Abstract
In this study, the amount of radicals generated by high-intensity ultrasound irradiation of TiO2 suspensions was evaluated through image processing to determine the degree of discoloration of methylene blue added to the suspension. It was found that 40 ml of distilled water, 0.2 g of H2O2 with a concentration of 50 mM, 5 g of TiO2 pellets with an average diameter of 3.85 mm, and 20 min of irradiation with ultrasound with an acoustic intensity of 22.7 × 103 W m−2 were the most efficient conditions for activating the generation of radicals.
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