Fig. 2From: Enhancement of Photo-Oxidation Activities Depending on Structural Distortion of Fe-Doped TiO2 NanoparticlesXRD and corresponding Raman spectra show that the crystal structures and chemical states vary with the amount of Fe dopant. a, d 1 wt.% Fe@TiO2. b, e 3 wt.% Fe@TiO2. c, f 5 wt.% Fe@TiO2 Back to article page