Abstract
The rutile modification of TiO2 in the form of a powder suspended in water shows promise as a photocatalyst for the production of hydrogen from water1,2. Although hydrogen production was reported3 from pure rutile powder suspended in an aqueous solution, subsequent work1,2 revealed that sustained hydrogen production required Pt or RuO2 on the rutile surface. This limiting usefulness of crystalline rutile in photocatalytic applications has prompted us to investigate the photocatalytic properties of amorphous titania in the form of a porous glass. Here we report an inexpensive method of forming monolithic porous titania glass (PTG) and some properties that make it uniquely suited to photocatalytic applications such as its inexpensive fabrication, its high surface area, and its spontaneous photo-formation of H2 from water without the need for precious metals.
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Kruczynski, L., Gesser, H., Turner, C. et al. Porous titania glass as a photocatalyst for hydrogen production from water. Nature 291, 399–401 (1981). https://doi.org/10.1038/291399a0
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DOI: https://doi.org/10.1038/291399a0
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