In summary, the uniform, nano-sized FeTiO3/TiO2 composite has
been synthesized by a facile hydrothermal method. The FTC exhibit
remarkable photocatalytic activity for the reduction of CO2 under
both visible and UV–Vis light irradiation with a maximum CH3OH
yield of about 0.46 μmol g−1 h−1 that is three times higher than
that from bare TiO2 or Degussa P25. The unique band structure and
the junction effect of two semiconductors as well as the narrow
band gap of FeTiO3 are responsible for its high efficiency of selective
production of CH3OH