Investigation on Structural Characterization and Magnetic Properties of Fe@fullerene derivatives

• 1、Taiyuan University Of Technology Department of Materials Science and Engineering
• 2、Institute of chemistry Chinese Academy of Science

Abstract：To prepare a new type of magnetic material using for medicine carrier and develop the research for application of fullerene in the fields of biomedicine, a new kind of Fe@fullerene was synthesized under high temperature by chemical vapor deposition (CVD) and the product has been chemically oxidized using concentrated sulfuric(98%) at 90 ℃ under reflux in this paper. The products have been investigated by scanning electron microscopy(SEM), X-ray diffraction, X-ray photo electron spectroscopy, infrared absorption spectroscopy, UV Vis Absorption Spectrum and vibrating sample magnetometer (VSM). The result showed that products are all of diameters less than 100nm; the iron elements included mostly exist in the metallic iron and Fe3O4 state, which makes it possible for Fe@Fllerene to be a kind of paramagnetic body; chemical modification for Fe@fullerenes didn't change their crystal structure and morphology; Fe@fullerenes were coated with hydrophilic functional group -OH, which remarkable enhanced the distribution and stability of the Fe@fullerene. VSM test indicated that the saturation magnetization and coercivity of Fe@ fullerene have decreased to 13.641 emu/g and 545.77 G, in comparison with 17.744emu/g and 553.86G of fullerene before being oxidized by concentrated sulfuric. However, Fe@fullerene still has excellent magnetic property. All of the results provided theoretical foundation for the exploratory development in magnetic carrier materials in the future.

Keywords： Fe@fullerene magnetic property water-solubility