Abstract
This study investigates the photodegradation of Acid Violet 49 in an aqueous medium under UV, UV/H(2)O(2,) and combined with photo catalyst (UV/H(2)O(2)/TiO(2), UV/H(2)O(2)/ZnO, and UV/H(2)O(2)/SnO(2)). The impact of all operational parameters including catalytic dosage, peroxidation (H(2)O(2)), pH and dye concentration were evaluated. The degradation efficiency of AV49 was enhanced up to 96% with the alternative photocatalyst UV/H(2)O(2)/ZnO under the circumstances of 0.6mL H(2)O(2), 0.9 g ZnO, 50 mg/L initial dye concentration, and pH 9 after 90 min. Hemolytic test were used to check the toxicity level of products. FTIR spectroscopy of UV/ZnO/H(2)O(2) was applied to identify the functional group of AV49 before and end product of the degradation. Moreover, the analytical technique LC-MS provided valuable information regarding the degradation products of AV 49. A proposed pathway was identified based on the findings of the degradation product.