▎ 摘　　要

NOVELTY - Preparation of aperture controllable three-dimensional graphene comprises cooling graphite powder, adding concentrated sulfuric acid and sodium nitrate, stirring for 5-15 minutes, reacting, adding potassium permanganate, heating to 40-60 degrees C, adding deionized water, reacting, cooling, centrifuging, washing, dissolving, filtering, soaking in polymethyl methacrylate, drying, adding hydroiodic acid, reacting for 0.5-3 hours, washing with deionized water, soaking ammonium persulfate solution, dissolving, cleaning, drying, purging, heating at 300-500 degrees C for 0.5-3 hours and cooling. USE - Method for preparing aperture controllable three-dimensional graphene (claimed). ADVANTAGE - The graphene has good absorbing property and conductivity.