▎ 摘　　要

NOVELTY - Preparing graphene oxide comprises e.g.: chilling a reaction vessel to a predetermined chill temperature; intermixing a quantity of at least two acid reactants to form an intermixed acid mixture; chilling the intermixed acid mixture to the predetermined chill temperature; intermixing a quantity of potassium permanganate and a quantity of graphite; chilling the intermixed potassium permanganate and graphite to the predetermined chill temperature; placing the chilled intermixed acid mixture into the chilled reaction vessel and initiating a low speed agitation of the acid mixture; adding the chilled intermixed potassium permanganate and graphite to the chilled reaction vessel to form a graphite suspension; and continuing agitation of the reaction vessel for a predetermined period of cool agitation while maintaining the reaction vessel within a predetermined cool temperature profile. USE - The method is useful for preparing graphene oxide ADVANTAGE - The method provides graphene oxide in an efficient, scalable and repeatable manner. DETAILED DESCRIPTION - Preparing graphene oxide comprises: chilling a reaction vessel to a predetermined chill temperature; intermixing a quantity of at least two acid reactants to form an intermixed acid mixture; chilling the intermixed acid mixture to the predetermined chill temperature; intermixing a quantity of potassium permanganate and a quantity of graphite; chilling the intermixed potassium permanganate and graphite to the predetermined chill temperature; placing the chilled intermixed acid mixture into the chilled reaction vessel and initiating a low speed agitation of the acid mixture; adding the chilled intermixed potassium permanganate and graphite to the chilled reaction vessel to form a graphite suspension; continuing agitation of the reaction vessel for a predetermined period of cool agitation while maintaining the reaction vessel within a predetermined cool temperature profile; adding a first volume of warm distilled water during a first period of warm agitation while the graphite suspension is agitated; adding a second volume of distilled water during a second period of arm agitation while the graphite suspension is agitated; while agitating, cooling the graphite suspension to a predetermined pre-peroxide temperature; adding a predetermined amount of hydrogen peroxide to the reaction vessel; allowing contents of the reaction vessel to cool and settle over a settling period; and separating colloidal graphene oxide from reaction products within the vessel contents.