Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9605673 | Journal of Photochemistry and Photobiology A: Chemistry | 2005 | 5 Pages |
Abstract
Prevention against H2S-derived catalyst deactivation on Pd catalyst (Pd/TiO2) was investigated using TiO2 photocatalytic reaction. The catalytic activity was evaluated by CO oxidation. In the dark, the catalytic activity reduced and completely deactivated in the presence of H2S. In contrast, under UV light illumination condition, even in the presence of H2S with the same concentration, it was found that the catalyst kept the activity because of the photocatalytic reaction of TiO2, resulting in the oxidation of H2S to sulfate. The completely deactivated catalyst was also regenerated by the photocatalytic reaction.
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Authors
Tetsuya Kako, Hiroshi Irie, Kazuhito Hashimoto,