A novel SnS2–MgFe2O4/reduced graphene oxide flower-like photocatalyst: Solvothermal synthesis, characterization and improved visible-light photocatalytic activity

• The SnS2–MgFe2O4/rGO flower-like photocatalyst is prepared via solvothermal method.
• The SnS2–MgFe2O4/rGO photocatalyst has a strong visible light absorption.
• The magnetic photocatalyst exhibits excellent photocatalytic activity.

Flower-like SnS2 decorated with MgFe2O4 nanoparticles and reduced graphene oxide (rGO) nanosheets were successfully synthesized by a facile solvothermal method. The morphological and crystal structure results confirmed that MgFe2O4 nanospheres were uniformly anchored on the surface of SnS2 flower-like structure with the decoration of rGO nanosheets. The UV–vis diffuse reflectance spectra indicated that the SnS2–MgFe2O4/rGO photocatalyst had a strong visible light absorption. The sample exhibited the highest photocatalytic activity for the degradation of methylene blue under visible light irradiation. The mechanism of improved photocatalytic activity was finally proposed.

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