▎ 摘　　要

NOVELTY - Titanium dioxide nanorods/multilayer graphene composite material is obtained by forming a nanorod morphology by titanium dioxide crystals, uniformly distributing nanorods on surface of multilayer graphene, overlapping the nanorods and forming pores, and combining the titanium dioxide nanorods and multilayer graphene by molecular force, where the titanium dioxide crystal is rutile titanium dioxide, the aspect ratio of the nanorods is 3-7, the diameter is less than 100 nm and the length is less than 500 nm. USE - The titanium dioxide nanorods/multilayer graphene composite material is used for lithium ion battery anode material, lithium sulfur battery cathode material and photocatalysis. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the titanium dioxide nanorods/multilayer graphene composite material, which involves (i) measuring dimethyl formamide and deionized water at a volume ratio of 4:1 and uniformly mixing as a mixed solvent (A), (ii) taking expanded graphite and adding to the mixed solvent (A) to obtain a multi-layer graphene dispersion by ultrasound, where the concentration of the expanded graphite relative to the solvent (A) is 2-4 mg/ml, (iii) measuring nitric acid and deionized water, and making a 2 mol/l dilute nitric acid solution as a solution (B), (iv) taking titanium powder and adding to the graphene dispersion, where the particle size of the titanium powder is 10-50 mu m, measuring 36% concentration of hydrochloric acid and solution (B) into the graphene dispersion, and placing at 90 degrees C in water bath for 36-60 hours for stirring reaction at a speed of 300 rpm, where the concentration of titanium powder relative to solution (A) is 4-6 mg/ml, the volume ratio of hydrochloric acid to solution (A) is 1.2:1-1.4:1, and the volume ratio of the solution (B) to solution (A) is 0.02:1-0.03:1, and (v) collecting the reaction product by centrifugal cleaning after cooling, and drying after centrifugal cleaning.