Influence of cathodic reduction on the photoelectrochemical behaviour of titanium dioxide under UV radiation measurement of the photocurrent in chloride medium
✍ Scribed by J.P. Frayret; A. Caprani; F. Charru; G. Momplot
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 379 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
It is established that a cathodic pretreatment of thermic titanium dioxide increases considerably the photoresponse of TiO, under UD radiation in chloride solution. The effects of the duration of the pretreatment and of the nature of the acidic media used to perform the cathodic pretreatment are investigated. The variation law of the increase of the photocurrent with the pretreatment duration, which is the sum of two exponential laws at least, reveals the presence of various phenomena in the improvement of the energetic efficiency. The various mechanisms involved there are discussed according to different hypotheses.