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. 2022 Jan 25;13:484. doi: 10.1038/s41467-022-28146-6

Fig. 5. Photocatalytic activity of Z-scheme OWS.

Fig. 5

a Time course of Z-scheme OWS on the optimized conditions under visible light irradiation. b Dependence curve of AQE value as a function of irradiation wavelength, and UV-Vis DRS of the HEP and OEP. c Time curve of Z-scheme OWS under illumination of the standard solar simulator (AM 1.5 G, 100 mW cm−2). Reaction conditions: a 50 mg OEP, 50 mg HEP (ZrO2/TaON, 1.0 wt% Rh, 1.5 wt% Cr) or 50 mg OEP, 100 mg HEP (MgTa2O6-xNy/TaON, 2.5 wt% Rh, 3.75 wt% Cr), 100 mL 25 mM sodium phosphate buffer solution (pH 6.0) containing K4[Fe(CN)6] (10 mM), 300 W xenon lamp (λ ≥ 420 nm), temperature: 288 K, Pyrex top-irradiation type. b 75 mg OEP, 75 mg HEP (ZrO2/TaON, 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 xenon lamp, temperature: 298 K, Pyrex top-irradiation type. (c) 50 mg OEP, 50 mg HEP (ZrO2/TaON, 1.0 wt% Rh, 1.5 wt% Cr), 100 mL 25 mM sodium phosphate buffer solution (pH 6.0) containing K4[Fe(CN)6] (10 mM), temperature: 288 K, Pyrex top-irradiation type.