▎ 摘　　要

NOVELTY - Producing activated carbon comprises preparing graphene oxide by a chemical exfoliation process using a carbon source and an acid, separating graphene oxide and a residual carbon source from a crude product including graphene oxide and a residue, adding the separated residual carbon source into a reactor and heating to 800 degrees C and maintaining the elevated temperature while supplying steam. USE - The method is useful for producing activated carbon. ADVANTAGE - The method: recycles the residual carbon source after the chemical exfoliation process of graphene oxide, which can increase the utilization of the carbon source to be disposed and lower the disposal cost and environmental pollution; simplifies the manufacturing process of activated carbon of porous activated carbon by applying a residual carbon source that has undergone an oxidation reaction in a chemical reaction process; and produces high quality porous activated carbon by activation process. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method for producing activated carbon (Drawing includes non-English language text).