▎ 摘　　要

NOVELTY - Hydrophilic graphene and zinc oxide nanocomposite material comprises the hydrophilic graphene which is blending with zinc acetate and ammonia water in the presence or absence of ferric chloride and ammonium ferrous sulfate, precursor is obtained by co precipitation in an aqueous phase with a pH value of 11, nanocomposite of hydrophilic graphene and zinc oxide obtained by calcination in a tube furnace. USE - Used as hydrophilic graphene and zinc oxide nanocomposite material. ADVANTAGE - The material: is economical, environmentally friendly and convenient for recycling. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing hydrophilic graphene and zinc oxide nanocomposite material, comprising (i) dissolving hydrophilic graphene in deionized water to obtain hydrophilic graphene solution having a concentration of 0.5 mg/mL, the hydrophilic graphene is a graphene having a patent number of 201310296390.7, graphene is preparing by dispersing graphene oxide in water, adding phenylhydrazine containing a sulfonic acid group, ultra sonicating through an ultrasonic scrubber for 12 hours, and then reacting at 85 degrees C for 12 hours to obtain a black water-soluble solution, Filtering to remove insoluble impurities, the mother liquor can be concentrating under pressure or rotary evaporator under reduced pressure, and removing the excess benzene group which containing sulfonic acid groups, and then vacuum drying at 60 degrees C to obtain hydrophilic graphene, (ii) adding ammonia water with a mass fraction of 25% to the step (i) the mass ratio of ammonia,zinc acetate and hydrophilic grapheme is 86:138:1 -2.5, the hydrophilic graphene solution is further adding to zinc acetate solution having a concentration of 0.23 g/ml, and reacting for 2 hours. Preparing precursor suspension of hydrophilic graphene-zinc oxide, the mass ratio of ferric chloride, ammonium ferrous sulfate, hydrophilic grapheme and ammonia water is 1.16-4.65: 0.85-3.37: 1:144, iron chloride and ammonium ferric sulfate are sequentially adding to the hydrophilic graphene solution obtained in step (i), respectively, and heating at 85 degrees C under nitrogen (N2) protection, adding ammonia water with a mass fraction of 25%, and reacting for 1 hour to obtain a hydrophilic graphene-ferric oxide pre-suspension, the mass ratio of zinc acetate, ammonia water is 1:1.64, adding zinc acetate solution having a concentration of 0.23 g/ml to hydrophilic graphene-ferric oxide pre-suspension, reacting for 2 hours, to obtain hydrophilic graphene-ferric oxide and zinc oxide, (iii) keeping the suspension obtained in the step (ii) and removing the supernatant, and washing with deionized water and ethanol until the suspension is weakly alkaline, centrifuging and removing the supernatant, and the obtained solid is drying at 60 degrees C to obtain grayish white solid, and (iv) placing the grayish white solid obtained in the step (iii) in the tube furnace under nitrogen for 2 hours at 300 degrees C.