Abstract
The processes of photocatalytic hydrogen production from aqueous solutions of glycerol under soft UV radiation over photocatalysts based on platinized titanium dioxide were studied with varying pH of the reaction medium, substrate concentration, and radiation wavelength. It was shown that the dependence of the rate of photocatalytic hydrogen production on the substrate concentration corresponds to the Langmuir–Hinshelwood mechanism. The maximum activity in the production of hydrogen was 10.4 mmol \({\text{g}}_{{{\text{cat}}}}^{{ - 1}}{\kern 1pt} {{{\text{h}}}^{{ - 1}}}\).
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ACKNOWLEDGMENTS
The study of the photocatalysts by XPS, XRD analysis, and diffuse reflectance spectroscopy was carried out using the equipment of the Shared-Use Center “National Center for Catalyst Research.”
Funding
This work was supported by the Russian Science Foundation (grant no. 19-73-20020).
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Translated by V. Makhlyarchuk
Abbreviations and notation: XPS, X-ray photoelectron spectroscopy; DRES, diffuse reflectance electron spectroscopy; XRD, X-ray diffraction.
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Kurenkova, A.Y., Kozlova, E.A. & Kaichev, V.V. The Influence of Reaction Conditions on the Rate of Hydrogen Evolution in Aqueous Solutions of Glycerol over Pt/TiO2 Photocatalysts. Kinet Catal 62, 62–67 (2021). https://doi.org/10.1134/S002315842006004X
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DOI: https://doi.org/10.1134/S002315842006004X