Author(s)

Daisuke Kobayashi^1,2*, Kaho Shimakage², Chiemi Honma², Hideyuki Matsumoto³, Katsuto Otake², Atsushi Shono²

¹Department of Green and Sustainable Chemistry, Tokyo Denki University, Tokyo, Japan.
²Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan.
³Renewable Energy Research Center, Department of Energy and Environment, Advanced Industrial Science and Technology, Fukushima, Japan.

The ultrasonic degradation of methylene blue at a frequency of 490 kHz was carried out in the absence and presence of TiO₂ or Al₂O₃ particle, and the effects of amounts of particle on the enhancement of degradation rate constant estimated by assuming first-order-kinetics were investigated. The degradation reaction was enhanced by particle addition, and the apparent degradation rate constant is proportional to the increase in amount of particle. In addition, the constant of proportionality is not influenced by degraded material and ultrasonic frequency. However, particle type influences the constant of proportionality, and the value of TiO₂ particle is about 6 times as large as that of Al₂O₃ particle.

Degradation, Methylene Blue, Frequency, Particle Addition

Kobayashi, D. , Shimakage, K. , Honma, C. , Matsumoto, H. , Otake, K. and Shono, A. (2015) Effect of Particle Addition on Ultrasonic Degradation Reaction Rate. Open Journal of Acoustics, 5, 67-72. doi: 10.4236/oja.2015.53006.