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《Technology of Water Treatment》 2013-10
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PREPARATION OF MOLECULARLY IMPRINTED MICROGEL AND ITS ADSORPTION PROPERTIES OF 2,4-DICHLOROPHENOL IN WATER SAMPLES

Zhang Jin;Li Xiaoping;Wang Chaoying;Luo Rongqin;Li Shijie;State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry, Chinese Academy of Sciences;School of Chemistry and Life Science,Guizhou Normal College;  
A series of molecularly imprinted polymers microgel(MIPM) for 2,4-dichlorophenol(2,4-DCP) were synthesized with 2,4-DCP as template molecule,methacrylamide(MAM) as functional monomer and trimethylolpropane trimethacrylate(TRIM) as crosslinking agent.The intermolecular interaction between MAM and 2,4-DCP was confirmed by ultraviolet spectroscopy(UV) and the surface morphology of MIPM was characterized by scanning electron microscope(SEM).And its adsorption property was evaluated by batch adsorption experiments.The obtained results indicated that the imprinted factor,the maximum adsorbing capacity and adsorption equilibrium time of MIPM towards 2,4-DCP was about 1.93,159.61 mg/g and 150 min,respectively,when toluene was used as the porogenic solvent and the molar ratio of the functional monomer to the template was 4:1.In addition,the MIPM was successfully used as a stationary phase for solid-phase extraction(SPE) to enrich 2,4-DCP from several environmental water samples and the recoveries were in the range of 96.30%~108.66%.
【Fund】: 贵州省科学技术基金(J20112078);; 贵州省特色重点学科建设基金(2012442);; 贵州师范学院课题(12ZD001)
【CateGory Index】: X703
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