Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 104, Issue 19, Pages 4585-4587Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp000049r
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A major challenge in heterogeneous photocatalysis is the need to increase charge separation efficiency of a photocatalyst, under illumination, without any applied electrical potential. Regularly patterned TiO2 films were formed on a SnO2-film coated soda lime glass substrate by using an organically modified sol-gel method: This bilayer-type photocatalyst exhibited a very high photocatalytic activity for gas-phase reactions. Efficient interfacial electron transfer from the TiO2 overlayer to the SnO2 underlayer was demonstrated by labeling and visualizing the reduction sites with Ag particles.
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