▎ 摘　　要

NOVELTY - Producing reduced graphene oxide-coated fiber yarn, comprises (S101) swelling hydrophobic fiber yarn, (S102) coating graphene oxide on swollen fiber yarn by immersing the swollen fiber yarn in polar aprotic solvent dispersed with graphene oxide, and (S103) reducing graphene oxide. The graphene oxide dispersed in polar aprotic solvent has amide or ester group on the surface. USE - The method is useful for producing reduced graphene oxide-coated fiber yarn (claimed). ADVANTAGE - The method maximizes hydrophobicity of fiber yarn, and suppresses adsorption of pollutants. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flowchart of the method for producing reduced graphene oxide-coated fiber yarn (Drawing includes non-English language text). Hydrophobic fiber yarn swelling step (S101) Graphene oxide coating step (S102) Graphene oxide reducing step (S103)