▎ 摘　　要

NOVELTY - Preparing large-scale graphene oxide class involves adding graphene oxide and the catalyst to water respectively, and obtaining the solution after stirring uniformly, adding a pH regulator to the solution to adjust the pH value. The solution after adjusting the pH value is illuminated, and formed a precipitate, then filtration of the precipitate from the solution. The filtered filter residue is washed and dried to obtain large-sized graphene oxide-like. USE - Method for preparing large-scale graphene oxide class. ADVANTAGE - The prepared graphene oxide has a large size, and the method has the advantages of easy industrialization, environmental friendliness, low cost and single surface group.