高等学校化学学报

• 研究论文 • 上一篇    下一篇

以DDAB为模板的银纳米粒子多层膜制备及其表面增强拉曼效应

李艳彩1, 周吉2, 宋延涛1, 孙长青1   

    1. 吉林大学化学学院;
    2. 超分子结构与材料教育部重点实验室, 长春130012
  • 收稿日期:2006-12-06 修回日期:1900-01-01 出版日期:2007-08-10 发布日期:2007-08-10
  • 通讯作者: 孙长青

Fabrication of Silver Nanoparticle Multilayer Films by Using DDAB Films as a Template and Their Application to Surface-enhanced Raman Scattering

LI Yan-Cai1, ZHOU Ji2, SONG Yan-Tao1, SUN Chang-Qing1*   

    1. College of Chemistry;
    2. Key Laboratory of Supramolecular Structure and Materials of the Ministry of Education, Jilin University, Changchun 130012, China
  • Received:2006-12-06 Revised:1900-01-01 Online:2007-08-10 Published:2007-08-10
  • Contact: SUN Chang-Qing

摘要: 通过离子交换和静电相互作用, 将银纳米粒子引入双十二烷基二甲基溴化铵(DDAB)模板中, 获得了有序的银纳米粒子多层膜. 用紫外-可见光谱(UV-Vis)、循环伏安(CV)和原子力显微镜(AFM)对其进行了表征, 并用小角X射线衍射(XRD)研究了DDAB模板和银纳米粒子多层膜的有序性结构. 以4-巯基吡啶(4-MPY)为探针分子研究了银纳米粒子多层膜在表面增强拉曼(SERS)方面的应用, 结果表明, 4-MPY吸附在银纳米粒子多层膜上呈现很强的SERS信号, 说明该多层膜可以用作高活性的SERS基底.

关键词: DDAB模板, 银纳米粒子多层膜, 表面增强拉曼散射, 4-巯基吡啶

Abstract: Highly ordered silver nanoparticle multilayer films were achieved conveniently by using didodecyldimethylammonium bromide(DDAB) films as a template. The obtained thin films were characterized by UV-Vis spectroscopy, cyclic voltammerty(CV) and atomic force microscopy(AFM) in detail. The well-ordered superlattice structure of the DDAB template and the silver nanoparticle multilayer films were also identified by X-ray diffraction(XRD). The application of the as-prepared silver nanoparticle multilayer films in surface-enhanced Raman spectroscopy(SERS) was investigated by using 4-mercaptopyridine(4-MPY) as the probe molecules. It was found that the silver nanoparticle multilayer films exhibied a remarkable enhancement ability, and can be used as SERS substrates.

Key words: DDAB template, Silver nanoparticle multilayer film, Surface-enhanced Raman scattering, 4-Mercaptopyridine

中图分类号: 

TrendMD: