✦ LIBER ✦
Environmental photochemistry: Is iron oxide (hematite) an active photocatalyst? A comparative study: α-Fe2O3, ZnO, TiO2
✍ Scribed by Claudius Kormann; Detlef W. Bahnemann; Michael R. Hoffmann
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 676 KB
- Volume
- 48
- Category
- Article
- ISSN
- 1010-6030
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✦ Synopsis
The photocatalytic activity of a-Fe203 colloids is compared to the activities of colloids and suspensions of ZnO and TiOz. The formation of H,O, is investigated and the oxidation of organic molecules is studied with high sensitivity. While ZnO and TiOz are found to be quite active photocatalysts in the formation of hydrogen peroxide and in the degradation of chlorinated hydrocarbon molecules, only negligible photocatalytic activity is found for ar-FezOs. Upper limits of quantum yields for several photoreactions of a-FezOJ are given.