Coupled TiO2-based semiconductor systems have attracted much interest because of synergistic effect on photocatalytic activity. Here, we prepared TiO2/Fe2O3 and TiO2/CuO bilayer-type photocatalyst film and carried out the photodeposition of… Click to show full abstract
Coupled TiO2-based semiconductor systems have attracted much interest because of synergistic effect on photocatalytic activity. Here, we prepared TiO2/Fe2O3 and TiO2/CuO bilayer-type photocatalyst film and carried out the photodeposition of Ag to identify the reduction sites. We found that in TiO2/Fe2O3 (CuO) boundary, deposition occurred preferentially on the side of TiO2. This phenomenon can be explained by semiconductor physics principle, not by the classical theory of the interparticle electron transfer.
Journal Title: Chemistry Letters
Year Published: 2018
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