Effect of Particle Addition on Degradation Rate of Methylene Blue in an Ultrasonic Field
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概要
- 論文の詳細を見る
Ultrasound has been found to be an attractive advanced technology for the degradation of hazardous organic compounds in water. In addition, the sonochemical reaction is enhanced by particle addition. However, the enhancement mechanism of particle addition has not been investigated well, because ultrasound enhances not only chemical reactions but also mass transfer. In this study, the ultrasonic degradation of methylene blue was carried out, and the effects of the ultrasonic irradiation condition on the degradation rate were investigated. The effect of ultrasonic frequency on the improvement of degradation by particle addition was also investigated. The order of degradation rate with frequency was the same as the tendency of sonochemical efficiency value obtained using KI oxidation dosimetry method (\mathit{SE}_{\text{KI}}). The degradation process of methylene blue was intensified by particle addition, and the degradation rate increased with increasing amount of particle addition. The enhancement of degradation rate by particle addition was influenced by both ultrasonic frequency and type or diameter of particles.
- 2013-07-25
著者
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Matsumoto Hideyuki
Department Of Applied Chemistry Faculty Of Engineering Gunma University
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Shono Atsushi
Department Of Geophysics Tohoku University
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OTAKE Katsuto
Department of Chemical Systems, National Institute of Materials and Chemical Research
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Kobayashi Daisuke
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Kuroda Chiaki
Deparment of Chemistry, Rikkyo University
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Honma Chiemi
Department of Chemical Science and Technology, Tokyo University of Science, Shinjyuku, Tokyo 162-8601, Japan
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Takahashi Tomoki
Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science
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Kuroda Chiaki
Department of Chemical Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
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Matsumoto Hideyuki
Department of Chemical Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
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