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Reference type: Journal
Authors: Pan JM, Guan W, Zhang ZL, Wang X, Li CX, Yan YS
Article Title: Selective Adsorption of Co(II) Ions by Whisker Surface Ion-Imprinted Polymer: Equilibrium and Kinetics Modeling.
Publication date: 2010
Journal: Chinese Journal of Chemistry
Volume: 28
Issue: (12)
Page numbers: 2483-2488.
DOI: 10.1002/cjoc.201190026
Alternative URL: http://onlinelibrary.wiley.com/doi/10.1002/cjoc.201190026/abstract

Abstract: Based on sodium trititanate whisker as support particles, the surface ion-imprinted polymer (S-IIP) was synthesized for the selective adsorption of Co(II) ions from aqueous solution. Characterization of S-IIP was achieved by FTIR spectra and SEM micrographs. Kinetic properties were successfully investigated by the pseudo-first-order model and pseudo-second-order model, and a chemisorption process as the essential adsorption step was also proposed. Equilibrium data were fitted with the Langmuir, Dubinin-Radushkevich and Freundlich isotherm equations, and the maximum adsorption amount of monolayer saturation for S-IIP was 33.75 mg/g at 298 K. Moreover, dimensionless separation factor RL (RL<1.0) indicated a highly favourable adsorption system between Co(II) ions and S-IIP. Selectivity experiments showed that selective adsorption of Co(II) ions for S-IIP was significantly higher than that of non-imprinted polymer (NIP).
Template and target information: Co(II), cobalt ions
Author keywords: surface ion-imprinted polymer, selective adsorption, Co(II) ions, kinetics, equilibrium


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