Title: Synthesis and Properties Study of Mercury Ion Imprinted Polymer
Abstract: A new type of Hg2+ imprinted polymer was prepared by a double-imprinting approach for the selective separation of Hg2+ from aqueous solution.In the imprinting process,both mercury ions and surfactant micelles(cetyltrimethylammonium bromide) were used as templates,N-[3-(trimethoxy-silyl)propyl]ethylenediamine as functional monomer,and tetraethoxysilane as cross-linking agent.The mercury ions and surfactant were removed from polymer via acid leaching and ethanol extraction,respectively.The adsorption property and selective recognition ability of the polymer were studied by equilibrium-adsorption method.Results showed that in the presence of Cu2+ or Cd2+,the largest relative selectivity coefficient(k') of the ion-imprinted polymer was over 200,and the polymer could be used repeatedly.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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