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Reference type: Journal
Authors: An FQ, Li YB, Gao BJ, Huang XW, Zhang YQ, Xu Y
Article Title: Recognizing properties of ionic imprinted polymer towards Fe(II) in rare earth.
Publication date: 2013
Journal: Journal of Functional Materials
Volume: 44
Issue: (9)
Page numbers: 1272-1276.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTOTAL-GNCL201309015.htm

Abstract: Polyethyleneimine(PEI) was grafted onto the surface of silica gel particles through the coupling effect of γ-chloropropyl trimethoxysilane(CP),and PEI/SiO2 was prepared.Then the ionic imprinted polyethyleneimine on the surface of silica gel was prepared using Fe2+ as template ions and ethylene glycol diglycidyl ether(EGDE) as crosslinking agent and ionic imprinted material IIP-PEI/SiO2 was obtained.The binding properties of IIP-PEI/SiO2 for Fe2+ were researched using batch and methods.The experiment results show that the ionic imprinted material IIP-PEI/SiO2 possesses strong binding affinity and specific recognition selectivity property for Fe2+.The binding capacity could reach to 1.98mmol/g,and binding isotherm data greatly obey the Freundlich model.The relative selectivity coefficients relative to Ce3+ and Pr3+ are 25.57 and 20.63,respectively.Besides,the IIP-PEI/SiO2 can be regenerated easily and IIP-PEI/SiO2 possesses better reusability.
Author keywords: surface imprint, polyethyleneimine, silica gel, Fe(II), Rare earth

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