Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials

被引：0
|
作者：
Jiang X. [1 ]
Wang Z. [1 ]
Jiang G. [1 ]
Peng Y. [1 ]
机构：
[1] College of Science, Nanchang Institute of Technology, Nanchang, 330099, Jiangxi
来源：
Huagong Xuebao/CIESC Journal | 2016年 / 67卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Alloy; Bio-reduction; Kinetic modeling; Nanomaterials; Synthesis;
D O I：
10.11949/j.issn.0438-1157.20160484
中图分类号：
学科分类号：
摘要：
"Green" synthesis of bimetallic nanomaterials has drawn considerable attention in the field of nanotechnology. Au-Ag bimetallic nanomaterials were synthesized using extract of Artocarpus heterophyllus Lam leaves as reducing and capping agent. As a result of greater influence of temperature on nucleation and growth of Ag nanoparticles than the Au nanoparticles, Au-Ag alloys with a ratio of Au to Ag in 3:1 were obtained at 333 K, while alloys with a lower ratio of Au to Ag (1:1) were obtained at 363 K. This influence was illustrated by determining the nucleation and growth of Au and Ag nanoparticles using UV-Vis spectrophotometry method respectively, and it was also confirmed by FTIR analysis that only partial biomolecules were oxidized in the synthesis of Au-Ag (3:1) alloys. Au-Ag bimetallic nanoparticle with a ratio of Au to Ag in 1:1 generated a significant Raman enhancement in probing of Rhodamine 6G. © All Right Reserved.
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页码：4906 / 4911
页数：5
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共 22 条
  • [1] Gu J., Zhang Y.W., Tao F., Shape control of bimetallic nanocatalysts through well-designed colloidal chemistry approaches, Chemical Society Reviews, 41, 24, pp. 8050-8065, (2012)
  • [2] Alonso D.M., Wettstein S.G., Dumesic J.A., Bimetallic catalysts for upgrading of biomass to fuels and chemicals, Chemical Society Reviews, 41, 24, pp. 8075-8098, (2012)
  • [3] Alam M.J., Tsuji M., Matsunaga M., Et al., Shape changes in Au-Ag bimetallic systems involving polygonal Au nanocrystals to spherical Au/Ag alloy and excentered Au core Ag/Au alloy shell particles under oil-bath heating, CrystEngComm, 13, 8, pp. 2984-2993, (2011)
  • [4] Pal A., Shah S., Devi S., Synthesis of Au, Ag and Au-Ag alloy nanoparticles in aqueous polymer solution, Colloids and Surfaces A-Physicochemical and Engineering Aspects, 302, 1-3, pp. 51-57, (2007)
  • [5] Rizza G., Attouchi F., Coulon P.E., Et al., Rayleigh-like instability in the ion-shaping of Au-Ag alloy nanoparticles embedded within a silica matrix, Nanotechnology, 22, 17, pp. 4400-4480, (2011)
  • [6] Devarajan S., Bera P., Sampath S., Bimetallic nanoparticles: a single step synthesis, stabilization, and characterization of Au-Ag, Au-Pd, and Au-Pt in sol-gel derived silicates, Journal of Colloid and Interface Science, 290, 1, pp. 117-129, (2005)
  • [7] Huang J.L., Lin L.Q., Sun D.H., Et al., Bio-inspired synthesis of metal nanomaterials and applications, Chemical Society Reviews, 44, 17, pp. 6330-6374, (2015)
  • [8] Shankar S.S., Rai A., Ankamwar B., Et al., Biological synthesis of triangular gold nanoprisms, Nature Materials, 3, 7, pp. 482-488, (2004)
  • [9] Mittal A.K., Chisti Y., Banerjee U.C., Synthesis of metallic nanoparticles using plant extracts, Biotechnology Advances, 31, 2, pp. 346-356, (2013)
  • [10] Akhtar M.S., Panwar J., Yun Y.S., Biogenic synthesis of metallic nanoparticles by plant extracts, ACS Sustainable Chemistry & Engineering, 1, 6, pp. 591-602, (2013)
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