▎ 摘　　要

NOVELTY - Preparation of graphene oxide and graphene hollow fiber comprises putting outer layer and inner layer solutions in outer and inner layer coaxial needles, injecting outer layer solution to a receiving solution, and drying to obtain graphene oxide hollow fiber; and reducing to obtain graphene hollow fiber. The outer layer solution is 20-25 mg/ml luteinizing graphene oxide. The inner layer solution and receiving solution are greater than or equal to 3 mol/L methanol solution of potassium chloride. The inner layer solution flow rate is 6 ml/minute. The outer layer solution flow rate is greater than or equal to 0.1 ml/second. USE - Method for preparing graphene oxide and graphene hollow fiber (claimed). ADVANTAGE - The method is simple, low cost, and has no need for post-process and impurity removal.