Preparation and Characterization of Au@Ag Nanoparticles with Different Thickness of Ag Shell and Their Effects on Surface-enhanced Raman Scattering Detection

LI Pan; NIE Yong-hui; TENG Yuan-jie; LIU Wen-han

doi:10.3788/fgxb20173809.1233

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Preparation and Characterization of Au@Ag Nanoparticles with Different Thickness of Ag Shell and Their Effects on Surface-enhanced Raman Scattering Detection

更新时间：2020-08-12

- Preparation and Characterization of Au@Ag Nanoparticles with Different Thickness of Ag Shell and Their Effects on Surface-enhanced Raman Scattering Detection
- Chinese Journal of Luminescence Vol. 38, Issue 9, Pages: 1233-1239(2017)
- 作者机构：
  
  浙江工业大学化学工程学院绿色化学合成技术国家重点实验室培育基地,浙江杭州,310032
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20173809.1233
  CLC： O657.37
- Received：18 January 2017，
  
  Revised：07 March 2017，
  
  Published Online：26 May 2017，
  
  Published：05 September 2017
- 稿件说明：
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李盼, 聂永惠, 滕渊洁等. 不同Ag壳厚度Au@Ag纳米粒子的调控制备表征及表面增强拉曼光谱的效应[J]. 发光学报, 2017,38(9): 1233-1239

LI Pan, NIE Yong-hui, TENG Yuan-jie etc. Preparation and Characterization of Au@Ag Nanoparticles with Different Thickness of Ag Shell and Their Effects on Surface-enhanced Raman Scattering Detection[J]. Chinese Journal of Luminescence, 2017,38(9): 1233-1239
李盼, 聂永惠, 滕渊洁等. 不同Ag壳厚度Au@Ag纳米粒子的调控制备表征及表面增强拉曼光谱的效应[J]. 发光学报, 2017,38(9): 1233-1239 DOI： 10.3788/fgxb20173809.1233.

LI Pan, NIE Yong-hui, TENG Yuan-jie etc. Preparation and Characterization of Au@Ag Nanoparticles with Different Thickness of Ag Shell and Their Effects on Surface-enhanced Raman Scattering Detection[J]. Chinese Journal of Luminescence, 2017,38(9): 1233-1239 DOI： 10.3788/fgxb20173809.1233.

摘要

采用化学还原法制备了以Au为核、包覆Ag的双金属核壳Au@Ag纳米粒子，并成功地用于表面增强拉曼光谱（SERS）分析测试。通过改变制备液中Ag/Au的量比来调控Ag壳包覆厚度。采用透射电子显微镜（TEM）和紫外-可见光谱仪（UV-Vis）对Au@Ag纳米粒子的构貌进行表征。TEM显示明显存在核壳结构，且Ag壳层随Ag/Au的量比的增加而逐渐变厚；UV-Vis表明随着Ag/Au的量比的增加，Au@Ag纳米粒子出现了Au核与Ag壳吸收峰的2个等离子体共振峰，同时伴随着Au峰的蓝移和Ag峰的红移。以双甲脒为分析物，考察了不同Ag/Au的量比时的Au@Ag纳米粒子的SERS活性。结果表明，SERS活性随Ag/Au的量比的增加先增大后减小，在6：5时其SERS增强效应最佳，此时Ag壳厚度约为6 nm。以对巯基苯胺（4-ATP）、结晶紫（CV）和双甲脒为分析测试对象，对比了Au@Ag、Ag、Au 3种基底的SERS活性。结果表明，所制备的Au@Ag纳米粒子的SERS活性要明显优于单纯的Au、Ag纳米粒子。

Abstract

Au@Ag core-shell bimetallic nanoparticles were prepared by chemical reduction method and successfully applied to surface-enhanced Raman scattering (SERS) analysis. The thickness of the coated Ag shell is regulated by changing the Ag/Au molar ratios in the preparation solution. The morphology of the Au@Ag nanoparticles were characterized by TEM and further confirmed by UV-Vis. TEM spectra show that Au@Ag nanoparticles have obvious core-shell structure

and the Ag shell layer becomes thicker with the increasing of Ag/Au molar ratio. UV-Vis spectra show that Au@Ag nanoparticles exhibit two plasmon resonance absorption peaks assigned to Au and Ag plasmonic absorption. When Ag/Au molar ratio increases

the Au core resonance is blue-shifted and the Ag shell resonance is red-shifted. The enhanced effects of Au@Ag nanoparticles with different Ag/Au molar ratios in SERS were investigated by using amitraz as a probe. It is found that the SERS intensity of amitraz is enhanced firstly and then becomes weaker with the increasing of Ag/Au molar ratios

The optimum SERS signal appeares when the Ag/Au molar ratio is 6:5 and the thickness of Ag shell is 6 nm. Moreover

the SERS effects of Au@Ag

Ag and Au nanparticles were further compared by using p-mercaptoaniline (4-ATP)

crystal violet (CV) and amitraz as analytes. The results show that the SERS effect of Au@Ag nanoparticles is obviously stronger than that of pure Au or Ag nanoparticles.

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references

CIALLA D, MARZ A, BOHME R, et al.. Surface-enhanced Raman spectroscopy (SERS):progress and trends[J]. Anal. and Bioanal. Chem., 2012, 403(1):27-54.

HAN X X, ZHAO B, OZAKI Y. Surface-enhanced Raman scattering for protein detection[J]. Anal. and Bioanal. Chem., 2009, 394(7):1719-1727.

YUI H. Electron-enhanced Raman scattering:a history of its discovery and spectroscopic applications to solution and interfacial chemistry[J]. Anal. and Bioanal. Chem., 2010, 397(3):1181-1190.

WU H Y, HUANG W L, MICHAEL H H. Direct high-yield synthesis of high aspect ratio gold nanorods[J]. Cryst. Growth Des., 2007, 7(4):831-835.

SUN Y G, XIA Y N. Shape-controlled synthesis of gold and silver nanoparticles[J]. Science, 2002, 298:2176-2179.

KIM D Y, YU T, CHO E C, et al.. Synthesis of gold nanohexapods with controllable arm lengths and their tunable optical properties[J]. Angew. Chem. Int. Ed., 2011, 50(28):6328-6331.

CHEN C L, FURUSHO H, MORI H, et al.. Silver nanowires with a monoclinic structure fabricated by a thermal evaporation method[J]. Nanotechnology, 2009, 20(40):5605-5068.

李莉, 杨武, 郭昊, 等. 内部具有可移动金核的中空银纳米颗粒的制备、表征及其表面增强拉曼效应[J]. 高等学校化学学报, 2008, 29(11):2121-2126. LI L, YANG W, GUO H, et al.. Preparation and characterization of hollow Ag nanoparticles with movable Au cores inside and their application to surface-enhanced Raman scattering[J]. Chem. J. Chin. Univ., 2008, 29(11):2121-2126. (in Chinese)

BAO Y P, CALDCRON H, KRISHNAN K M. Synthesis and characterization of magnetic-optical Co-Au core-shell nanoparticles[J]. J. Phys. Chem. C, 2007, 111(5):1941-1944.

ASWATHY B, SONY G, GOPCHANDRAN K G. Shell thickness-dependent plasmon coupling and creation of SERS hot spots in Au@Ag core-shell nanostructures[J]. Plasmonics, 2014, 9(6):1323-1331.

WANG H, GUO X Y, FU S Y, et al.. Optimized core-shell Au@Ag nanoparticles for label-free Raman determination of trace Rhodamine B with cancer risk in food product[J]. Food chem., 2015, 188:137-142.

SONG L L, MAO K, ZHOU X D, et al.. A novel biosensor based on Au@Ag core-shell nanoparticles for SERS detection of arsenic (Ⅲ)[J]. Tanlanta, 2016, 146:285-290.

KANJANAWARUT R, SU X D. Colorimetric detection of DNA using unmodified metallic nanoparticles and peptide nucleic acid probs[J]. Anal. Chem., 2009, 81:6122-6129.

LEE P C, MEISEL D. Adsorption and surface-enhanced Raman of dyes on silver and gold sols[J]. J. Phys. Chem. C, 1982, 86(17):3391-3395.

OLSON T Y, SCHWARTZBERG A M, ORME C A, et al.. Hollow gold-silver double-shell nanospheres:structure, optical absorption, and surface-enhanced Raman scattering[J]. J. Phys. Chem. C, 2008, 112(16):6319-6329.

HE S T, YAO J N, JIANG P, et al.. Formation of silver nanoparticles and self-assembled two-dimensional ordered superlattice[J]. Langmuir, 2001, 17(5):1571-1575.

刘文涵, 马苏珍, 滕渊洁, 等. 巯基苯并咪唑在银电极表面的自组装吸附特性及表面增强拉曼光谱[J]. 发光学报, 2015, 36(1):106-112. LIU W H, MA S Z, TENG Y J, et al.. Self-assembly behavior of 2-mercaptobenzimidazole on silver electrode investigated by surface enhancement Raman scattering[J]. Chin. J. Lumin., 2015, 36(1):106-112. (in Chinese)

PENA-RODRIGUEZ O, PAL U. Enhanced plasmonic behavior of bimetallic (Ag-Au) multilayered spheres[J]. Nano. Res. Lett., 2011, 6:279-283.

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Related Institution

State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China

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