Fe2O3/TiO2 photocatalyst of hierarchical structure for H2 production from water under visible light irradiation

- Fe2O3/TiO2 with hierarchical structures from butterfly wings is synthesized.
- Photocatalytic production of H2 from water can be obtained under visible light.
- TiO2 makes the conduction band of the Fe2O3/TiO2 more negative potential.
- The synergistic effect of structures and compositions is very important.