Industrial ultrasonic dispersion equipment uses ultrasonic assisted Hummers method to prepare graphene oxide, which is based on the medium of liquid, adding high frequency ultrasonic vibration to the liquid. Because ultrasound is a mechanical wave, which is not absorbed by molecules, it causes molecular vibration in the process of propagation. Under the cavitation effect, that is, high temperature, high pressure, micro jet, strong vibration and other additional effects, the distance between molecules increases its average distance due to vibration, resulting in molecular breakage. With the increase of ultrasonic power, the layer spacing of graphite oxide is increasing.
