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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (19): 2171-2176. 上一篇    下一篇

研究论文

杯[4]芳烃衍生物对Pb2＋的液膜传输动力学

咸春颖* 朱旭栋 刘小毛 邵超英   

  1. (东华大学化学化工与生物工程学院 上海 201620)
  • 投稿日期:2008-11-11 修回日期:2009-06-20 发布日期:2009-07-03
  • 通讯作者: 咸春颖 E-mail:cgte030648@yahoo.com.cn
  • 基金资助:

    上海市教育委员会(ZX200603000015);上海市青年基金(NO2000QN34)

Kinetics of Liquid Membrane Transport of Lead Ion by Calix[4]arene Derivatives

Xian, Chunying*      Zhu, Xudong          Liu, Xiaomao           Shao, Chaoying   

  1. (College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620)
  • Received:2008-11-11 Revised:2009-06-20 Published:2009-07-03

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以3类含不同基团的杯[4]芳烃衍生物作为离子载体在H2O-CHCl3-H2O液膜传输体系下分别对Pb2＋进行液膜传输实验. 简要讨论了以杯[4]芳烃衍生物作为离子载体对Pb2＋液膜传输的动力学机理. 重点研究了不同载体种类, 载体浓度, 搅拌速度, 传输时间等因素对Pb2＋传输的影响. 实验结果表明: 以含Br原子的杯[4]芳烃衍生物和含S原子的杯[4]芳烃衍生物作为离子载体对Pb2＋有明显的传输效果. 可以用本文的动力学模型来描述整个传输体系的动力学特性.

关键词: 杯[4]芳烃衍生物, 液膜传输, 铅离子, 传输动力学

Facilitated transport of lead ion across a bulk liquid membrane by three calix[4]arene derivatives, as ion carriers, dissolved in CHCl3 has been investigated. Transport kinetics of lead ion using calix[4]arene derivatives carriers in liquid membrane have been briefly discussed. The influences of fundamental parameters affecting the transport of lead ion including ion carrier concentration in the membrane phase, stirring speed of membrane, time of transport have been studied. Transport of lead ion occured almost quantitatively while using bromo-calix[4]arene or thioether-calix[4]arene as ion carriers. The kinetic model used in this article can describe the transport kinetic mechanism of lead ion.

Key words: calix[4]arene derivative, liquid membrane transport, lead ion, kinetics of transport