▎ 摘　　要

NOVELTY - The method involves peeling the outer layer of pomelo and taking the inner pulp as raw material. The sodium bicarbonate is added into ethanol and stirred continuously until the solution is dissolved. The outer layer of pomelo is soaked in solution and dried. The dried materials are placed in a corundum tube, and heated up with a tube furnace, and cooled down to room temperature to rinse with solvent ethanol and distilled water, and dried. USE - Method for preparing carbon material such as carbon nanotube, graphene, and graphite alkyne using grapefruit inner pulp as raw material, used in food processing industry, sewage treatment, waste gas treatment, energy storage and other field. ADVANTAGE - The process of for preparing carbon material using grapefruit inner pulp as raw material is performed easily and efficiently. The instrument cost used in the preparation process is reduced, and the preparation engineering is simple using chemical reagent without causing the pollution to effectively control the production cost with environment-friendly. The biomass activated carbon is prepared by effectively using the biomass waste in daily life (the inner pulp of pomelo peel) to realize the recycling of materials. The temperature is raised to 725℃ in the carbonization process for energy-saving effect.