Summary
The photoformation of hydrogen from liquid water in the presence of Pt/TiO2 catalyst is not a photocatalytic reaction of water splitting. The gazeous products formed are composed of hydrogen and CO2. Oxygen is not detected. The formation of CO2 stems out from the prssence in water of an organic “sacrificial” substance. In the absence of an organic impurity the buildup of the peroxydic species on the surface of TiO2 limits the reaction of photoformation of hydrogen. It is suggested that this hydrogen is evolved through the photolysis of surface OH groups of TiO2.
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© 1986 D. Reidel Publishing Company
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Ichou, I.A., Bianchi, D., Formenti, M., Teichner, S.J. (1986). Photoformation of Hydrogen in Liquid Water in the Presence of Pt/TiO2 Catalyst And Organic Impurities. In: Pelizzetti, E., Serpone, N. (eds) Homogeneous and Heterogeneous Photocatalysis. NATO ASI Series, vol 174. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4642-2_26
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DOI: https://doi.org/10.1007/978-94-009-4642-2_26
Publisher Name: Springer, Dordrecht
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