▎ 摘　　要

NOVELTY - Preparing graphene involves mixing graphite raw material and bulking agent in a weight ratio of 10:0.5-1 and adding 1-5 wt.% nonionic agent in a weight ratio of 1:1 to obtain mixture A. The obtained mixture A is added with quartz tube and the tubular heating furnace is preheated at 700-800 degrees C. The mixture in tubular furnace is heated for 10 seconds, and then cooled naturally. The process is repeated and heated for 2 minutes to obtain graphene. USE - Method for preparing graphene (claimed).