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Frontiers of Optoelectronics

Front Optoelec Chin    2011, Vol. 4 Issue (2) : 166-170     https://doi.org/10.1007/s12200-011-0157-6
RESEARCH ARTICLE
Silver nanoparticles and silver molybdate nanowires complex for surface-enhanced Raman scattering substrate
Zhiyong BAO1, Li ZHANG2(), Yucheng WU1()
1. College of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui Key Laboratory of Spin Electron and Nanomaterials (Cultivating Base), Department of Chemistry and Life Science, Suzhou University, Suzhou 234000, China
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Abstract

Selective synthesis of silver and uniform single crystalline silver molybdate nanowires in large scale can be easily realized by a facile soft template approach. Ag6Mo10O33 nanowires with a uniform diameter of about 50 nm and the length up to several hundred micrometers were synthesized in large scale for the first time at room temperature using 12-silicotungstic acid system. The silver nanoparticles can be easily synthesized with the assistance of UV-light. Sensitive surface-enhanced Raman scattering signals of p-aminothiophenol were observed on Ag nanoparticles and silver molybdate nanowires complex. The results demonstrated that synthetic method could be a potential mild way to selectively synthesize various molybdate nanowires with various phases in large scale. The silver nanoparticles and silver molybdate nanowires complex would be proposed for surface-enhanced Raman scattering substrate.

Keywords 12-tungstosilicate acid      hydrothermal approach      surface-enhanced Raman scattering     
Corresponding Author(s): ZHANG Li,Email:zhlisuzh@163.com; WU Yucheng,Email:ycwu@hfut.edu.cn   
Issue Date: 05 June 2011
 Cite this article:   
Zhiyong BAO,Li ZHANG,Yucheng WU. Silver nanoparticles and silver molybdate nanowires complex for surface-enhanced Raman scattering substrate[J]. Front Optoelec Chin, 2011, 4(2): 166-170.
 URL:  
http://journal.hep.com.cn/foe/EN/10.1007/s12200-011-0157-6
http://journal.hep.com.cn/foe/EN/Y2011/V4/I2/166
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Fig.1  XRD patterns recorded from drop-coated films on glass substrates of silver molybdate synthesized by reaction of TSA solution with aqueous AgNO and NaMoO, before (curve 1) and after (curve 2) UV irradiation (Bragg reflections marked * correspond to Ag)
Fig.1  XRD patterns recorded from drop-coated films on glass substrates of silver molybdate synthesized by reaction of TSA solution with aqueous AgNO and NaMoO, before (curve 1) and after (curve 2) UV irradiation (Bragg reflections marked * correspond to Ag)
Fig.2  A solution method was employed to synthesize SMNs. (a) SEM images of SMNs; (b) SEM images of SMNs covered with Ag nanoparticles; (c) TEM images of SMNs; (d) TEM images of SMNs covered with Ag nanoparticles; insets of (c) are individual SMN and electron diffraction pattern; (e) TEM image of individual SMN covered with Ag nanoparticles, inset shows crystal-lattice image of an individual Ag nanoparticle and SMN; (f) Crystal-lattice image of individual SMN
Fig.2  A solution method was employed to synthesize SMNs. (a) SEM images of SMNs; (b) SEM images of SMNs covered with Ag nanoparticles; (c) TEM images of SMNs; (d) TEM images of SMNs covered with Ag nanoparticles; insets of (c) are individual SMN and electron diffraction pattern; (e) TEM image of individual SMN covered with Ag nanoparticles, inset shows crystal-lattice image of an individual Ag nanoparticle and SMN; (f) Crystal-lattice image of individual SMN
Fig.3  Differential thermal analysis of AgMoO nanowires
Fig.3  Differential thermal analysis of AgMoO nanowires
Fig.4  Raman and SERS spectra of solid PATP (curve 1), and SERS (curve 2) spectra from PATP modified Ag-SMNs complex
Fig.4  Raman and SERS spectra of solid PATP (curve 1), and SERS (curve 2) spectra from PATP modified Ag-SMNs complex
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