▎ 摘　　要

NOVELTY - Preparation of graphene/hydroxyapatite composite, involves ultrasonically dispersing graphene oxide in deionized water for 1-1.5 hours to obtain 2 g/L graphene oxide dispersion, dissolving calcium chloride dihydrate in deionized water to obtain 0.067 mol/L calcium chloride solution, dissolving diammonium hydrogen phosphate in deionized water to obtain 0.02 mol/L diammonium hydrogen phosphate solution, mixing the calcium chloride solution and graphene oxide dispersion, adjusting pH to 9, adding the diammonium hydrogen phosphate solution, adjusting pH to 10.5, transferring the mixed solution to a hydrothermal reaction kettle, reacting, centrifuging, washing, and vacuum drying. USE - Preparation of graphene/hydroxyapatite composite for treating uranium-containing wastewater (claimed). ADVANTAGE - The method enables simple mass preparation of composite having high specific surface area, rich microporous structure, and several oxygen groups on the surface. The obtained composite efficiently removes uranium from wastewater.