▎ 摘　　要

NOVELTY - Preparing graphene hollow tube comprises (i) uniformly mixing and stirring ethyl orthosilicate, absolute ethanol, hydrochloric acid, dimethylformamide, dimethyl sulfoxide and polyvinylpyrrolidone, obtaining a spinning precursor solution, forming nanofibers using electrostatic spinning method, heating to remove organic components to obtain a silicon dioxide fibers, and (ii) placing the silicon dioxide fibers in a tubular furnace, processing at 800 degrees C for 1 hour in air, growing graphene in a hydrogen, argon and methane atmosphere by using chemical vapor deposition (CVD) method to form a silicon dioxide/graphene core-shell structure, placing silicon dioxide/graphene core-shell structure in a graphene dispersion liquid solvent and stirring, thickening the graphene layer and silicon dioxide, and etching silicon dioxide using hydrofluoric acid to obtain a graphene hollow tube. USE - The method is useful for preparing graphene hollow tube. ADVANTAGE - The graphene hollow tube: is much larger than that of the carbon nanotube, has better conductivity, increase the thickness of the outer graphene by graphene sheet superposition process, and increases the elasticity and toughness of the composition material.