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Reference type: Journal
Authors: Zhang ZG, Du RK, Li YB, Gao BJ, An FQ, Huang XW, Zhang YQ, Xu Y
Article Title: Binding and recognizing properties of ionic imprinted polymer towards Sc(III).
Publication date: 2014
Journal: Journal of Functional Materials
Volume: 45
Issue: (S1)
Page numbers: 87-91.
Alternative URL: http://caod.oriprobe.com/articles/42009164/Binding_and_recognizing_properties_of_ionic_imprin.htm

Abstract: Polyethyleneimine (PEI) was grafted onto the surface of silica gel particles, and functional grafting material PEI/SiO2 was prepared successfully. Then the ionic imprinted polyethyleneimine on the surface of silica gel was prepared using Sc3+ as template ions and ethylene glycol diglycidyl ether (EGDE) as crosslinking agent and ionic imprinted material IIP-PEI/SiO2was obtained. The binding and recognizing properties of IIP-PEI/SiO2 for Sc3+ are 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 Sc3+. The binding capacity could reach to 1.08 mg/g, and binding isotherm data greatly obey the Freundlich model. The relative selectivity coefficient relative to Al 3+ and Fe3+ was 4.21 and 5.73, respectively. The Sc3+in simulative and actual acid dipping solution of red mud was recovered effectively. Besides, the IIP-PEI/SiO2can be regenerated easily and IIP-PEI/SiO2possesses better reusability.
Template and target information: Scandium ion, Sc(III)
Author keywords: surface imprint, polyethyleneimine, Sc(III), red mud, silica gel

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