An easy synthesis of nanostructured magnetite-loaded functionalized carbon spheres and cobalt ferrite

摘要

An easy method in a solvothermal system has been developed to synthesize nanostructured magnetite (Fe_3O_4)-loaded functionalized carbon spheres (CSs) and cobalt ferrite (CoFe_2O_4). Surface-tunable CSs loaded with iron oxide (Fe_3O_4) nanoparticles were prepared using an acetylferrocene Schiff base (OPF), whereas spinel cobalt ferrite (CoFe_2O_4) was synthesized via metal complexes of a ferrocenyl Schiff base with phenol moiety (Co-OPF). The formed composite powder was investigated using X-ray powder diffraction, Raman spectrometry, Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and vibrating sample magne-tometry. It was found that most of the iron oxide nanoparticles were evenly distributed upon the surface of the CSs. Furthermore, the surface of the iron oxide-loaded CSs has large numbers of functional groups. Good saturation magnetization was achieved for the formed magnetic nanoparticles.