIDS;
D O I：
10.1016/j.saa.2021.120476
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Au-Ag alloy nanoparticles (NPs) with controllable size and composition were synthesized by a facile, one-pot hydrothermal method. Various characterization techniques including TEM, UV-vis, EDX, HAADF-STEM and XPS were used to discuss the influencing factors for the size and composition of Au-Ag alloy NPs. It is obvious that the size and composition of Au-Ag alloy NPs could be adjusted by the experimental parameters. Catalytic and SERS performance of the Au-Ag alloy NPs were further investigated. Ideal cat-alytic and SERS performance could be also obtained via optimizing the size and composition of Au-Ag alloy. This work is of importance in theory research and practical application of the noble metal nanocomposites. (c) 2021 Elsevier B.V. All rights reserved.
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页数：8
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