▎ 摘　　要

NOVELTY - A three-dimensional structure reduced graphene oxide/ferroferric oxide absorbent hydrogel composite is prepared by dissolving graphene oxide in water, ultrasonically dispersing evenly to obtain graphene oxide solution, adding ascorbic acid aqueous solution in graphene oxide under magnetic stirring, dissolving completely to obtain mixed solution, performing co-precipitation process to prepare ferroferric oxide nanoparticle under magnetic stirring, dispersing in mixed solution to obtain reaction solution, placing reaction solution in beaker, and covering with plastic wrap. USE - Preparation of reduced graphene oxide/ferroferric oxide absorbent hydrogel composite (claimed). ADVANTAGE - Preparation process is simple, fast, and low cost, and product has increased permeability, excellent electromagnetic microwave absorption property, meet microwave absorption characteristics, and high strength. DETAILED DESCRIPTION - A three-dimensional structure reduced graphene oxide/ferroferric oxide absorbent hydrogel composite is prepared by dissolving graphene oxide in water, ultrasonically dispersing evenly to obtain graphene oxide solution, adding ascorbic acid aqueous solution in graphene oxide under magnetic stirring, dissolving completely to obtain mixed solution, performing co-precipitation process to prepare ferroferric oxide nanoparticle under magnetic stirring, dispersing in mixed solution to obtain reaction solution, placing reaction solution in beaker, covering with plastic wrap, standing at room temperature, collecting reaction product, freezing, and drying. DESCRIPTION OF DRAWING(S) - The drawing shows a graph of X-ray diffraction pattern for preparation of three-dimensional structure reduced graphene oxide/ferroferric oxide absorbent hydrogel composite.