金@银核壳纳米粒子的制备和形貌的精确控制及其表面增强拉曼光谱性能
Synthesis of Au@Ag Core-Shell Nanoparticles for Sensitive Surface-Enhanced Raman Scattering by Precisely Adjust Its Morphology
作者单位E-mail
刘晓宇 中北大学功能纳米复合材料山西省重点实验室, 太原 030051  
张东杰 中北大学功能纳米复合材料山西省重点实验室, 太原 030051  
张慧娟 中北大学功能纳米复合材料山西省重点实验室, 太原 030051  
张丛筠 中北大学功能纳米复合材料山西省重点实验室, 太原 030051 z.congyun@nuc.edu.cn 
刘亚青 中北大学功能纳米复合材料山西省重点实验室, 太原 030051 lyq@nuc.edu.cn 
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。
关键词: 金@银核壳纳米粒子  表面增强拉曼光谱  罗丹明6G
基金项目: 山西省青年科学家自然科学基金(No.2015021078)项目资助。
Abstract: 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 of the shell, which could be simply adjusted by varying the concentration of HAuCl4 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.
Keywords: Au@Ag core-shell nanoparticles  SERS  rhodamine 6G
投稿时间:2017-07-05 修订日期:2017-09-12
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刘晓宇,张东杰,张慧娟,张丛筠,刘亚青.金@银核壳纳米粒子的制备和形貌的精确控制及其表面增强拉曼光谱性能[J].无机化学学报,2018,34(4):712-718.
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