▎ 摘　　要

NOVELTY - Preparing functional nanocomposite hydrogel involves mixing alcohol solution of graphene oxide with acetonitrile to obtain suspension, adding ammonia-water (NH3-H2O) to the suspension at room temperature, stirring, slowly adding alcohol solution of iron acetylacetonate to the obtained solution, stirring, maintaining obtained suspension at 50-80 degrees C for 10-12 hours to pre-grow amorphous iron oxide nanoparticles on the surface of the graphene oxide. The obtained material is washed with ethanol, centrifuged, and the obtained precipitate is redispersed in distilled water to obtain an oxide oxide dispersion. The calcium nitrate, acrylamide monomer, monobromoacetic acid and ammonium persulfate is dissolved in the aforementioned graphene oxide dispersion. The mixture is degassed, placed in a container, and dried in an oven to obtain an iron oxide/graphene oxide/polyacrylamide hydrogel (PAM). USE - Method for preparing functional nanocomposite hydrogel used for degrading organic contaminants, where organic contaminant is an organic dye (claimed). ADVANTAGE - The method enables to prepare functional nanocomposite hydrogel which has high mechanical strength, high photo-Fenton activity and good adsorption performance.