Fig. 6. (a) Time courses of Z-scheme overall water splitting and (b) variation of AQY as a function of irradiation wavelength for the combination (Pt/ZrO2/TaON)–(Fe(CN)6]3−/[Fe(CN)6]4−)–(Au NPs/CoOx/BiVO4). Reaction conditions: 75 mg OEP (0.8 wt% Au; 0.1 wt% CoOx), 75 mg HEP (1.0 wt% Rh, 1.5 wt% Cr), 150 mL 25 mM sodium phosphate buffer solution (pH 6.0) containing K4[Fe(CN)6] (10 mM), 300 W Xe lamp (λ ≥ 420 nm), temperature 298 K, Pyrex top-irradiation type. Reprinted with permission from ref. 35. Copyright 2018 Elsevier Inc.
