Photocatalytic degradation of organic compounds in aqueous solution by a TiO2-coated rotating-drum reactor using solar light
✍ Scribed by Lianfeng Zhang; Tatsuo Kanki; Noriaki Sano; Atsushi Toyoda
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 274 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0038-092X
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✦ Synopsis
This paper deals with the degradation of aqueous phenol by a newly proposed rotating-drum reactor coated with a TiO photocatalyst, in which TiO powders loaded with Pt are immobilized on the outer 2 2
surface of a glass-drum. The reactor can receive solar light and oxygen from the atmosphere effectively. It was shown experimentally that phenol can be decomposed rapidly by this reactor under solar light: with our 3 experimental conditions the phenol with an initial concentration of 22.0 mg / dm was decomposed within 60 min and was completely mineralized through intermediate products within 100 min. The photonic efficiency under solar light was shown to take the value 0.00742 mol-C / Einstein. The photocatalytic decomposition processes of phenol by this reactor were also discussed on the basis of the Langmuir-Hinshelwood kinetic model.