Influence of Mixing and Nanosolids on the Formation of Nanobubbles

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Abstract
Nanobubbles (NBs) generation by replacing different dissolved gas solutions has been widely adopted. Recently, we have found that mixing solutions with different gas contents can also produce a large number of NBs. However, the mechanism of NBs formation during mixing has not been well explored. Here, we designed a series of experiments to investigate the influence of mixing of different solutions on the concentration and size contribution of formed NBs via the help of nanoparticle track analysis. The effect of nano-solids was also investigated. The pressurization and depressurization were used to produce NBs. The results indicated that NBs can be influenced by the gas contents and nano-solids. The addition of nano-solids is beneficial to the produce more NBs. Both the nano-solids and gas contents together are expected to substantially increase the concentration of NBs. Those results will be very helpful to understand the formation and stability of NBs.
Funding Information
  • National Natural Science Foundation of China (11290165)
  • National Natural Science Foundation of China (11575281)
  • National Natural Science Foundation of China (11874379)
  • National Natural Science Foundation of China (51474254)
  • National Natural Science Foundation of China (U1532260)
  • National Natural Science Foundation of China (11305252)
  • Chinese Academy of Sciences (KJZD-EW-M03)
  • Chinese Academy of Sciences (QYZDJ-SSW-SLH019)

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