Journal
FUNCTIONAL MATERIALS LETTERS
Volume 12, Issue 2, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1793604719500061
Keywords
Fe2O3-Fe3O4@SiO2@TiO2-TNS-GR; magnetic core-shell; photocatalytic property; rhodamine B; visible light
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Funding
- National Twelfth Five-year Science and Technology Support Program [2012BAB10B00]
- China Scholarship Council (CSC)
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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 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 alpha-Fe2O3 had enhanced the photocatalytic activity of the composite.
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