Effect of Gas Type and Its Pressure on Nanobubble Generation

The dependence of the volume number density of ion-stabilized gas nanobubbles (bubstons) on the type of gas and the pressure created by this gas in deionized water and saline solution has been investigated. The range of external pressures from the saturated water vapor (17 Torr) to 5 atm was studied. It turned out that the growth rate of the volume number density of bubstons is controlled by the magnitude of the molecular polarizability of dissolved gases. The highest densities of bubstons were obtained for gases whose molecules have a dipole moment. At fixed external pressure and the polarizability of gas molecules, the addition of external ions leads to a sharp increase in the content of bubstons.

Automated summary

The study investigated the volume number density of ion-stabilized gas nanobubbles (bubstons) and found that it is influenced by the type of gas and the pressure created by the gas in deionized water and saline solution. It was observed that the growth rate of bubston density is controlled by the molecular polarizability of dissolved gases, with the highest densities obtained for gases with dipole moments. Additionally, the addition of external ions at fixed pressure and gas molecular polarizability leads to a sharp increase in bubston content.