摘要
Although various and unique properties of bulk nanobubbles have drawn researchers'attention over the last few years,their formation and stabilization mechanism has remained unsolved.In this paper,we use ultrasonic methods to produce bulk nanobubbles in the pure water and give a comprehensive study on the bulk nanobubbles properties and generation.The ultrasonic wave gives rise to constant oscillation in water where positive and negative pressure appears alternately.With the induced cavitation and presence of dissolved air,the bulk nanobubbles formed."Nanosight"(which is a special instrument that combines dynamic light scattering with nanoparticle tracking analysis)was used to analyze the track and concentration of nanobubbles.Our results show that in our experiment,sufficient bulk nanobubbles were generated and we have proven they are not contaminations.We also found nanobubbles in the ultrasonic water change in both size and concentration with ultrasonic time.
作者
Chen-Ran Mo
Jing Wang
Zhou Fang
Li-Min Zhou
Li-Juan Zhang
Jun Hu
莫宸冉;王菁;方舟;周利民;张立娟;胡钧(Key Laboratory of Interfacial Physics and Technology,Shanghai Institute of Applied Physics,Chinese Academy of Sciences Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Synchrotron Radiation Facility,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201204,China;School of Physical Science and Technology,Shanghai Tech University,Shanghai 201204,China)
