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- W2361548085 abstract "In order to realize selective adsorption and removal of 2,4,6-trichlorophenol(2,4,6-TCP)in seawater,a 2,4,6-trichlorophenol-imprinted amino-functionalized nano-Fe3O4-polymer magnetic composite(nFe3O4 @MIPNH2-polymer)was synthesized via ultrasonic assisted suspension polymerization.The composition,structure,morphology and magnetism of nFe3O4 @ MIPNH2-polymer were characterized by means of Elemental Analysis(EA),X-ray diffraction(XRD),Fourier transform infrared(FTIR)spectroscopy,transmission electron microscopy(TEM)and vibrating sample magnetometer(VSM).The application for its adsorption and removal properties on2,4,6-TCP pollutant from seawater was investigated.The results show that the nFe3O4@MIPNH2-polymer has an average size of around 800 nm,with the saturation magnetization intensity of 32.6emu·g-1.Adsorption isotherm of 2,4,6-TCP onto nFe3O4@MIPNH2-polymer accords with Langmuir model,which demonstrate an excellent adsorption capacity with the maximum adsorption capacity at 105.26mg·g-1,much higher than that of nonemolecular imprinted amino-functionalized nano-Fe3O4-polymer magnetic material(nFe3O4@NH2-polymer,with the maximum adsorption capacity at 76.92 mg·g-1).The isothermal adsorption curve mainly obeys the Langmuir mode.The adsorption thermodynamic studies suggest that the adsorption processes of the 2,4,6-TCP by the nFe3O4@ MIPNH2-polymer are endothermic,entropy favored,and spontaneous in nature,and the adsorption processes reach the equilibrium within 5min and the kinetic data are well fitted to the pseudo-second-order model.The activation energy for the 2,4,6-TCP removal is 78.0kJ·mol-1.There is almost no interference by the coexisting components in seawater for the adsorption of 2,4,6-TCP.The nFe3O4@MIPNH2-polymer can be reused at least 5times after elusion.The 2,4,6-TCP in seawater can be selectively and effectively removed by the nFe3O4@MIPNH2-polymer." @default.
- W2361548085 created "2016-06-24" @default.
- W2361548085 creator A5013999540 @default.
- W2361548085 date "2015-01-01" @default.
- W2361548085 modified "2023-09-26" @default.
- W2361548085 title "Synthesis of molecular printed amino-functionalized nano-Fe_3O_4-polymer magnetic composite and its adsorption properties on 2,4,6-trichlorophenol in seawater" @default.
- W2361548085 hasPublicationYear "2015" @default.
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