化工学报2016，Vol.67Issue(11)：4906-4911,6.DOI:10.11949/j.issn.0438-1157.20160484
植物还原法制备Au-Ag合金纳米材料及其拉曼应用
Raman enhancement of biosynthesized Au-Ag bimetallic nanomaterials
摘要
Abstract
“Green” synthesis of bimetallic nanomaterials has drawn considerable attention in the field of nanotechnology. Au-Ag bimetallic nanomaterials were synthesized using extract ofArtocarpus 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
纳米材料/合成/动力学模型/合金/植物还原法Key words
nanomaterials/synthesis/kinetic modeling/alloy/bio-reduction分类
通用工业技术引用本文复制引用
江新德,王振希,江桂仙,彭勇..植物还原法制备Au-Ag合金纳米材料及其拉曼应用[J].化工学报,2016,67(11):4906-4911,6.基金项目
国家自然科学基金项目（51303074，21506088）；江西省自然科学基金项目（20161BBF60061）。@@@@Foundation item：supported by the National Natural Science Foundation of China (51303074,21506088) and the Natural Science Foundation of Jiangxi Province (20161BBF60061) （51303074,21506088）
