Abstract:
The magnetic Fe3O4 nanoparticles were successfully prepared through hydrothermal method, then TiO2 was coated as the shell of the magnetic nanoparticles. Finally, the core-shell structural TiO2/Fe3O4 nanoparticles were adhered on the layer of RGO surface. The morphological feature, magnetism and elemental composition of the RGO/TiO2/Fe3O4 photocatalyst were characterized with SEM,TEM, N2 adsorption-desorption, XRD, VSM and XPS analysis. The photo-catalysis of the prepared structural nanoparticles in degradation of methyl orange was investigated. The results indicated that TiO2 were dispersed uniformly on the Fe3O4 core nanoparticle surface. In addition, the saturation magnetization of the RGO/TiO2/Fe3O4 nanoparticles was 19.0 emu/g, and the photocatalytic decolorization ratio for methyl orange was up to 91% after 90 min of UV irradiation.
