Preparation, Characterization, and Activity Evaluation of CuO/F-TiO₂ Photocatalyst

Figure 4

UV-Vis diffuse reflectance spectra of different photocatalysts. (a) TiO₂, (b) F-TiO₂, (c) CuO(0.1 wt.%)/F-TiO₂, (d) CuO(0.3 wt.%)/F-TiO₂, (e) CuO(0.5 wt.%)/F-TiO₂, (f) CuO(1 wt.%)/F-TiO₂.