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Reference type: Journal
Authors: Monier M, Youssef I, El-Mekabaty A
Article Title: Preparation of functionalized ion-imprinted phenolic polymer for efficient removal of copper ions.
Publication date: 2020
Journal: Polymer International
Volume: 69
Issue: (1)
Page numbers: 31-40.
DOI: 10.1002/pi.5915

Abstract: In this work, an ion-imprinted polymeric material based on functionalized phenolic resin was developed for the efficient selective removal of Cu2+ ions from aqueous solution. p-Aminophenol-isatin Schiff base ligand (HPIS) was first synthesized and combined with Cu2+ ions to prepare the corresponding complex [Cu(PIS)2]. The Schiff base ligand along with its copper complex was fully investigated and characterized before anchoring in a base-catalyzed condensation copolymerization with formaldehyde and resorcinol. The Cu2+ ions were removed from the obtained resin construction and the resulting Cu2+ ion-imprinted material (Cu-PIS) was employed for the selective extraction of Cu2+ ions under different pH values, initial concentrations and contact time conditions. The optimum pH for the removal process was chosen as 6 and the maximum adsorption capacity was 187 ± 1 mg g-1. Also, the kinetics showed a better fit with the pseudo-second-order equations. The selectivity of the prepared Cu-PIS was also evaluated in a multi-ionic species containing Ni2+, Cd2+, Pb2+, Co2+ besides Cu2+ ions and the determined parameters confirmed a superior recognition capability toward the imprinted Cu2+ ions. © 2019 Society of Chemical Industry
Template and target information: copper ion, Cu(II)
Author keywords: resorcinol, isatin, copper(II) ions, Ion-imprinting


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