高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (8): 1315.

• 研究论文 • 上一篇    下一篇

杯[4]冠醚对过渡金属离子的液膜传输行为

马会民, 王志华, 郑企雨, 温利权, 马泉莉, 苏美红, 黄志镗   

  1. 中国科学院化学研究所分子科学中心, 北京 100080
  • 收稿日期:2000-08-02 出版日期:2001-08-24 发布日期:2001-08-24
  • 通讯作者: 马会民(1961年出生),男,博士,研究员,从事光学分析试剂与生化分析研究.
  • 基金资助:

    国家自然科学基金(批准号:29875032);中国科学院院长基金等资助

Liquid Membrane Transport of Transition MetaLIons with Calix Crowns

MA Hui-Min, WANG Zhi-Hua, ZHENG Qi-Yu, WEN Li-Quan-MA Quan-Li, SU Mei-Hong, HUANG Zhi-Tang   

  1. Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2000-08-02 Online:2001-08-24 Published:2001-08-24

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被引次数

21

摘要： 藉杯芳烃衍生物的识别作用可以实现对金属离子的选择性液膜传输.本文研究了4种新型杯[4]冠醚对5种过渡金属离子(Cu2+,Fe3+,Co2+,Ni2+,Zn2+)的液膜传输行为.发现其中酯型杯[4]冠醚(Ⅲ)对Cu2+有优良的传输效能,并详细考察了各种因素(包括源相和受相酸度、离子载体的浓度、时间及温度等)的影响.指出载体对Cu2+的传输为H+交换机理,并对该过程进行了初步解释.

关键词: 液膜传输, 杯[4]冠醚, 过渡金属离子, Cu2+

Abstract: Selective transport of metaLIons across liquid membrane can be achieved by using calixarene derivatives with recognition groups. Four new calix[4] crowns, in this work, were examined for the transport of transition metaLIons such as Cu 2+ , Fe 3+ , Co 2+ , Ni 2+ and Zn 2+ . It was found that one of these calix crowns, 25,27-dihydroxy-26,28-(3',6'-dioxa-2',7'-dioxooctylene)dioxycalixarene (Ⅲ), transported efficiently Cu 2+ . Various factors affecting the transport of Cu 2+ with Ⅲ were investigateDIn detail, including source phase and receiving phase's acidities, carrier concentration, time, temperature, etc .. The mechanism of H+ exchange was suggested for the present system H2O-(liquid membrane)-H2O, and the transport process of Cu 2+ was briefly discussed.

Key words: Liquid membrane transport, Calix crowns, Transition metaLIons, Cu 2+

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