▎ 摘　　要

NOVELTY - The method involves taking graphite block (10) having one end sheet combination. The jet engine is activated, which comprises a primary graphite (32) having a small size of primary graphene, is sprayed to one end of the graphite block, and is continuously injected into the two layer graphite sheet (11) and is embedded with the primary graphite. The graphite sheet is separated from the massive graphene to increase the jet velocity. The fluid (30) is collected after injection, and includes a fine graphite sheet where primary graphene and fluid are separated to obtain graphene. USE - Method for preparing graphene by jet flow. ADVANTAGE - The original structure of the block graphite is destroyed, and the graphite is separated from the bulk graphite by embedding the original graphene into the graphite layer. The small size graphene is prepared efficiently and quickly. The separation of graphene from the block graphite sheet is accelerated. The pollution is reduced by using non-toxic surfactants. The device miniaturization is prepared using fluid circulation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating the method for preparing graphene by jet flow. Graphite block (10) Graphite sheet (11) Nozzle (21) Fluid (30) Primary graphite (32)