Selective transport of cesium ion in polymeric CTA membrane containing calixcrown ethers

Jong Seung Kim, Sun Kyu Kim, Jong Won Ko, Eun Tae Kim, Sang Hyok Yu, Moon Hwan Cho, Seon Gil Kwon, Eil Hee Lee

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


A series of calixcrown ethers for which the cavity size of the crown ring is varied from crown-6 to crown-7 to crown-8 were examined for the transport abilities toward alkali metal ions. These ligands were incorporated into supported liquid membranes (SLMs) and into polymer inclusion membranes (PIMs) composed of cellulose triacetate (CTA) as a support and 2-nitrophenyl octyl ether (NPOE) and tris(2-butoxyethyl) phosphate (TBEP) as a plasticizer. In both membrane systems, calixcrown-6 showed the best selectivity toward a cesium ion over other alkali metal ions. The polymeric CTA membrane showed more rapid transport rate as well as higher durability than did the SLMs.

Original languageEnglish
Pages (from-to)1143-1148
Number of pages6
Issue number6
Publication statusPublished - 2000 Sept 5
Externally publishedYes

Bibliographical note

Funding Information:
The authors wish to acknowledge the financial support of the Korea Research Foundation made in the program year of 1998 (Grant No. 1998-015-D00161).


  • Calixcrown ether
  • Membrane
  • Polymer inclusion membrane
  • Transport experiment

ASJC Scopus subject areas

  • Analytical Chemistry


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