The role of the surface intermediates in the photoelectrochemical behaviour of anatase and rutile TiO2
โ Scribed by Jan Augustynski
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 346 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0013-4686
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โฆ Synopsis
Abatract-Supcrior activity of anatase TiO, towards photodegradation of a series of organic compounds is interpreted in terms of difkrences in the surface behaviour of anatase and rutile. Very stable surface peroxides are shown to be formed at the anatase during photo-oxidation reactions but to be absent from the rutile surface.
๐ SIMILAR VOLUMES
From calculations of the electrostatic potential at the most densely packed rutile (110) and anatase (001) crystal faces. greater reducibility of the coordinatively unsaturated Ti4' \_ Ions at the rutile surface than at the anatase surface is predicted. Consequently, the intrinsic hewis acidity of c
## Abstract The effect of calcination temperature on the photocatalytic degradation of phenol with aqueous suspensions of synthetic anatase and rutile TiO~2~ under UV light irradiation (__ฮป__ > 320 nm), was studied in the absence and presence of NaF. The presence of fluoride accelerates the degrada