721824.fig.001a
(a)
721824.fig.001b
(b)
Figure 1: (A) Diffuse reflectance spectra of modified and pure TiO2, (B) plot of transformed Kubelka-Munk function versus the energy of the light absorbed; (a) TiO2, (b) TiO2-2.98%C, (c) TiO2-0.42%C, (d) TiO2-0.03%C.