物理化学学报 >> 2011, Vol. 27 >> Issue (06): 1451-1456.doi: 10.3866/PKU.WHXB20110628

电化学和新能源 上一篇    下一篇

金属螯合物印迹聚邻苯二胺膜的电化学合成及表征

汪莲艳1, 陆枫2, 吴福全3, 顾仁敖2, 姚建林2, 张海禄1, 邓宗武1   

  1. 1. 中国科学院苏州纳米技术与纳米仿生研究所, 江苏 苏州 215123;
    2. 苏州大学材料与化学化工学部, 江苏 苏州 215123;
    3. 苏州市环境监测中心站, 江苏 苏州 215004
  • 收稿日期:2011-01-14 修回日期:2011-04-12 发布日期:2011-05-31
  • 通讯作者: 邓宗武 E-mail:zwdeng2007@sinano.ac.cn
  • 基金资助:

    国家自然科学基金(21073226)及苏州市科技计划项目(SS0852)资助

Electrosynthesis and Characterization of Metal Chelate Imprinted Poly-o-Phenylenediamine Films

WANG Lian-Yan1, LU Feng2, WU Fu-Quan3, GU Ren-Ao2, YAO Jian-Lin2, ZHANG Hai-Lu1, DENG Zong-Wu1   

  1. 1. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu Province, P. R. China;
    2. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu Province, P. R. China;
    3. Suzhou Environmental Monitor Centre, Suzhou 215004, Jiangsu Province, P. R. China
  • Received:2011-01-14 Revised:2011-04-12 Published:2011-05-31
  • Contact: DENG Zong-Wu E-mail:zwdeng2007@sinano.ac.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21073226) and Science and Technology Planning Project of Suzhou, China (SS0852).

摘要:

以邻苯二胺(o-PD)为功能单体, 乙二胺四乙酸铜离子螯合物(Cu(II)-EDTA)为模板分子, 利用循环伏安法(CV)合成了Cu(II)-EDTA分子印迹聚合物(MIPs). 通过紫外-可见(UV-Vis)光谱、X射线光电子能谱(XPS)、差分脉冲伏安法(DPV)、石英晶体微天平(QCM)等手段对合成的聚合物进行了表征. UV-Vis光谱分析表明当溶液的pH≥5.0时有利于邻苯二胺电聚合形成聚合度较高的聚合物; XPS结果证明Cu(II)-EDTA螯合物被成功地包覆在聚合物膜中, 且推断出模板分子和聚合物之间可能主要靠氢键相互作用; DPV实验结果证明模板分子能够被有效洗脱; QCM的测试结果表明此方法合成的Cu(II)-EDTA印迹聚合物膜对Cu(II)-EDTA具有良好的响应度.

关键词: 邻苯二胺, 螯合物, 分子印迹聚合物, 循环伏安法, 石英晶体微天平

Abstract:

Novel molecularly imprinted polymers (MIPs) were synthesized by the electrochemical polymerization of o-phenylenediamine (o-PD) using cyclic voltammetry in the presence of Cu(II)- ethylenediaminetetraacetate chelate (Cu(II)-EDTA), which acted as a template. The resultant polymers were characterized by UV-Vis spectroscopy, X-ray photoelectron spectroscopy (XPS), differential pulse voltammetry (DPV), and quartz crystal microbalance (QCM). UV-Vis spectral analysis indicated that a higher degree poly-o-phenylenediamine (PoPD) was obtained at pH≥5.0. XPS analysis clearly showed the successful embedding of a Cu(II)-EDTA chelate in the PoPD film and, therefore, hydrogen bonding was a major interaction between the template and the PoPD film. DPV analysis confirmed the successful removal of the template from the PoPD film. The QCM test showed that the Cu(II)-EDTA imprinted PoPD film had good Cu(II)-EDTA chelate sensitivity.

Key words: o-Phenylenediamine, Chelate, Molecularly imprinted polymer, Cyclic voltammetry, Quartz crystal microbalance

MSC2000: 

  • O641