Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials

JIANG Xinde; WANG Zhenxi; JIANG Guixian; PENG Yong

doi:10.11949/j.issn.0438-1157.20160484

您当前的位置：

首页 >

文章列表页 >

Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials

更新时间：2025-12-10

- Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials
- CIESC Journal Issue 11, Pages: 4906-4911(2016)
- 作者机构：
  
  南昌工程学院理学院,江西,南昌,330099
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160484
  CLC： B383
- Online First：05 November 2016，
  
  Published：05 November 2016
- 稿件说明：
移动端阅览
JIANG Xinde, WANG Zhenxi, JIANG Guixian, et al. Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials[J]. CIESC Journal, 2016, (11): 4906-4911.
DOI：

JIANG Xinde, WANG Zhenxi, JIANG Guixian, et al. Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials[J]. CIESC Journal, 2016, (11): 4906-4911. DOI： 10.11949/j.issn.0438-1157.20160484.

摘要

以菠萝蜜叶提取液作为保护剂和还原剂制备金银合金纳米颗粒，在333 K和363 K时制备的合金纳米颗粒的金与银的组成比分别约为3：1和1：1。采用紫外-可见分光光度法分别测定金与银纳米颗粒的成核生长动力学，温度对银的成核生长影响更加明显，在363 K时两者成核生长速度相差不到2倍，容易形成比例相当的合金纳米颗粒。对提取液中植物分子反应前后红外分析，得出333 K时有部分银离子没有完全还原而使得合金中相应含量比例较低。而组成约为1：1的合金纳米颗粒在罗丹明的检测中显示出较强的拉曼增强效应。

Abstract

“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.

关键词

Keywords

references

Views

243

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Synthesis of amphiphilic polyphosphoester-PTX prodrug and its potential in reduction-responsive drug release

Synthesis of FeF3 nanoparticles covered by vertical porous carbon for high performance Li-ion battery cathode

Influence of cobalt-manganese ratio adjustment on the properties of LiNi0.8Co0.10-yMn0.05+yAl0.05O2 materials

One-step synthesis of two-dimensional Ti3C2 and its electrochemical performance

Synthesis of bimetallic sulfide CuCo2S4 and its application in lithium-sulfur batteries

Related Author

CHEN Xudong

FU Weidong

LI Jinjin

ZHAO Ling

XI Zhenhao

GE Jiali

GUAN Tuxiang

QIU Xinmin

Related Institution

China State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology

College of Chemical Engineering, Nanjing Tech University

School of Chemistry and Chemical Engineering, Guangzhou University

College of Energy, Soochow University

School of Chemistry and Chemical Engineering, Zunyi Normal University

⁰