▎ 摘　　要

NOVELTY - Method for synthesizing reduced graphene oxide (RGO)/carbon nanotube (CNT)/hydroxyapatite (HA)/iron(II, III) oxide (Fe3O4) complex material involves dividing diionic surfactants equally into reactant I and reactant II, mixing reactant I and solvent I to obtain a surfactant solution, mixing multi-walled CNT and reactant II, grinding, adding to the surfactant solution to obtain a CNT dispersion, mixing the RGO and solvent II to obtain a mixed solution I, adding the CNT dispersion, reacting to obtain reaction solution I, adding ammonium dihydrogen phosphate solution to calcium nitrate solution to obtain mixed solution II, adding with hexahydrate ferrous ammonium sulfate solution, urea solution and alkaline solution to the reaction solution I to obtain a reaction solution II, adding disodium EDTA solution, polyethylene glycol 200 and hydrazine hydrate to obtain reaction solution III, performing hydrothermal reaction, subjecting to vacuum filtration, washing and drying to obtain product. USE - The method is useful for synthesizing RGO/CNT/HA/Fe3O4 complex material. DETAILED DESCRIPTION - Method for synthesizing reduced graphene oxide (RGO)/carbon nanotube (CNT)/hydroxyapatite (HA)/iron(II, III) oxide (Fe3O4) complex material involves (a) dividing diionic surfactants equally into reactant I and reactant II, (b) taking the reactant I and solvent I and mixing and stirring evenly to obtain a surfactant solution, (c) taking multi-walled CNT and the reactant II, mixing, grinding, and then adding to the surfactant solution to obtain a CNT dispersion, (d) taking the RGO and solvent II and mixing and stirring evenly to obtain a mixed solution I, (e) slowly adding the CNT dispersion to the mixed solution I and performing electrostatic self-assembly reaction to obtain reaction solution I, (f) adding ammonium dihydrogen phosphate solution in a dropwise manner to calcium nitrate solution to obtain mixed solution II, (g) sequentially adding hexahydrate ferrous ammonium sulfate solution, mixed solution II, urea solution and alkaline solution to the reaction solution I to obtain a reaction solution II with pH 11, (h) sequentially adding the disodium EDTA solution, polyethylene glycol 200 and hydrazine hydrate to the reaction solution II to obtain reaction solution III, (i) subjecting the reaction solution III to undergo a hydrothermal reaction to obtain an intermediate product, and (j) subjecting the intermediate product to vacuum filtration, washing and performing vacuum drying treatment to obtain product.