▎ 摘　　要

NOVELTY - Device comprises an intercalation reaction kettle (1), an oxidation reaction kettle (2) and a collection kettle (3). The intercalation reaction kettle is installed inside the oxidation reaction kettle, and the oxidation reaction kettle is installed inside the collection kettle. The side wall (4) of the intercalation reactor has a first hole, and the side wall of the oxidation reactor (5) has a second hole. The diameter of the first hole is 20-80 microns, and the diameter of the second hole is 4-20 microns. An agitator (6) is installed in the intercalation reactor, a shear emulsifier (7) is installed in the intercalation reactor and the oxidation reactor, and a discharge valve (8) is installed at the bottom of the collection reactor. USE - Device for preparing uniform and small-size graphene oxide. ADVANTAGE - The graphene oxide size is uniformly distributed in a very narrow size range, has low cost and low industrialization difficulty. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a device for preparing uniform and small-size graphene oxide. Intercalation reaction kettle (1) Oxidation reaction kettle (2) Collection kettle (3) Side wall (4) Side wall of the oxidation reactor (5) Agitator (6) Shear emulsifier (7) Discharge valve (8)