Enhanced photochemical activity of α-Fe2O3 films supported on SrTiO3 substrates under visible light illumination

The visible light photochemical reactivity of a 50 nm thick α-Fe2O3(0001) (hematite) film on a SrTiO3(111) substrate is compared to the reactivities of bulk hematite and the same film supported by α-Al2O3(0001). The hematite film supported by SrTiO3(111) is far more reactive then the other two cases.