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| Presentation | 2015-01-28 14:15 Chemical effects and sonoluminescence in ultrasonic cavitation Kazuya Nagamine, Ken Yamamoto (Kansai Univ.)  US2014-77 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The chemical effects of ultrasonic cavitation using ultrasonic waves at 20 kHz, 400 kHz, 626 kHz, 821 kHz, and 1 MHz were compared. Sonochemical efficiency and methylene blue degradation were measured by applying ultrasonic waves to a 0.1 M aqueous solution of potassium iodine and an aqueous solution of methylene blue with absorbance adjusted to about 2.0, and using an absorptiometer to measure absorbance at wavelengths of 355 nm and 664 nm, respectively. The amount of hydrogen peroxide generated from distilled water was also measured. The chemical effects at 400 kHz were much higher than those that at 20 kHz, which is the frequency generally used for ultrasonic cleaners or in the chemical industry. The chemical effects were decreased when three kinds of alcohol (ethanol, 2-propanol, and tert-butylalcohol) were added. The spectrum of sonoluminescence in the 240–370 nm range was measured at all frequencies in Ar-saturated water and was found to be correlated with the chemical effects. Furthermore, sonoluminescence in Ar-saturated water with added alcohol was decreased. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | sonoluminescence / OH radical / radical scavenger / frequency dependence / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 422, US2014-77, pp. 15-19, Jan. 2015. | |
| Paper # | US2014-77 | |
| Date of Issue | 2015-01-21 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2014-77 |
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| Conference Information | |
| Committee | US EA |
| Conference Date | 2015-01-28 - 2015-01-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics，and Related Topics |
| Paper Information | |
| Registration To | US |
| Conference Code | 2015-01-US-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Chemical effects and sonoluminescence in ultrasonic cavitation |
| Sub Title (in English) | |
| Keyword(1) | sonoluminescence |
| Keyword(2) | OH radical |
| Keyword(3) | radical scavenger |
| Keyword(4) | frequency dependence |
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| 1st Author's Name | Kazuya Nagamine |
| 1st Author's Affiliation | Kansai University (Kansai Univ.) |
| 2nd Author's Name | Ken Yamamoto |
| 2nd Author's Affiliation | Kansai University (Kansai Univ.) |
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| Speaker | Author-1 |
| Date Time | 2015-01-28 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2014-77 |
| Volume (vol) | vol.114 |
| Number (no) | no.422 |
| Page | pp.15-19 |
| #Pages | 5 |
| Date of Issue | 2015-01-21 (US) |
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