Photoresponse of Visible Light Active CM-n-TiO₂, HM-n-TiO₂, CM-n-Fe₂O₃, and CM-p-WO₃ towards Water Splitting Reaction

Figure 26

X-ray diffraction (XRD) patterns for flame-made CM-n-Fe₂O₃ (top plot) and the reference oven-made n-Fe₂O₃ (bottom plot) films. The detected probable formulas to comply with peaks are a = Fe₂O₃; b = Fe₃O₄; c = FeO; d = Fe; e = FeC; f = Fe₂C; g = Fe₃C; h = FeCO₃ [23].