▎ 摘　　要

NOVELTY - Method for preparing nano-iron-molybdenum-graphene composite material, involves ultrasonically dispersing graphene oxide in water, adding iron salt, molybdenum salt and reducing agent, and reacting, where the mass ratio of iron element to graphene oxide in the iron salt is (0.1-5):1, and the mass ratio of molybdenum element to graphene oxide in the molybdenum salt is (0.1-5):1. USE - The method is useful for preparing nano-iron-molybdenum-graphene composite material which is used as an adsorbent material for adsorbing organic substances such as methylene blue, methylene orange, methyl red, solid green, rhodamine B, ethylamine, aniline, monomethylamine, monoethylamine, dimethylamine, diethylamine, trimethylamine, triethylamine, monopropylamine, dipropylamine, tripropylamine, isopropylamine, ethylenediamine, 1,2-propylenediamine, butylamine, octylamine, 1,4-butanediamine, 1,10-decanediamine, monoethanolamine, diethanolamine, triethanolamine, diphenylamine, propanolamine, reactive black 5, azure, phenol, bisphenol A, salicylic acid and/or p-toluenesulfonic acid or heavy metal ions such as manganese ions, copper ions, lead ions, zinc ions, chromium ions, cadmium ions, mercury ions, arsenic ions, cobalt ions and/or nickel ion in an aqueous solution system (all claimed). ADVANTAGE - The method has high reaction efficiency, large adsorption capacity and simple product separation process, and is simple to operate using easily available raw materials in an economical manner.