Formation and stability of ultrasonic generated bulk nanobubbles

Mo Chen-Ran^{1, 2}, Wang Jing^{1, 2, 4}, Fang Zhou^{1, 2}, Zhou Li-Min^{1, 2}, Zhang Li-Juan^{1, 3, †}, Hu Jun^{1, 3, ‡}

(color online) (a) Statistics of the nanobubbles’ average diameters with different ultrasonic time in the ultrasonic water. (b) The nanobubbles concentration with different ultrasonic time in the ultrasonic water. (c) The detailed size distribution with different ultrasonic time in the ultrasonic water.