It was found that treatment of KNb3O8 with nitric acid leads to the formation of K3H3Nb10.8O30, which has enhanced photocatalytic activity in the production of hydrogen. The highest rate of release of H2 in the investigated systems is achieved after treatment of KNb3O8 with nitric acid for 10 h, which corresponds to complete transformation of the initial niobate in the K3H3Nb10.8O30. It was shown that the production of hydrogen with K3H3Nb10.8O30 as photocatalyst can be realized with a comparably low content of electron donor. The effect of a series of factors on the rate of photocatalytic release of H2 in such systems was determined.
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 53, No. 2, pp. 94-99, March-April, 2017.
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Shvalagin, V.V., Grodzyuk, G.Y., Korzhak, G.V. et al. Photocatalytic Properties of Layered K3H3Nb10.8O30 in the Hydrogen Evolution Reaction from Aqueous Solutions of Alcohols. Theor Exp Chem 53, 100–105 (2017). https://doi.org/10.1007/s11237-017-9505-y
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DOI: https://doi.org/10.1007/s11237-017-9505-y