On the “immobilization” of titanium dioxide in the photocatalytic oxidation of spent waters

✍ Scribed by M. Bideau; B. Claudel; C. Dubien; L. Faure; H. Kazouan

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 584 KB
• Volume: 91
• Category: Article
• ISSN: 1010-6030
• DOI: 10.1016/1010-6030(95)04098-z

✦ Synopsis

The problems raised by the immobilization (or anchoring) of a photocatalyst, namely TiO2, on a support are reviewed, from the standpoints of the procedure itself and of the structure, adherence, morphology and photocatalytic activity of the deposit. Some new experimental findings are also reported. It is concluded that the immobilized photocatalyst absorbs all the actinic light that it can, but the immobilization treatment generally lowers its activity. It would therefore be advisable to tailor a treatment which would at least maintain this activity, and even increase it, possibly by size quantization.