▎ 摘　　要

NOVELTY - Preparing biomass-based vertical graphene in batches involves mixing raw biomass with water for hydrothermal reaction, and washing and drying to obtain hydrothermal products. The hydrothermal product is completely mixed with the vertical graphene generator and dried, calcined, washed with dilute acid and deionized water after cooling, and dried to obtain vertical graphene, where vertical graphene generator is selected from potassium carbonate, sodium carbonate, sodium bicarbonate, potassium bicarbonate, sodium oxalate, and potassium oxalate. USE - Method for preparing biomass-based vertical graphene in batches for use in lithium battery, super capacitor, fuel cell and graphite alkenyl material water and air purifying, in the fields of electrochemical energy storage, sensing, adsorption and catalytic degradation. ADVANTAGE - The method has the advantages of simple process, low raw material cost, no need to use expensive equipment, mild reaction, green, high efficiency, converts raw biomass into high value-added new carbon nanomaterials in large quantities, easy to realize industrialization, and has excellent economical and social benefits. The vertical graphene has low sheet curvature, has vertical open channels, and has excellent chemical stability, and is applied to the fields of electrochemical energy storage, sensing, adsorption and catalytic degradation.