中华医学超声杂志

应用化学 ›› 2015, Vol. 32 ›› Issue (2): 221-224.DOI: 10.11944/j.issn.1000-0518.2015.02.140177

• 研究论文 • 上一篇    下一篇

钴岛膜上对巯基苯甲酸的表面增强红外吸收光谱

闫月荣a, b, 高成庄b, 张艳青a, 褚文娅c, 李双双c, 赵伟c, 周群c, 李晓伟a*, *   

  1. a苏州大学物理与光电·能源学部 江苏 苏州 215006
    b焦作师范高等专科学校理工学院 河南 焦作 454000
    c苏州大学材料与化学化工学部 江苏 苏州 215123
  • 收稿日期:2014-05-12 修回日期:2014-09-28 出版日期:2015-02-10 发布日期:2015-02-10
  • 通讯作者: 李晓伟，高级工程师; Tel:0512-67586075; Fax:0512-67586056; Email:lixiaowei@suda.edu.cn; 研究方向：光谱电化学，锂离子电池材料
  • 基金资助:
    河南省科技厅基础与前沿基金(112300410326); 焦作市科技局基础与前沿项目(208,211)

Surface-enhanced Infrared Absorption Spectroscopy of the Para-mercaptobenzoic acid on the Cobalt-island Film

YAN Yueronga, b, GAO Chengzhuangb, ZHANG Yanqinga, CHU Wengyac, LI Shuangshuangc, ZHAO Weic, ZHOU Qunc, LI Xiaoweia, *   

  1. aCollege of Physics,Optoelectronics and Energy,Soochow University,Suzhou,Jiangsu 215006,China
    bDepartment of Science and Technology,Jiaozuo Teachers College,Jiaozuo,He'nan 454000,China
    cCollege of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China
  • Received:2014-05-12 Revised:2014-09-28 Published:2015-02-10 Online:2015-02-10
  • Contact: LI Xiaowei; Tel:0512-67586075; Fax:0512-67586056; E-mail:lixiaowei@suda.edu.cn; Research interests:spectroscopic electrochemistry, lithium ion battery materials
  • Supported by:

    ; supported by the Foundation and Frontier Project of the Science and Technology Hall of He'nan Province(No.112300410326), the Foundation and Frontier Project of the Science and Technology Bureau of Jiaozuo(No.208,211)

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摘要：

通过置换反应在金属铝表面制备了表面没有任何保护剂且具有红外增强作用的钴岛膜,用SEM、XRD和表面增强红外光谱对其形貌和性质进行表征。 结果表明,铝片上沉积出的钴呈岛状结构,钴岛膜由二次钴粒子和一次钴粒子通过密堆积的方式构成;首次发现具有这种特殊结构的钴对吸附于其表面的有机分子的红外吸收光谱有较大的增强作用,用此钴岛膜对1 mmol/L的对巯基苯甲酸的红外光谱研究时得到很好的红外增强信号,使得表面增强红外光谱可以用于痕量分析、检测。

 

关键词: 钴岛膜, 对巯基苯甲酸, 表面增强红外吸收光谱

Abstract:

Protective agent free cobalt-island film with infrared enhancement effect was prepared on aluminum metal surface by replacement reaction. Its morphology and characteristics were investigated by using SEM, XRD and IR. Cobalt deposited on aluminum surface emerged as an island structure. Cobalt island films were formed by a large number of secondary cobalt particles and a small amount of cobalt particles through a close packing pattern. Cobalt's unique structure enables a significant enhancement effect on infrared absorption spectrum of organic molecules which are adsorbed on the surface of silver particles. The infrared spectroscopy of 1 mmol/L para-mercaptobenzoic acid has been greatly enhanced on the cobalt-island film. Therefore, the surface-enhanced infrared spectroscopy can be used for trace analysis and testing.

Key words: cobalt-island films, para-mercaptobenzoic acid, surface-enhanced infrared absorption spectroscopy

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