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ABSTRACT
Fe3O4@C nanospheres have potential applications in the field of magnetic separation, magnetic hyperthermia, magnetic targeting and magnetic resonance imaging (MRI). The carbon layers formed around Fe3O4 nanopaticles determined the adsorption properties of this material. In this study, Fe3O4@C was prepared by a simple one-pot solvothermal method, in which different amount of water was added to investigate the influences of water on the properties of Fe3O4@C nanospheres. The resulted samples were characterized by techniques of TEM, FT-IR, UV–Vis and BET, and found that the thickness of carbon layer, the intensity of surface carboxyl group and the adsorption characters were significantly changed by introducing additional water in autoclave.
Funding
This work is financially supported by the National Natural Science Foundation of China (21574072, 21675091), 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 (ZR2017BB014), the Project of Shandong Province Higher Educational Science and Technology Program (J15LC20), the People's Livelihood Science and Technology Project of Qingdao (166257nsh, 173378nsh), the Innovation Leader Project of Qingdao (168325zhc), the Postdoctoral Scientific Research Foundation of Qingdao, and the First Class Discipline Project of Shandong Province.