摘要
用种子生长法制备了金@银核壳结构的纳米粒子。在制备过程中通过控制氯金酸的浓度和硝酸银的体积,得到了不同粒径的金核和不同厚度的银壳构成的核壳纳米粒子。从而得到了具有不同SERS性能的金@银核壳纳米粒子。选取具有最佳SERS性能的金@银核壳纳米粒子实现了对罗丹明6G的微量检测。
Au@Ag core-shell nanoparticles were prepared by seed-mediated growth method.The plasmon resonance properties of the core-shell nanoparticles are highly dependent on the size and shape of the core and thickness oZ the shell,which could be simply adjusted by varying the concentration oZ HAuCU and the volume of AgNO3.The prepared core-shell nanoparticles exhibit excellent SERS performance as substrate to detect rhodamine 6G(R6G).In addition,the precise control of core-shell morphologies(core size and shape,the thickness of the shell)is of significant importance as it strongly determines the overall SERS performance in micro chemical detection.
作者
刘晓宇
张东杰
张慧娟
张丛筠
刘亚青
LIU Xiao-Yu;ZHANG Dong-Jie;ZHANG Hui-Juan;ZHANG Cong-Yun;LIU Ya-Qing(Shanxi Province Key Laboratory of Functional Nanocomposites,School of Materials Science and Engineering,North University of China,Taiyuan 030051,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2018年第4期712-718,共7页
Chinese Journal of Inorganic Chemistry
基金
supported by the Natural Science Foundation for Young Scientists of Shanxi Province of China (No.2015021078)
International Cooperation of Science and Technology Project in Shanxi Province of China (No.2014081006-2)~~
