Fabrication of cube-like Fe3O4@SiO2@Ag nanocomposites with high SERS activity and their application in pesticide detection

doi:10.1007/s11051-016-3484-0

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院合肥智能机械研究所

	Fabrication of cube-like Fe3O4@SiO2@Ag nanocomposites with high SERS activity and their application in pesticide detection
	Li, Lei1,2,3 ; Zhao, Aiwu 1,2,3; Wang, Dapeng1,2,3 ; Guo, Hongyan1,2,3 ; Sun, Henghui1,3 ; He, Qinye 1,2,3
刊名	JOURNAL OF NANOPARTICLE RESEARCH
	2016-07-01
卷号	18 期号:7 页码:1-10
关键词	Fe3o4@sio2@ag Nanocomposites Hydrothermal Reaction Sers Performance Pesticide Environmental And Health Effects
DOI	10.1007/s11051-016-3484-0
文献子类	Review
英文摘要	The cube-like Fe3O4@SiO2@Ag (FSA) nanocomposites with great SERS activity have been successfully synthesized by a layer-by-layer procedure in this paper. The cube-like Fe3O4@SiO2 core-shell structures were prepared via a new route and Ag nanoparticles were introduced onto their surface through a one-pot hydrothermal reaction. By controlling the reaction time, the coverage rate of Ag on the FSA surface could be tuned, and then a series of FSA composites were obtained. The SERS properties of these FSA composites were investigated using p-aminothiophenol (p-ATP) as the probe molecule. It was found that the FSA composites synthesized with a reaction time of 6 h showed the best SERS performance, and the detection limit for p-ATP could reach 1 x 10(-7) M. For practical application, the FSA composites were also used to detect thiram, one of the dithiocarbamate fungicides that has been widely used as a pesticide in agriculture. The detection limit is as low as 1 x 10(-6) M (0.24 ppm), lower than the maximal residue limit of 7 ppm in fruit prescribed by the US Environmental Protection Agency. The resulting substrate with high SERS activity, stability and strong magnetic responsivity makes the FSA composite a perfect choice for practical SERS detection applications.
WOS关键词	ENHANCED RAMAN-SCATTERING ; TARGETED DRUG-DELIVERY ; COMPOSITE MICROSPHERES ; ALPHA-FE2O3 PARTICLES ; FOLATE RECEPTOR ; 980 NM ; SILICA ; NANOPARTICLES ; THIRAM ; NANORODS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000379166700001
资助机构	National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/30859]
专题	合肥物质科学研究院_中科院合肥智能机械研究所
作者单位	1.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, State Key Lab Transducer Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Lei,Zhao, Aiwu,Wang, Dapeng,et al. Fabrication of cube-like Fe3O4@SiO2@Ag nanocomposites with high SERS activity and their application in pesticide detection[J]. JOURNAL OF NANOPARTICLE RESEARCH,2016,18(7):1-10.
APA	Li, Lei,Zhao, Aiwu,Wang, Dapeng,Guo, Hongyan,Sun, Henghui,&He, Qinye.(2016).Fabrication of cube-like Fe3O4@SiO2@Ag nanocomposites with high SERS activity and their application in pesticide detection.JOURNAL OF NANOPARTICLE RESEARCH,18(7),1-10.
MLA	Li, Lei,et al."Fabrication of cube-like Fe3O4@SiO2@Ag nanocomposites with high SERS activity and their application in pesticide detection".JOURNAL OF NANOPARTICLE RESEARCH 18.7(2016):1-10.