▎ 摘　　要

NOVELTY - Method for preparing porous controllable graphene, involves (i) mixing precursor with graphene solution in a mass ratio of 1:1-50:1 to obtain a dispersion, (ii) performing rapid freeze-drying treatment onto the dispersion for 5-10 minutes to obtain sample (a), (iii) freeze-drying the sample (a) to obtain a composite, (iv) subjecting the composite to a microwave combustion treatment to obtain sample (b), (v) washing sample (b) and drying to obtain porous graphene. USE - Method for preparing porous controllable graphene for use in energy conversion application, photocatalytic application, environmental protection application, and electronic equipment. ADVANTAGE - The prepared porous graphene has main pore diameter of 5- 200 nm, and excellent conductivity. The modification of the graphene is achieved quickly and simply.