| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 584900 | Journal of Hazardous Materials | 2007 | 5 Pages |
Abstract
The photooxidative degradation of 4-nitrophenol (4-NP) was studied in the UV/H2O2 process. The effects of applied H2O2 dose, initial 4-NP concentration and UV light intensity have been studied. Degradation was complete in 13Â min and follows apparent first-order kinetics. The removal efficiency of 4-NP depends on the operational parameters and increases as the initial concentration of H2O2 and light intensity are increased but it decreases when the initial concentration of 4-NP is increased. From HPLC analysis, major intermediate products were hydroxyl derivatives of 4-NP as a result of photooxidative hydroxylation.
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Authors
N. Daneshvar, M.A. Behnajady, Y. Zorriyeh Asghar,