▎ 摘　　要

NOVELTY - Preparation of titanium dioxide-graphene oxide/ferronickel-layered double hydroxide composite material comprises weighing graphene oxide, adding into 100 mL deionized water, ultrasonically dispersing, adding nickel nitrate hexahydrate, ferric nitrate pentahydrate and urea, magnetically stirring at 90 degrees C for 2 hours, hydrothermally reacting, washing by deionized water, vacuum-drying, adding into 20 mL anhydrous ethanol, ultrasonically dispersing for 1 hour, adding butyl titanate, magnetically stirring, adding dropwise 10 mL deionized water and 15 mL anhydrous ethanol, ultrasonically processing for 2 hours, uniformly mixing, transferring solution into PTFE reaction kettle, hydrothermally reacting, aging for 24 hours, washing, drying, putting in muffle furnace, calcining, putting in deionized water, standing for 24 hours, and freeze-drying. USE - The method is for preparing titanium dioxide-graphene oxide/ferronickel-layered double hydroxide composite material used for sewage treatment (claimed). ADVANTAGE - The material has excellent adsorption performance, and can effectively remove heavy metal and organic pollutant in sewage. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope diagram of titanium dioxide-graphene oxide/ferronickel-layered double hydroxide composite material.