Template-assisted fabrication of Ag-nanoparticles@ZnO-nanorods array as recyclable 3D surface enhanced Raman scattering substrate for rapid detection of trace pesticides | |
Huo Dexian; Chen Bin; Li Mingtao; Meng Guowen; Lei Yong; Zhu Chuhong | |
刊名 | Nanotechnology |
2020-10 | |
ISSN号 | 0957-4484 |
DOI | 10.1088/1361-6528/abc50e |
英文摘要 | We present a template-assisted fabrication method for a large-scale ordered arrays of ZnO nanorods (ZnO-NRs) modified with Ag nanoparticles (Ag-NPs), which possess high-density three-dimensional (3D) hot spots uniformly dispersed all over the substrate, being beneficial to ultrahigh sensitivity of surface enhanced Raman scattering (SERS) detection. These achieved Ag-NPs@ZnO-NRs arrays show high sensitivity, good spectral uniformity and reproducibility as substrates for SERS detection. Using the arrays, both dye molecules (rhodamine 6G, R6G) and organic pollutants like toxic pesticides (thiram and methyl parathion) are detected, with the detection limits of thiram and methyl parathion being 0.79*10-9 M and 1.51*10-8 M, respectively. In addition, the Ag-NPs@ZnO-NRs arrays have a self-cleaning function because the analyte molecules can be photocatalytic degraded using ultraviolet irradiation, showing that the 3D recyclable arrays have promising opportunities to be applied in rapid SERS-based detection of toxic organic pesticides. |
URL标识 | 查看原文 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/92859] |
专题 | 合肥物质科学研究院_中科院固体物理研究所 |
通讯作者 | Meng Guowen; Lei Yong; Zhu Chuhong |
作者单位 | 1.Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, P.O. Box 1129, Hefei 230031, China. 2.Institut für Physik & IMN MacroNano@ (ZIK), Technische Universität Imenau, 98693 Ilmenau, Germany 3.University of Science and Technology of China, Hefei 230026, China |
推荐引用方式 GB/T 7714 | Huo Dexian,Chen Bin,Li Mingtao,et al. Template-assisted fabrication of Ag-nanoparticles@ZnO-nanorods array as recyclable 3D surface enhanced Raman scattering substrate for rapid detection of trace pesticides[J]. Nanotechnology,2020. |
APA | Huo Dexian,Chen Bin,Li Mingtao,Meng Guowen,Lei Yong,&Zhu Chuhong.(2020).Template-assisted fabrication of Ag-nanoparticles@ZnO-nanorods array as recyclable 3D surface enhanced Raman scattering substrate for rapid detection of trace pesticides.Nanotechnology. |
MLA | Huo Dexian,et al."Template-assisted fabrication of Ag-nanoparticles@ZnO-nanorods array as recyclable 3D surface enhanced Raman scattering substrate for rapid detection of trace pesticides".Nanotechnology (2020). |
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