title: Molecular imprinted polymer of methacrylic acid functionalised β-cyclodextrin for selective removal of 2,4-dichlorophenol.
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.
authors.affiliation: Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia. hemavathy8605@gmail.com.
authors.forename: Hemavathy
authors.initials: H
authors.lastname: Surikumaran
authors.affiliation: Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia. sharifahm@um.edu.my.
authors.forename: Sharifah
authors.initials: S
authors.lastname: Mohamad
authors.affiliation: Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia. nmsarih@um.edu.my.
authors.forename: Norazilawati Muhamad
authors.initials: NM
authors.lastname: Sarih
mesh_terms: D000327:Adsorption; D002733:Chlorophenols / Q000737:chemistry* / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D054802:Molecular Imprinting; D010316:Particle Size; D011109:Polymethacrylic Acids / Q000737:chemistry*; D013696:Temperature; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D002733:Chlorophenols; D011109:Polymethacrylic Acids; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; C030613:polymethacrylic acid; C031215:betadex; C004762:2,4-dichlorophenol
references.citation: Int J Mol Sci. 2011;12(9):6329-45
references.pmid: 22016662
references.citation: J Hazard Mater. 2009 Sep 15;168(2-3):1111-7
references.pmid: 19329248
references.citation: Chemosphere. 2000 Aug;41(3):447-52
references.pmid: 11057607
references.citation: Environ Pollut. 2009 Jun;157(6):1879-85
references.pmid: 19233528
references.citation: J Hazard Mater. 2006 Jan 16;128(1):44-52
references.pmid: 16126338
references.citation: Biosens Bioelectron. 2009 Mar 15;24(7):2305-11
references.pmid: 19162462
references.citation: J Hazard Mater. 2006 Sep 1;137(1):410-7
references.pmid: 16574320
references.citation: Water Res. 2002 Feb;36(4):1034-42
references.pmid: 11848342
references.citation: J Hazard Mater. 2006 Sep 1;137(1):498-508
references.pmid: 16621252
references.citation: Environ Sci Technol. 2001 May 1;35(9):1771-8
references.pmid: 11355191
references.citation: Int J Mol Sci. 2008 Dec;9(12):2333-56
references.pmid: 19330079
references.citation: Comp Biochem Physiol C Toxicol Pharmacol. 2003 Aug;135(4):435-41
references.pmid: 12965188
references.citation: Int J Pharm. 2002 Jan 31;232(1-2):175-81
references.pmid: 11790501
references.citation: Bioresour Technol. 2008 Sep;99(13):5786-92
references.pmid: 18023577
references.citation: Int J Mol Sci. 2009 Jan;10(1):354-65
references.pmid: 19333450
references.citation: J Hazard Mater. 2009 Aug 15;167(1-3):282-8
references.pmid: 19233552
references.citation: Ecotoxicol Environ Saf. 2012 Oct;84:39-45
references.pmid: 22795888
references.citation: J Hazard Mater. 2006 Nov 2;138(1):116-24
references.pmid: 16806675
references.citation: Chem Commun (Camb). 2002 Jan 21;(2):164-5
references.pmid: 12120352
references.citation: J Colloid Interface Sci. 2007 Sep 1;313(1):80-5
references.pmid: 17509602
references.citation: Anal Chim Acta. 2012 Apr 6;721:68-78
references.pmid: 22405302
references.citation: J Chromatogr A. 2011 Sep 16;1218(37):6271-7
references.pmid: 21807367
references.citation: J Colloid Interface Sci. 2007 Mar 1;307(1):64-70
references.pmid: 17141797
references.citation: Adv Colloid Interface Sci. 2008 Nov 4;143(1-2):48-67
references.pmid: 18786665
references.citation: Int J Mol Sci. 2013 Mar 14;14(3):5952-65
references.pmid: 23493059
references.citation: Bioresour Technol. 2007 Mar;98(4):866-73
references.pmid: 16678406
references.citation: J Environ Sci (China). 2007;19(6):674-7
references.pmid: 17969639
references.citation: Environ Pollut. 2002;118(3):315-9
references.pmid: 12009128
references.citation: Anal Chem. 2009 Mar 15;81(6):2098-105
references.pmid: 19236048
references.citation: Water Res. 2004 Jan;38(2):267-76
references.pmid: 14675638
references.citation: Biosens Bioelectron. 2009 Oct 15;25(2):306-12
references.pmid: 19647424
references.citation: Waste Manag. 2002;22(5):543-8
references.pmid: 12092764
references.citation: Int J Mol Sci. 2010 Sep 20;11(9):3459-71
references.pmid: 20957106
references.citation: Environ Sci Technol. 2004 Feb 15;38(4):1195-200
references.pmid: 14998037
references.citation: Chemosphere. 2011 Oct;85(5):832-8
references.pmid: 21764103