▎ 摘　　要

NOVELTY - Hydrogel material comprises hydrogel monomer, solvent, initiator, auxiliary initiator, and porous graphene oxide. USE - Used as hydrogel material. ADVANTAGE - The method: utilizes porous graphene oxide, which improves the mechanical performance of the material and allows high molecular chain to pass through the hole; and has simple technique, high product quality, and low production cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing hydrogel material by in-situ polymerization method under inert gas atmosphere, comprising (i) dissolving porous graphene oxide in solvent and ultrasonically dispersing to uniformity, (ii) adding hydrogel monomer into the solution prepared in step (i), and stirring uniformly until completely dissolve, then adding initiator and auxiliary initiator, stirring and mixing evenly, and (iii) polymerizing the solution prepared in step (ii), then reacting the sample at -20 degrees C to 80 degrees C for 24-72 hours, and washing.