Figure 2.
Photochemical characterization of nanoparticles. (a) UV-visible spectroscopic measurements and subsequent Kubelka–Munk reflection plots for undoped and Fe doped TiO2 nanoparticles. (b) The band gap energy tuning by Fe doping in the TiO2 matrix. The band gap energy decreases with increasing concentration of Fe in the TiO2 lattice.