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Reference type: Journal
Authors: ÷zkŁtŁk EB, ÷zalp E, ÷zcan AA, Diltemiz SE
Article Title: Selective Separation of Thiocyanate Ion by Ion-Imprinted Polymer.
Publication date: 2009
Journal: Hacettepe Journal of Biology and Chemistry
Volume: 37
Issue: (3)
Page numbers: 207-215.
Alternative URL: http://www.hjbc.hacettepe.edu.tr/article/37/3/207

Abstract: Molecular imprinting is a emerging technology to create recognition sites in a polymeric matrix using a molecular template. The molecularly imprinted polymers (MIPs) are easy to prepare, stable, inexpensive and capable of molecular recognition. This manuscript describes a method for the selective binding behavior of SCN- ions on surface imprinted polymers which were prepared using chitosan succinate-Zn(II) complex. This polymer was prepared in the presence of epichlorohydrin and was imprinted with SCN- ions. After that, the template (SCN- ions) was removed using 1 M KOH solution. Selective cavities for the SCN- ions was obtained in the SCN--imprinted chitosan-succinate beads. The effect of initial concentration of SCN- ions, adsorption time and imprinting efficiency on adsorption selectivity for SCN--imprinted polymer were investigated. The adsorption process was fast and equilibrium was reached at around 30 min. Maximum adsorption capacity was found to be 95 mg g-1. The number of accessible binding sites (Qmax), relative selectivity coefficient (k') and binding ability were also evaluated. The observed adsorption order under competitive conditions was SCN- >F- > Cl-> PO43- in mass basis.
Template and target information: thiocyanate ion, SCN-
Author keywords: Ion-imprinted polymer, Thiocyanate separation, chitosan, solid phase extraction, removal

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