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 na...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.展开更多
基金supported by the National Key R&D Program of China(No.2018YFE0203002)the National Natural Science Foundation of China(No.22173041,No.22173042,No.21973037,NSFC Center for Chemical Dynamics)+4 种基金the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB17000000)the Shenzhen Science and Technology Innovation Committee(No.JCYJ2019080914021660,No.ZDSYS20200421111001787)the Guangdong Innovative&Entrepreneurial Research Team Program(No.2019ZT08L455,No.2019JC01X091)the International Partnership Program of Chinese Academy of Science(No.121421KYSB 20170012)Innovation Program for Quantum Science and Technology(No.2021ZD0303304).
文摘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.
