花状银微纳米结构的合成及SERS性质

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (8): 1491.

花状银微纳米结构的合成及SERS性质

张波^1,2,3, 赵爱武^1,3, 王大朋¹, 郭红燕¹, 李达¹, 李明^1,2

1. 中国科学院合肥智能机械研究所, 230031 合肥;
2. 中国科学技术大学化学系, 230026 合肥;
3. 传感技术联合国家重点实验室, 230031 合肥

收稿日期:2010-03-24 出版日期:2010-08-10 发布日期:2010-08-10
通讯作者: 赵爱武, 女, 研究员, 主要从事微纳米结构材料研究. E-mail: awzhao@iim.ac.cn
基金资助:
国家自然科学基金(批准号: 20873153)、国家“九七三”计划(批准号: 2006CB300407)和中国科学院创新项目(批准号: KSCX2-YW-G-058)资助.

Synthesis and SERS Properties of Flowerlike Ag Micro-nano Structures

ZHANG Bo^1,2,3, ZHAO Ai-Wu^1,3*, WANG Da-Peng¹ , GUO Hong-Yan¹, LI Da1, LI Ming^1,2

1. Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China;
2. Department of Chemistry, University of Science and Technology of China, Hefei 230026, China;
3. State Key Laboratories of Transducer Technology, Hefei 230031, China

Received:2010-03-24 Online:2010-08-10 Published:2010-08-10
Contact: ZHAO Ai-Wu. E-mail: awzhao@iim.ac.cn
Supported by:
国家自然科学基金(批准号: 20873153)、国家“九七三”计划(批准号: 2006CB300407)和中国科学院创新项目(批准号: KSCX2-YW-G-058)资助.

摘要/Abstract

摘要： 通过简便的水溶液方法制备出一种新颖的由纳米片组成的花状银微纳米结构, 采用XRD, SEM, TEM, HRTEM和SAED等手段进行了表征. 考察了反应体系pH值对产物形貌的影响, 并对花状银微纳米结构的形成机理进行了初步探讨. 所制得的微纳米结构由许多纵横交错的纳米片组成. 实验结果表明, 制备的银微纳米结构作为表面增强拉曼散射(Surface-enhanced Raman Scattering, SERS)的基底具有很强的活性.

关键词: 表面增强拉曼散射, 分级结构, 银

Abstract: Novel nanoplate-composed flowerlike Ag micro-nano structures were fabricated by a simple aqueous solution route. The products were characterized by X-ray diffraction(XRD), scanning electronic microscopy(SEM), transmission electron microscopy(TEM), high resolution transmission electron microscopy(HRTEM), and selected area electrical diffraction(SAED). The effect of pH on the morphology of the products was investigated and the mechanisms of the formation of the flowerlike Ag micro-nano structures were discussed preliminarily. The products were composed of a great deal of interlaced nanoplates, experiments indicated that these micro-nano structures have very strong SERS activity as SERS substrates.

Key words: Surface-enhanced Raman scattering, Hierarchy structure, Silver

TrendMD:

张波, 赵爱武, 王大朋, 郭红燕, 李达, 李明. 花状银微纳米结构的合成及SERS性质. 高等学校化学学报, 2010, 31(8): 1491.

ZHANG Bo, ZHAO Ai-Wu*, WANG Da-Peng , GUO Hong-Yan, LI Da, LI Ming. Synthesis and SERS Properties of Flowerlike Ag Micro-nano Structures. Chem. J. Chinese Universities, 2010, 31(8): 1491.

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