Synthesis and SERS activity of V2O5 nanoparticles

被引：43

作者：

Pan, J. ^{[1
]}

Li, M. ^{[1
]}

Luo, Y. Y. ^{[1
]}

Wu, H. ^{[1
]}

Zhong, L. ^{[1
]}

Wang, Q. ^{[1
]}

Li, G. H. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230031, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2015年 / 333卷

基金：

中国国家自然科学基金;

关键词：

V2O5; Nanoparticles; Microwave-assisted hydrothermal; Size-dependent; SERS; Photo-induced charge transfer process; ENHANCED RAMAN-SCATTERING; NANOSTRUCTURED MATERIALS; AG-NANOPARTICLES; TIO2;

D O I：

10.1016/j.apsusc.2015.01.242

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vanadium pentoxide nanoparticles with different sizes were prepared by a microwave-assisted hydrothermal reduction combined with subsequent annealing treatment. The surface enhanced Raman spectroscopy (SERS) activity of rhodamine 6G (R6G) over V2O5 nanoparticles was investigated. It was found that the SERS activity of R6G is size-dependent, and the smaller the nanoparticle size the higher the SERS activity. The V2O5 nanoparticles with an average size about 42 nm have a detecting limit better than 10(-8) M R6G. The SERS activity of R6G over V2O5 nanoparticles is also excitation wavelength-dependent, and the 532 nm laser displays an optimal SERS activity because of the energy matching between V2O5 nanoparticles and R6G molecules in the photo-induced charge transfer process. (C) 2015 Elsevier B.V. All rights reserved.

引用

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页码：34 / 38

页数：5

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