Silver nanoparticles and silver molybdate nanowires complex for surface-enhanced Raman scattering substrate

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

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 20871089), and the Important Projects of Anhui Provincial Education Department (No. KJ2010ZD09).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg