USING TiO2 WITH SUN LIGHT AND H2O2 TO ELIMINATE SOME ORGANIC POLUTANTS
Mokhtar, Samia; Khaled El-sousy, and Monther salem;
Abstract
Elimination of five organic dyes having various oxidation potentials was tested. (Sunlight/TiO2/H2O2) system was used under the same experimental conditions, where a controllable laboratory simulation system was built. The tested dyes were: Picric acid, remazol blue B, methyl blue, methyl violet and malachite green. More detailed kinetic study was conducting concerning the most persisting one which appeared to be picric acid according to primary test. The influence of the process related parameters such as: Light intensity, pH, temperature, catalyst dose and the initial pollutant was studied. It follows from the results that the elimination process is efficient. The rate of elimination was directly proportional to each of: Sunlight intensity, pollutant and H2O2 initial concentration and TiO2 dosage. The process was found to be Arrhenius type, exothermal reaction. Electron spin resonance tests confirmed the free radical mechanism through the oxidation process.
Other data
| Title | USING TiO2 WITH SUN LIGHT AND H2O2 TO ELIMINATE SOME ORGANIC POLUTANTS | Authors | Mokhtar, Samia ; Khaled El-sousy, and Monther salem | Issue Date | 2005 | Journal | The First International conference for Science and Development. Faculty of Sci. The Islamic Univ. of Gaza, 1-2 March (2005). |
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