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A novel magnetic Fe2O3–Fe3O4@SiO2@TiO2–TNS–GR had been synthesized via a solvothermal method. The XRD diffraction patterns and SEM images showed that the magnetite Fe2O3–Fe3O4 core was coated with amorphous SiO2 sheel… Click to show full abstract
A novel magnetic Fe2O3–Fe3O4@SiO2@TiO2–TNS–GR had been synthesized via a solvothermal method. The XRD diffraction patterns and SEM images showed that the magnetite Fe2O3–Fe3O4 core was coated with amorphous SiO2 sheel and anatase sheel successively. TiO2 nanosheets (TNS) and Fe2O3–Fe3O4@SiO2@TiO2 had been loaded on the graphene (GR) sheets successfully. The degradation rate of Fe2O3–Fe3O4@SiO2@TiO2–TNS–GR for rhodamine B (RhB) under visible light irradiation reached 93.34%, which was much higher than that of Fe3O4@SiO2–TNS–GR. The Fe3O4 made the composite to be easily separated from the suspension with an external magnetic field, and [Formula: see text]-Fe2O3 had enhanced the photocatalytic activity of the composite.
Journal Title: Functional Materials Letters
Year Published: 2019
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