Figure 6
Diffuse reflection spectra of pure TiO2, Sn-TiO2, La-TiO2 and Sn/La-TiO2 annealed at 450 °C (a); plots of (αhv)1/2 versus the photon energy (hv) (b).
Figure 6 | Scientific Reports
Diffuse reflection spectra of pure TiO2, Sn-TiO2, La-TiO2 and Sn/La-TiO2 annealed at 450 °C (a); plots of (αhv)1/2 versus the photon energy (hv) (b).
