Abstract
Quantum yields of the photocatalytic degradation of methyl orange under controlled periodic illumination (CPI) have been modelled using existing models. A modified Langmuir–Hinshelwood (L–H) rate equation was used to predict the degradation reaction rates of methyl orange at various duty cycles and a simple photocatalytic model was applied in modelling quantum yield enhancement of the photocatalytic process due to the CPI effect. A good agreement between the modelled and experimental data was observed for quantum yield modelling. The modified L–H model, however, did not accurately predict the photocatalytic decomposition of the dye under periodic illumination.
Original language | English |
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Pages (from-to) | 398-403 |
Number of pages | 6 |
Journal | Applied Catalysis B: Environmental |
Volume | 156–157 |
Early online date | 30 Mar 2014 |
DOIs | |
Publication status | Published - Sep 2014 |
Keywords
- Mathematical model
- Langmuir–Hinshelwood
- Quantum yield
- Titanium dioxide
- Photocatalysis