▎ 摘　　要

NOVELTY - Preparing porous graphene oxide material comprises: (a) preparing graphene oxide sheets from graphite at 40-170 degrees C; (b) providing graphene oxide suspension containing the sheets; (c) heating the suspension with base at 25-300 degrees C for 0.1-48 hours to obtain base-treated graphene oxide sheets; and (d) heating mixture of base-treated graphene oxide sheets and acid at 25-309 degrees C for 0.1-48 hours to get porous graphene oxide material, where weight ratio of base to the sheets and acid to the sheets each has 1:1-50:1, and base in suspension and acid in mixture each has concentration of 0.01-50 N. USE - The method is useful for preparing porous graphene oxide material that is used as catalyst and in oxidation, a reduction, Suzuki coupling, oxygen reduction or an oxidation-reduction tandem reactions (all claimed). ADVANTAGE - The method provides graphene oxide material that is highly magnetic and highly catalytic. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) the porous graphene oxide material having a pore size of 0.2-100 nm, a pore volume of 0.01-5 ml/g, a surface area of 20-2600 m2/g, a carbon/oxygen molar ratio of 2/1-10/1, and a acetate content of 0; and (2) a process of carrying a chemical reaction by agitating a reaction medium containing a reactant or reactants, and a catalyst that is the porous graphene oxide material, where the chemical reaction is an oxidation, a reduction, Suzuki coupling, oxygen reduction or an oxidation-reduction tandem reaction.