TY - JOUR
T1 - Effect of particle addition on degradation rate of methylene blue in an ultrasonic field
AU - Honma, Chiemi
AU - Kobayashi, Daisuke
AU - Matsumoto, Hideyuki
AU - Takahashi, Tomoki
AU - Kuroda, Chiaki
AU - Otake, Katsuto
AU - Shono, Atsushi
PY - 2013/7
Y1 - 2013/7
N2 - 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 (SEKI). 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.
AB - 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 (SEKI). 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.
UR - http://www.scopus.com/inward/record.url?scp=84880998427&partnerID=8YFLogxK
U2 - 10.7567/JJAP.52.07HE11
DO - 10.7567/JJAP.52.07HE11
M3 - Article
AN - SCOPUS:84880998427
SN - 0021-4922
VL - 52
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 7 PART 2
M1 - 07HE11
ER -