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Reference type: Journal
Authors: Surikumaran H, Mohamad S, Sarih N
Article Title: Molecular Imprinted Polymer of Methacrylic Acid Functionalised β-Cyclodextrin for Selective Removal of 2,4-Dichlorophenol.
Publication date: 2014
Journal: International Journal of Molecular Sciences
Volume: 15
Issue: (4)
Page numbers: 6111-6136.
DOI: 10.3390/ijms15046111
Alternative URL: http://www.mdpi.com/1422-0067/15/4/6111

Abstract: This work describes methacrylic acid functionalized β-cyclodextrin (MAA-βCD) as a novel functional monomer in the preparation of molecular imprinted polymer (MIP MAA-βCD) for the selective removal of 2,4-dichlorophenol (2,4-DCP). The polymer was characterized using Fourier Transform Infrared (FTIR) spectroscopy, Brunauer-Emmett-Teller (BET) and Field Emission Scanning Electron Microscopy (FESEM) techniques. The influence of parameters such as solution pH, contact time, temperature and initial concentrations towards removal of 2,4-DCP using MIP MAA-βCD have been evaluated. The imprinted material shows fast kinetics and the optimum pH for removal of 2,4-DCP is pH 7. Compared with the corresponding non-imprinted polymer (NIP MAA-βCD), the MIP MAA-βCD exhibited higher adsorption capacity and outstanding selectivity towards 2,4-DCP. Freundlich isotherm best fitted the adsorption equilibrium data of MIP MAA-βCD and the kinetics followed a pseudo-second-order model. The calculated thermodynamic parameters showed that adsorption of 2,4-DCP was spontaneous and exothermic under the examined conditions.
Template and target information: 2,4-dichlorophenol, 2,4-DCP
Author keywords: molecular imprinted polymer, 2,4-Dichlorophenol, β-cyclodextrin, removal, kinetics, isotherm

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