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A graphene sheet (GS) synthetised from natural graphite powder was doped in titanium dioxide (TiO2) through the sol–gel method to improve the photocatalytic activity and magnetic γ-Fe2O3/SiO2 particles were added subsequently to improve recycling and reduce the waste of the catalyst. The morphology, microstructure, absorption spectrum and magnetic property of the γ-Fe2O3/SiO2/GSs/TiO2 composites were...
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