MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: An FQ, Gao BJ, Li G
Article Title: Studies on preparation of ion-imprinted polyethyleneimine on silica gel particles and binding properties for metal ions.
Publication date: 2007
Journal: Acta Polymerica Sinica
Issue: (4)
Page numbers: 366-373.
Alternative URL: http://www.gfzxb.org/EN/abstract/abstract10422.shtml

Abstract: Polyethyleneimine (PEI)was grafted onto the surface of silica gel particles via the coupling effect of gamma-chloropropyltrimethoxysilane (CP), and the novel composite material PEI/SiO2 with chemical bond linkage was prepared. Then the molecular imprinted polyethyleneimine on the surface of silica gel was prepared using Cu2+ as template ions and epichlorohydrin (ECH) as crosslinking agent via coordination bond effects, and composite ionic imprinted material IIP-PEI/SiO2 was obtained. Both static and dynamic methods (i.e batch and column methods) were adopted to study the binding proper-ties of IIP-PEI/SiO2 for Cu2+, and the effects of main imprinting conditions, the concentration of Cu2+ and the used amount of epichlorohydrin, on the binding properties of IIP-PEI/SiO2 were examined. The experiment results show that the ionic imprinted material IIP-PEI/SiO2 possesses strong recognizing ability for Cu2+, and the ability is displayed in two aspects: ( 1) IIP-PEI/SiO2 has high selectivity for Cu2+, in relation to Cd2+, the selectivity coefficient of IIP-PEI/SIO2 for Cu2+ is 83.79, and in relation to Zn2+ the selectivity coefficient of IIP-PEI/SiO2 for Cu2+ is 80.21; (2) The binding amount of Cu2+ on IIP-PEI/SiO2 is much greater than that on PEI/SiO2, which was not ion-imprinted, and the former is two times greater than the latter. Besides, the ionic imprinted material IIP-PEI/SiO2 has excellent elution property, and it is easy to be regenerated and reused
Template and target information: copper ion, Cu(II)
Author keywords: polyethyleneimine, silica gel, ion imprint, copper ion-imprinted material, surface imprint

  Live and Let MIP spoof movie poster customisable greetings card  Chemistry peptide mug    mug featuring the element Copper

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner