▎ 摘　　要

NOVELTY - Preparing graphene fiber composite adsorbent comprises (1) adding polyethersulfone to N,N-dimethylacetamide, and fully dissolving to prepare solution-A; (2) adding polyethersulfone and graphene oxide to N,N-dimethylacetamide, and uniformly dispersing to obtain solution-B; (3) using coaxial electrospinning equipment, using solution-A as outer spinning solution, solution-B as core spinning solution, and using aluminum foil as receiving screen, where the core solution is propelled by its own gravity, where outer layer solution uses propeller to adjust the advancement rate, and at the same time, adjusting the receiving distance by adjusting the height of the lifting platform, and adjusting the voltage to perform electrospinning to obtain coaxial fiber; and (4) processing the coaxial fiber obtained in the step (3) into adsorption column, and obtaining graphene oxide/polyethersulfone graphene fiber composite adsorbent. USE - The adsorbent is useful for sewage treatment (claimed). ADVANTAGE - The adsorbent: can effectively avoids problem of secondary pollution caused by dispersion of graphene oxide in water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the graphene fiber composite adsorbent is prepared by above mentioned method.