Synthesis and Characterization of K-Ta Mixed Oxides for Hydrogen Generation in Photocatalysis

Figure 3

UV-vis spectra of samples: (a) K-500, (b) K-550, (c) K-600, (d) K-650, (e) K-700, (f) K-750, (g) K-800, (h) K-850, and (i) K-900.