▎ 摘　　要

NOVELTY - Preparing phosphorus-doped graphene phosphorus composite catalytic material, comprises (i) mixing graphite powder, 98 wt.% concentrated sulfuric acid and sodium nitrate, slowly adding potassium permanganate, reacting at 0-5 degrees C for 20-40 minutes, heating and reacting at 30-40 degrees C for 25-35 minutes, stirring at a constant speed during the holding reaction, slowly adding deionized water, reacting at 90-96 degrees C for 30-60 minutes, and observing that the color changes from blue-black to brown-yellow to complete the reaction, (ii) slowly adding 28-32% hydrogen peroxide to the material, centrifuging, and washing with anhydrous ethanol at 3000-4000 revolutions/minute (rpm) for multiple times to obtain a precipitate, (iii) placing the material and triphenylphosphine in absolute ethanol, ultrasonically dispersing and peeling for 1-1.5 hours, naturally air drying, and vacuum drying at 50-70 degrees C for 6-15 hours, and (iv) calcining the material at 300-700 degrees C for 0.5-2 hours under a nitrogen atmosphere. USE - The catalytic material is useful for preparing electrode in electrocatalytic oxidation method (claimed). ADVANTAGE - The catalytic material: can be applied to the anode material of electrocatalytic oxidation; generates a large amount of free radicals; and degrades refractory organic substances in water.