▎ 摘　　要

NOVELTY - Graphene oxide fiber, is claimed. The preparation comprises taking viscous graphene oxide as a spinning solution, carrying out wet spinning process, oxidizing large pi bond of graphene layer and electron-deficient groups to form pi - pi stacking, where the intercalation distance of the graphene oxide fibers is larger than that of graphene sheets. USE - Used as graphene oxide fiber. ADVANTAGE - The graphene oxide fiber has good tensile strength and stability. The method has simple operation procedure, and rapid mass production; and is environmental-friendly and economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene oxide fiber, comprising (i) heating graphene oxide aqueous dispersion liquid to 45-65 degrees C, stirring and concentrating to paste, to obtain concentrated graphene oxide; (ii) preparing 0.00477-0.04770 mol/l electron-deficient compound aqueous solution; (iii) adding electron-deficient compound aqueous solution used as a coagulating liquid into concentrated graphene oxide obtained in step (i) used as a spinning solution, and carrying out wet spinning process.