Figure 9

UV-visible diffuse reflectance spectra (DRS) of PTF and XGTF (x = 0.5, 1, 2%) (a), and the plot of transformed Kubelka-Munk function versus the energy of light (b).

UV-visible diffuse reflectance spectra (DRS) of PTF and XGTF (x = 0.5, 1, 2%) (a), and the plot of transformed Kubelka-Munk function versus the energy of light (b).