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Photo Degradation of Methylene Blue in Aqueous Solution by Using Advanced Oxidation Process and Solar Irradiation | ||
| Almuthanna Journal of Pure Science (MJPS) | ||
| Article 1, Volume 2, Issue 1, 2014, Pages 0-0 | ||
| Author | ||
| Azal S. Waheeb | ||
| Abstract | ||
| The work consists of two parts . The first including of photodegradation of Methylene Blue by using advanced oxidation processes at lab temperature in presence and absence of UV light . The second part consists of photocatalytic reaction of Methylene Blue has been carried out with sun light on ZnO powder. Advanced oxidation processes have proved to be highly effective in degradation of most pollutants in wastewaters. The photocatalytic bleaching of the dye was observed Spectrophotometer . The aim of this study was to show the some parameters such effect of initial dye concentration, pH , initial hydrogen peroxide dosage and catalyst ZnO on the oxidation of MB dye . Generally it has been found that the rates of photodegradation of MB dye was higher in presence of UV radiation . Also, photocatalytic ZnO showed the importance with sun light lead to enhance the generation of hydroxyl radicals which drive the photooxidation processes. It has been found the photodegradation reaction of dye under UV obeys the first order kinetics. The work was done on the roof of the laboratory building and the time of irradiation was between 1.00 am - 3.00 pm and the date of experiments was in July . | ||
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