Effect of dimethyl sulfoxide addition on ultrasonic degradation of methylene blue
| Autor: | Hideyuki Matsumoto, Masakazu Naya, Atsushi Shono, Yuichiro Shimada, Daisuke Kobayashi, Kaho Shimakage, Katsuto Otake |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
integumentary system Dimethyl sulfoxide organic chemicals Radical Kinetics General Engineering General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Scavenger (chemistry) chemistry.chemical_compound chemistry 0103 physical sciences Degradation (geology) Ultrasonic sensor 0210 nano-technology Degradation rate constant Methylene blue |
| Zdroj: | Japanese Journal of Applied Physics. 55:07KE01 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.7567/jjap.55.07ke01 |
| Popis: | The ultrasonic degradation of methylene blue was carried out in the absence and presence of dimethyl sulfoxide (DMSO) as a radical scavenger for various frequencies, and the effects of DMSO addition on the degradation rate constant estimated by assuming first-order kinetics were investigated. The degradation reaction rate decreased with DMSO addition, and hydroxyl radicals were observed to play important roles in the degradation of methylene blue. However, the degradation reaction did not stop with DMSO addition, and the degradation rate constant in the presence of DMSO was not affected by ultrasonic frequency. |
| Databáze: | OpenAIRE |
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