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. 2021 Feb 12;12:1005. doi: 10.1038/s41467-021-21284-3

Fig. 1. Photocatalytic H2 evolution and apparent quantum yield of Pt-modified BaTaO2N (RbCl).

Fig. 1

a H2 evolution rates as a function of the total Pt loading during visible-light-driven H2 production reactions from an aqueous methanol solution. IMP and PD denote Pt loading by impregnation–reduction and photodeposition, respectively, and IMP + PD denotes 0.1 wt% Pt loading by impregnation–reduction and additional Pt loading by photodeposition. b Apparent quantum yield as a function of the incident light wavelength during visible-light-driven H2 production over Pt(0.1%IMP + 0.2%PD)/BaTaO2N. Conditions: Pt-modified BaTaO2N (RbCl) photocatalyst, 0.1 g; 10 vol% aqueous methanol solution, 150 mL; light source, 300 W Xenon lamp equipped with a cut-off filter (λ ≥ 420 nm) for a and various band-pass filters for b; reaction system, Pyrex top-illuminated vessel connected to the closed gas-circulation system without evacuation of gas products. Error bars indicate standard deviation for three measurements.