Ag-nanocubes/graphene-oxide/Au-nanoparticles composite film with highly dense plasmonic hotspots for surface-enhanced Raman scattering detection of pesticide
文献类型：期刊论文
| 作者 | Zhu, Chuhong2; Zhao, Qiangsheng2,3; Wang, Xiujuan3 ; Li, Zhongbo1; Hu, Xiaoye3
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| 刊名 | MICROCHEMICAL JOURNAL
 |
| 出版日期 | 2021-06-01 |
| 卷号 | 165 |
| 关键词 | Surface enhanced Raman scattering Hotspots Plasmon Drinking water Pesticide |
| ISSN号 | 0026-265X |
| DOI | 10.1016/j.microc.2021.106090 |
| 通讯作者 | Zhu, Chuhong(chzhu@issp.ac.cn) ; Hu, Xiaoye(hxy821982@issp.ac.cn) |
| 英文摘要 | Concentration of analyte molecules on or nearby plasmonic nanostructures is crucial for sensitive SERS detection. In this paper, a functional SERS system made of Ag-nanocubes/graphene-oxide/Au-nanoparticles (Ag-NCs/ GO/Au-NPs) composite film on a hydrophobic surface is constructed for effective accumulation and thus sensitive detection of target analyte in water. High density of plasmonic hotspots are generated between Au nanoparticles-assembled film and the Ag-NCs/GO hybrid, remarkably improving SERS activity. The hydrophobic surface is used to concentrate the analyte molecules in an aqueous droplet onto the Ag-NCs/GO/Au-NPs film during the droplet drying process. The hydrophilic graphene oxide sheets can adsorb analyte molecules nearby the plasmonic nanoparticles. The corners of Ag nanocubes, and the narrow nanogaps between neighboring palsmonic nanoparticles, could provide high density of hotspots for high SERS activity. Due to the effective accumulation of analyte molecules on/nearby hotspots, sensitive SERS detection of pesticides has been realized. The fabricated SERS platform was employed to successfully detect an aqueous solution of rhodamine 6G with an ultralow concentration (0.5 pM), conforming the high SERS sensitivity. To show the potential for practical application, SERS detection of pesticides such as thiram and thiabendazole in drinking-water was realized with limits of detection (LODs) - 0.37 ppb and - 8.3 ppb respectively. The functional SERS system may have promising applications in inspection of food safety, monitoring environmental pollutants and so on. |
| WOS关键词 | RHODAMINE 6G ; SERS ; SPECTROSCOPY ; SILVER ; RESIDUES ; WATER ; SITE |
| 资助项目 | Anhui Provincial Natural Science Foundation[1808085 J12] ; Natural Science Foundation of China[21671192] ; Natural Science Foundation of China[51671186] ; Natural Science Foundation of China[21577146] ; Youth Innovation Promotion Association of CAS[2019436] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000647795800002 |
| 出版者 | ELSEVIER |
| 资助机构 | Anhui Provincial Natural Science Foundation ; Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122206]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhu, Chuhong; Hu, Xiaoye |
| 作者单位 | 1.Anhui Agr Univ, Coll Light Text Engn & Art, Hefei 230036, Peoples R China 2.Anhui Univ, Sch Chem & Chem Engn, Anhui Prov Key Lab Chem Inorgan Organ Composite F, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys & Anhui Key Lab Nanomat & Nanote, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Chuhong,Zhao, Qiangsheng,Wang, Xiujuan,et al. Ag-nanocubes/graphene-oxide/Au-nanoparticles composite film with highly dense plasmonic hotspots for surface-enhanced Raman scattering detection of pesticide[J]. MICROCHEMICAL JOURNAL,2021,165. |
| APA | Zhu, Chuhong,Zhao, Qiangsheng,Wang, Xiujuan,Li, Zhongbo,&Hu, Xiaoye.(2021).Ag-nanocubes/graphene-oxide/Au-nanoparticles composite film with highly dense plasmonic hotspots for surface-enhanced Raman scattering detection of pesticide.MICROCHEMICAL JOURNAL,165. |
| MLA | Zhu, Chuhong,et al."Ag-nanocubes/graphene-oxide/Au-nanoparticles composite film with highly dense plasmonic hotspots for surface-enhanced Raman scattering detection of pesticide".MICROCHEMICAL JOURNAL 165(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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