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) A typical snapshot of produced nanoparticles measured by measurement by NTA after 1 min ultrasonic (40 kHz, 25 °C); (b) concentrations of generated nanobubbles in pure water, after 1 min ultrasonic and degassed after ultrasonic (40 kHz, 25 °C).