Preparation of monodisperse cross-linked poly(glycidyl methacrylate)@Fe3O4@diazoresin magnetic microspheres with dye removal property
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This article presented a versatile and robust adsorbent with both magnetic property and high adsorption capacity on the basis of poly(glycidyl methacrylate)@Fe3O4@diazoresin (PGMA@Fe3O4@DR) magnetic microspheres. The morphology, composition and magnetic properties of the magnetic microspheres were characterized by scanning electron microscope, Fourier transform infrared spectroscopy, thermogravimetric analysis and the hysteresis loop measurements, respectively. The obtained microspheres were applied in the adsorption of dye in the wastewater. The effects of adsorption time, initial dye concentration, pH value and other conditions were explored. Results show that the magnetic microspheres were able to remove more than 98.5% of dyes in water under optimized conditions. The use of diazoresin not only protects the Fe3O4 particles from being corroded at different pH values, but also greatly improves the adsorption capacity.
This work is financially supported by the National Natural Science Foundation of China (21675091, 21574072, 21375069), the Natural Science Foundation for Distinguished Young Scientists of Shandong Province (JQ201403), the Taishan Young Scholar Program of Shandong Province (tsqn20161027), the Key Research and Development Project of Shandong Province (2016GGX102028, 2016GGX102039, 2017GGX20111), the Natural Science Foundation of Shandong Province (ZR2017BEE010), the Project of Shandong Province Higher Educational Science and Technology Program (J15LC20), the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry (20111568), the People’s Livelihood Science and Technology Project of Qingdao (166257nsh, 173378nsh), the Innovation Leader Project of Qingdao (168325zhc), the China Postdoctoral Science Foundation (2017M612203), the Postdoctoral Scientific Research Foundation of Qingdao and the First Class Discipline Project of Shandong Province.
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