▎ 摘　　要

NOVELTY - Preparation of graphene oxide felt involves (1) adding 100-200 pts. wt. zinc acetate to ethanol and stirring to dissolve, (2) slowly adding 5-40 pts. wt. graphite oxide hydrosol to the solution obtained in step (1), and slowly stirring to form a uniform flocculent suspension, (3) setting up a suction filter, pouring the suspension into the filter, suction filtering, slowly adding ethanol during suction filtering, removing impurity, rinsing, and removing suction filtration film attached to graphene oxide felt, and (4) drying the film in air, and easily peeling off. USE - Preparation of graphene oxide felt used for microwave absorption (all claimed). ADVANTAGE - The method is energy-saving, environmentally-friendly and good for large-scale industrial production.