▎ 摘　　要

NOVELTY - A microporous support having a porous graphene (1-1) composite material comprises a single graphene layer (1) which is provided on a polymeric film (2). The graphene nanohole is provided on the tapered hole (2-1) of the polymeric film and overlapped. USE - Microporous support. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of support comprising: (A) transferring a single graphene layer to the polymeric thin film; (B) using heavy ion accelerator for irradiating the composite material, where the heavy ions energy are 1-100 MeV/u, and radiation doses are greater than 1 ion/sample; and (C) single-side etching of the composite material into the etching groove, etching the polymer film side, and preventing the liquid on the other side to obtain a tapered hole on one surface chemical etching on the side of the polymeric film. DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of the microporous support. Single graphene layer (1) Graphene (1-1) Polymeric film (2) Tapered hole (2-1)