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Paper Details

Photocatalytic Degradation of Hazardous Dye Acridine Orange Using Semiconductor Titanium Dioxide (TiO2) Under Visible Light

David Swami and Pramod Pandit

Journal Title:Nature Environment and Pollution Technology

Inordinate population growth and advanced technological development, at one hand bettered the life of human and on the other hand it is greatly damaging the environment. In the present work the study of hazardous synthetic dyes, especially used in textile and leather industries, has been carried out. These dyes in wastewater are principal cause of pollution in water bodies of human use. The most effective decomposition of Acridine Orange dye was observed with catalyst amount 300 mg/100 mL with 3.8 10-5 mole dm-3 initial dye concentration at pH 9. The rate of reaction increases as the concentration of H2O2 increases and reaches the optimum at 9 10-6 mole dm-3. As the irradiation time increased, dye molecules got degraded and the estimated COD value decreases from 184 mg/L to 0 mg/L, and CO2 value increases from 55 mg/L to 242 mg/L in 6 hours of illumination.