Efficient Photoelectrochemical Water Oxidation by Metal-Doped Bismuth Vanadate Photoanode with Iron Oxyhydroxide Electrocatalyst

Figure 2

LSVs for the sulfite oxidation (0.1 M Na₂SO₃ + 0.1 M Na₂SO₄) and water oxidation (0.1 M Na₂SO₄ + 0.1 M phosphate buffered, pH 7) using the W-Mo-doped BiVO₄ under (a) UV-visible and (b) visible light irradiation. Scan rate: 20 mV/s. Light intensity: 100 mW/cm².

(a)

(b)