Facile synthesis, structure and visible light photocatalytic activity of recyclable ZnFe2O4/TiO2

- ZnFe2O4/TiO2 heterojunction was facilely synthesized by a solution combustion method.
- Sponge-like ZnFe2O4/TiO2 shows excellent photocatalytic activity and stability.
- The structure-to-activity relationship and photocatalytic mechanism were proposed.