Evaluation of the amount of superoxide anion radicals generated by ultrasonic cavitation in a TiO 2 suspension

In this study, the amount of radicals generated by high-intensity ultrasound irradiation of TiO 2 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 H 2 O 2 with a...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2023-07, Vol.62 (SJ), p.SJ8002
Main Authors: Kim, Jungsoon, Jung, Jihee, Kim, Moojoon
Format: Article
Language:English
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Summary:In this study, the amount of radicals generated by high-intensity ultrasound irradiation of TiO 2 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 H 2 O 2 with a concentration of 50 mM, 5 g of TiO 2 pellets with an average diameter of 3.85 mm, and 20 min of irradiation with ultrasound with an acoustic intensity of 22.7 × 10 3 W m −2 were the most efficient conditions for activating the generation of radicals.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/acb3d5