Fabrication and Surface-Enhanced Raman Spectroscopy Performance of Three-Dimensional Cu(OH)(2)-Ag Substrate

文献类型： 外文期刊

第一作者： Liu Erwei

作者： Liu Erwei;Huang Yuanping;Fan Yapeng;Yang Zengling;Fan Xia

作者机构：

关键词： optics at surfaces; surface enhanced Raman spectroscopy; Cu(OH)(2)-Ag; self-assembly; malachite green

期刊名称：ACTA OPTICA SINICA （ 影响因子：1.6； ）

ISSN： 0253-2239

年卷期： 2021 年 41 卷 16 期

页码：

收录情况： SCI

摘要： In this study, a three-dimensional (3D) Cu(OH)(2)-Ag substrate with abundant "hotspots" is developed. First, the 3D Cu(OH)(2) nanotubes (NTs) are developed on the surface of copper sheets through chemical etching. Then, silver nanoparticles (NPs) are adsorbed onto the surface of Cu(OH)(2) NTs using self-assembly technique. The prepared Cu(OH)(2)-Ag substrate has a high Raman sensitivity with a mass concentration limit of detection (LOD) of 8. 9 x 10(-)(10) g/L for probe molecule rhodamine 6G (R6G). Additionally, it has high uniformity and reproducibility with a relative standard deviation (RSD) of 8.79% and 3. 49%, respectively. Simultaneously, the substrate has excellent sensitivity to malachite green (MG), and the mass concentration LOD of MG in river water is 2.13 x 10(-8) g/L. The 3D substrate is easy to fabricate and has excellent surface-enhanced Raman spectroscopy (SERS) performances. It shows that the substrate has great application prospects in detecting illegal fishery drugs in water.

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