摘要
A variety of affecting factors on ultrasonic degradation of methylene blue in the presence of TiO2 were studied.The results indicated that the effects of ultrasonic degradation were more apparent in the presence of nanometer rutile TiO2 than of the solely ultrasonic ones.The sonochemical degradation kinetic of methylene blue in water was first-order.The degradation rate of methylene blue reached up to 80% in 120 min at ultrasonic frequency of 40kHz,power input of 50W,amount of catalyst of 1.0g/L,pH 5.16 and initial dye concentration of 5.0mg/L.Therefore,this method has better prospects in application.
A variety of affecting factors on ultrasonic degradation of methylene blue in the presence of TiO2 were studied. The results indicated that the effects of ultrasonic degradation were more apparent in the presence of nanometer rutile TiO2 than of the solely ultrasonic ones. The sonochemical degradation kinetic of methylene blue in water was first - order. The degradation rate of methylene blue reached up to 80% in 120 min at ultrasonic frequency of 40kHz,power input of 50W, amount of catalyst of 1.0g/L, pH 5.16 and initial dye concentration of 5.0mg/L. Therefore, this method has better prospects in application.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2006年第5期579-581,共3页
Chemical Research and Application
基金
国家自然科学基金资助项目(20371023)
