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Reference type: Journal
Authors: Xiong ZH, Zhu L
Article Title: Coupling of the molecularly imprinted polymers on the surface of multi-walled carbon nanotubes and adsorption performance for bisphenol A in aqueous solution.
Publication date: 2013
Journal: Acta Scientiae Circumstantiae
Volume: 33
Issue: (5)
Page numbers: 1264-1271.
Alternative URL: http://www.actasc.cn/hjkxxb/ch/reader/create_pdf.aspx?file_no=20120721001&year_id=2013&quarter_id=5&falg=1

Abstract: A novel molecularly imprinted polymer nanocomposite material named as MWCNTs@ BPA-MIPs was prepared on Multiwalled Carbon Nanotubes (MWCNTs) surface by introducing an unsaturated side chain, óCH óCH2 , on the MWCNTs surface via carboxylation, acylation and amidation and then using bisphenol A (BPA) as template molecules, 4-vinyl pyridine (4-VP) as the functional monomer, and ethylene glycoldimethacrylate (EGDMA) as the cross-linker. The structure and morphology of the obtained MWCNTs@ BPA-MIPs were characterized by scanning electron micrograph (SEM), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetry analysis and a stable imprinted layer was found to be grafted on the surface of MWCNTs. The adsorption properties of MWCNTs@ BPA-MIPs to BPA were demonstrated by equilibrium rebinding experiments and Scatchard analysis. The results revealed that the adsorption capacity of BPA onto the MWCNTs@ BPA-MIPs is up to 123.8 mg g-1. The nanocomposite material prepared in our work possessed better selectivity, higher capacity and faster kinetics for template molecules of BPA than those for the analogues of BPA molecules, such as bisphenol C (BPC) and o-nitrophenol (o-NP).
Template and target information: bisphenol A, BPA
Author keywords: Molecularly imprinted polymers, Multiwalled carbon nanotubes, covalent coupling, bisphenol A, Adsorption performance


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