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Synthesis of supramolecular polymers with calix[4]arene and β-cyclodextrin and their application in heavy metal ion
Jian-Jian Bian1, Shi-Jin Tang1, Jiao Miao1
1Faculty of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650500 China myteng@ynnu.edu.cn 425931826@qq.com +86 871 65941088 +86 871 65941087.
Abstract:
Two categories of supramolecular polymer monomers were produced by introducing the ureidopyrimidone quadruple-hydrogen bonding assemblies on the calix[4]arene and the β-cyclodextrin host units. The adsorption capacity of these supramolecular polymers for different metal ions was investigated by static adsorption. The results showed that at pH = 6 and when the adsorption equilibrium was reached, the supramolecular polymer with calixarene and β-cyclodextrin as the main body adsorbed up to 99% of Pb2+ and Cd2+, respectively. Also, the supramolecular polymer connected with six carbon chains on β-cyclodextrin had better recognition of Cd2+ and Pb2+, and the highest adsorption rate reached 99%. Industrial adsorbent materials from such supramolecular polymers will provide more options for water pollution control, especially for heavy metal ions.
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