Two-dimensional flower-shaped Au@Ag nanoparticle arrays as effective SERS substrates with high sensitivity and reproducibility for detection of thiram

doi:10.1039/c9tc06577f

	Two-dimensional flower-shaped Au@Ag nanoparticle arrays as effective SERS substrates with high sensitivity and reproducibility for detection of thiram
	Xing, Changchang 2,3; Zhong, Shichuan 2,3; Yu, Jie 2,3; Li, Xuejiao 2,3; Cao, An 2,3; Men, Dandan 1; Wu, Bo 4; Cai, Weiping 2; Li, Yue 2
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2020-03-21
卷号	8
ISSN号	2050-7526
DOI	10.1039/c9tc06577f
通讯作者	Men, Dandan(mendandan1999@126.com) ; Li, Yue(yueli@issp.ac.cn)
英文摘要	A simple and controllable route is presented for the construction of two-dimensional (2D) flower-shaped Au@Ag nanoparticle (NP) arrays through in situ chemical reduction growth of Ag nanosheets on Au NP arrays. Such micro-/nanostructured arrays composed of interlaced Ag nanosheets can act as good candidates for SERS substrates due to numerous "hot spots" generated by the rough surface of the nanosheets and small nanogaps less than 10 nm between the Au@Ag NPs. After optimizing the experimental parameters (an array periodicity of 500 nm and a growth time of 20 min), the flower-shaped Au@Ag NP array as a SERS substrate has a low detection limit (10(-11) M) for thiram, which is a commonly used pesticide molecule and causes environmental pollution due to excessive use. The array also exhibits very good SERS signal uniformity and repeatability (RSD approximate to 7.4%) because of the abundance of "hot spots" and highly ordered structures on a large scale. Such 2D flower-shaped Au@Ag NP arrays with economical preparation and excellent SERS properties are meaningful for the practical applications of organic molecular Raman detection.
资助项目	National Science Fund for Distinguished Young Scholars[51825103] ; National Key Research and Development Program of China[2017YFA0207101] ; Open Project of State Key Laboratory of Environment-friendly Energy Materials[19kfhg08] ; Natural Science Foundation of China[51771188] ; Natural Science Foundation of China[51571189] ; Natural Science Foundation of China[51701054]
WOS关键词	PERIODIC MICRO/NANOSTRUCTURED ARRAYS ; RAMAN-SPECTROSCOPY SUBSTRATE ; PESTICIDE-RESIDUES ; TUNABLE NANOGAPS ; ORDERED ARRAY ; GROWTH ; FRUITS ; NANOSTRUCTURES ; IMMUNOASSAY ; FABRICATION
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000528591300024
资助机构	National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; Open Project of State Key Laboratory of Environment-friendly Energy Materials ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103439]
专题	中国科学院合肥物质科学研究院
通讯作者	Men, Dandan; Li, Yue
作者单位	1.Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Surface Engn, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Southwest Univ Sci & Technol, State Key Lab Erwironment Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Xing, Changchang,Zhong, Shichuan,Yu, Jie,et al. Two-dimensional flower-shaped Au@Ag nanoparticle arrays as effective SERS substrates with high sensitivity and reproducibility for detection of thiram[J]. JOURNAL OF MATERIALS CHEMISTRY C,2020,8.
APA	Xing, Changchang.,Zhong, Shichuan.,Yu, Jie.,Li, Xuejiao.,Cao, An.,...&Li, Yue.(2020).Two-dimensional flower-shaped Au@Ag nanoparticle arrays as effective SERS substrates with high sensitivity and reproducibility for detection of thiram.JOURNAL OF MATERIALS CHEMISTRY C,8.
MLA	Xing, Changchang,et al."Two-dimensional flower-shaped Au@Ag nanoparticle arrays as effective SERS substrates with high sensitivity and reproducibility for detection of thiram".JOURNAL OF MATERIALS CHEMISTRY C 8(2020).