▎ 摘　　要

NOVELTY - Preparing zinc oxide nanorod ternary composite material involves removing spongy portion pomelo peel, drying pomelo peel, grinding into powder, sieving, and carbonizing in a protective atmosphere, soaking the carbonized product in an alkaline solution, performing heat-treatment, cooling, washing, drying to obtain biochar, dispersing the obtained biochar in a solvent, adding zinc acetate, an alkaline reagent, polyethylene glycol and graphene oxide, mixing uniformly, putting into an autoclave, heating the reaction, cooling to room temperature, filtering, and washing to collect the solid product to obtain the zinc oxide nanorod ternary composite material. USE - Method for preparing zinc oxide nanorod ternary composite material used for degrading tetracycline hydrochloride (claimed). ADVANTAGE - The prepared zinc oxide nanorod ternary composite material has good photocatalytic effect on tetracycline hydrochloride, and is mixing with tetracycline hydrochloride solution, dark adsorption for 40 minutes, irradiating under 75 watt mercury lamp for 80 minutes, the tetracycline degradation efficiency reached 99.24%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an application method of zinc oxide nanorod ternary composite material, which involves: (a)adding zinc oxide nanorod ternary composite material powder to the tetracycline hydrochloride solution at a dosage of 0.3 g/L; (b)carrying out dark adsorption for 40 minutes;(c)irradiating under 75 watt mercury lamp for 80 minutes, the degradation efficiency of tetracycline is greater than or equal to 99.24%. DESCRIPTION OF DRAWING(S) - The drawing shows an X-ray diffraction pattern of the prepared zinc oxide nanorod ternary composite material.