Photocatalytic degradation of salicylic acid by colloidal Fe2O3 particles
β Scribed by Bonamali Pal; Maheshwar Sharon
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1998
- Tongue
- English
- Weight
- 225 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0268-2575
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β¦ Synopsis
The photocatalytic decomposition of salicylic acid with visible light in an oxygenated aqueous suspension of colloidal particles has been a-Fe 2 O 3 studied. About 10Γ20 ppm of this organic is degraded within 1 h of irradiation, depending upon the initial salicylic acid concentration. Kinetic parameters have been investigated in terms of a Γrst order rate equation. The rate constant (k ap ) for this heterogeneous photocatalysis was evaluated as a function of the initial concentration of salicylic acid. Carbon dioxide has been detected over prolonged visible light irradiation.
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