NDLI: Enhanced and selective adsorption of heavy metal ions on ion-imprinted simultaneous interpenetrating network hydrogels

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Preparation and characterization of novel p-acryloyloxybenzaldehyde copolymers bearing pyrene or fluorescein moieties. Interaction of fluorophore with some quenchers and silver nanoparticles

Volume 16, 2013

Enhanced and selective adsorption of heavy metal ions on ion-imprinted simultaneous interpenetrating network hydrogels

Content Provider	Taylor & Francis Online
Author	Wang, Jingjing Liu, Fang
Abstract	Ion recognition-based separation techniques have received much attention because of the high selectivity for target ions. In this study, a novel Cu(II) ion-imprinted hydrogel [Cu(II)–IIH] with interpenetrating network structure has been prepared to remove Cu(II) ions with high selectivity. The Cu(II)–IIH was prepared by free radical/cationic hybrid photopolymerization of acrylamide (AAm) and triethylene glycol divinyl ether (DVE-3) using Cu(II) ions as template. The ability of the Cu(II)–IIH to adsorb and remove Cu(II) ions from aqueous solutions was assessed using a batch adsorption technique. The maximum adsorption capacity was observed at pH 5.0, and the adsorption process could be well described by the Freundlich isotherm. The adsorption equilibrium was achieved within 16 min, and the kinetics of adsorption followed a pseudo-second-order rate equation. Selective adsorption study indicated that ion imprinting resulted in stronger affinity of the Cu(II)–IIH toward Cu(II) ions than other competitor metal ions compared with the non-imprinted hydrogel. The prepared Cu(II)–IIH was repeatedly used and regenerated for five times without a significant decrease in metal binding affinity.
Starting Page	19
Ending Page	25
Page Count	7
File Format	PDF HTM / HTML
ISSN	15685551
DOI	10.1080/15685551.2013.771314
Journal	Designed Monomers and Polymers
Volume Number	17
Issue Number	1
Language	English
Publisher	Taylor & Francis
Publisher Date	2013-10-10
Access Restriction	Open
Subject Keyword	Hydrogels Interpenetrating polymer network (IPN) Ion-imprinted Hybrid photopolymerization Selective adsorption
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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