▎ 摘　　要

NOVELTY - Producing graphene or graphene-like material, comprises: (a) providing particles of a crystalline graphitic material; (b) dispersing the particles of the crystalline graphitic material in a solvent mixture or surfactant mixture; (c) submitting the mixture to a cavitation force such that cavitation bubbles are present; and (d) submitting the mixture to high shear agitation of 2000-35000 rpm. USE - The method is useful for producing graphene or graphene-like material (claimed) including metal dichalcogenides, oxides and carbides, or two-dimensional or few-layer nano-materials. ADVANTAGE - The method: is cost-effective; provides graphene or graphene-like material with higher control of defects in the structure; does not utilize strong oxides or acids thus it is safe and environmental friendly; and utilizes combination of cavitation force and high shear agitation that improves production efficiency by reducing time-cycle, homogenizing mixture or lower range of particle size and avoid standing waves in liquid medium. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a device for production of graphene or graphene-like material, comprising a reactor having an enclosed vessel for receiving a solvent or surfactant mixture with dispersed particles of a crystalline graphitic material, the reactor is arranged for submitting the mixture in the enclosed vessel to a cavitation force so that cavitation bubbles are present and, simultaneously in the same enclosed vessel and submitting the mixture to high shear agitation of 2000-35000 rpm.