LAUSR

Octahedron-shaped ZnFe2O4 was fabricated through a facile process, where the ZnFe2O4 showed yolk-shell-structured. Hollow mesoporous SiO2 spheres were used as template in the process. The SiO2 spheres changed to nanosheets assembled at the surface of the as-formed octahedron-shaped ZnFe2O4. The ZnFe2O4/SiO2 composite exhibits higher surface area (154.03[Formula: see text]m2/g) than those reported. The composite showed excellent catalytic activity in Fenton and photo-Fenton processes, for which the rate constants reached 0.034 and 0.063[Formula: see text][Formula: see text], respectively. And the composite exhibited stable catalytic activity for three cycles. These results demonstrate that the composite shows potential applications in environmental treatment.