Journal
BIOSENSORS & BIOELECTRONICS
Volume 25, Issue 2, Pages 306-312Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2009.07.001
Keywords
Molecularly imprinted polymer; 2,4-Dichlorophenol; RAFT polymerization; Density functional theory
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Funding
- National Natural Science Foundation of China [50878061]
- State Key Lab of Urban Water Resource and Environment [ESK200801]
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Molecularly imprinted polymer (MIP) for selective recognition and removal of chlorophenols from contaminated water was prepared by reversible addition-fragmentation chain transfer(RAFT) polymerization using RAFT agent functionalized silica gel as the chain transfer agent. The prepared MIP nano-film hybrid silica gel (silica-MIP) was characterized using Fourier transform infrared spectrometer (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and BET adsorption isotherm analysis. The proper adsorption and selective recognition ability of the silica-MIP were studied by an equilibrium-adsorption method. The resulting silica-MIP showed outstanding affinity towards 2,4-dichlorophenol (2,4-DCP) in aqueous solution. The silica-MIP bind the original template 2,4-DCP with an appreciable selectivity over structurally related compounds, and the molecular recognition of 2,4-DCP was analyzed in detail. (C) 2009 Elsevier B.V. All rights reserved.
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