▎ 摘　　要

NOVELTY - A graphene solution is prepared by mixing graphite powder and hydrogen peroxide at a mass ratio of 1:2-5; placing cobalt-60 into chamber to produce gamma -rays with intensity of 0.03-0.1 KGY, 0.2-2.5 KGY, and 0.01-0.03 KGY, respectively for 1-2 hours, 2-4 hours and 1-2 hours to obtain graphene suspension; adding the graphene suspension with formaldehyde, ethanol, phenol, aniline, or diethylenetriamine at a mass ratio of 3:1; processing the mixture with cobalt-60 for 0 5-1 hour, reacting at 10-250 kHz ultrasonic oscillating action for 2 hours, and obtaining product. USE - Method for preparation of graphene solution (claimed). ADVANTAGE - The method is simple to operate, safe and clean, and suitable for large-scale production.