▎ 摘　　要

NOVELTY - Air purifying net comprises substrate and purifying material attached to surface of the substrate and/or penetrating into the substrate, where the substrate comprises graphene, polyethylene terephthalate, ultra-high molecular weight polyethylene, porous basalt fiber and carbon fiber, and the purifying material comprises pseudoboehmite, activated carbon honeycomb monolith, acid-modified diatomite, hydroxylamine chloride, hexamethylenetetramine, cobalt oxide, humic acid, nano-titanium dioxide and sterile insect repellent particles. USE - The air purifying net is useful for absorbing harmful microbes and dust in air, and repelling insects. ADVANTAGE - The air purifying net improves indoor air quality during haze weather. DETAILED DESCRIPTION - Air purifying net comprises substrate and purifying material attached to surface of the substrate and/or penetrating into the substrate, where the substrate comprises 10-12 pts. wt. graphene, 20-25 pts. wt. polyethylene terephthalate, 25-30 pts. wt. ultra-high molecular weight polyethylene, 30-35 pts. wt. porous basalt fiber and 25-30 pts. wt. carbon fiber, the purifying material comprises 20-23 pts. wt. pseudoboehmite, 25-28 pts. wt. activated carbon honeycomb monolith, 15-20 pts. wt. acid-modified diatomite, 5-8 pts. wt. hydroxylamine chloride, 8-10 pts. wt. hexamethylenetetramine, 6-8 pts. wt. cobalt oxide, 10-12 pts. wt. humic acid, 10-15 pts. wt. nano-titanium dioxide and 15-20 pts. wt. sterile insect repellent particles, the sterile insect repellent particles are prepared by adding 20 pts. wt. water, 5 pts. wt. acaricide, 8 pts. wt. antibacterial agent and 7 pts. wt. insect repellent into reaction vessel, stirring mixture at room temperature and 200-250 revolutions per minute for 30-50 minutes, adding 8 pts. wt. beta -cyclodextrin and 15 pts. wt. water, stirring solution at 65 degrees C and 200 revolutions per minute for 50 minutes, and naturally cooling solution for 50 minutes, the acid-modified diatomite is prepared by adding 10 pts. wt. diatomite and 20 pts. wt. of 30 %mass nitric acid solution, stirring solution at 2000-2500 revolutions per minute for 1.5-2 hours, ultrasonically dispersing solution at 25 kHz and 35 degrees C for 40-60 minutes, filtering solution, washing filtrate using water and drying product at 180-200 degrees C, the acaricide comprises benzyl benzoate and diethyl phthalate in a weight ratio of 1:1.5, the antibacterial agent comprises anise oil and tea tree oil in a weight ratio of 1:2, and the insect repellent comprises meperfluthrin and esbiothrin in a weight ratio of 1:1.2. An INDEPENDENT CLAIM is included for method for preparing air purifying net, which involves (a) weighing substrate materials, uniformly mixing and heating mixture at 280-300 degrees C for 45-70 minutes, repeating heating process for 3-4 times, sieving mixture using 25-35 mesh sieve, and weaving mixture at 200 degrees C, (b) weighing purifying materials, adding water and sodium silicate, stirring solution at 3000 revolutions per minute for 2 hours, ultrasonically dispersing solution at 30 kHz and 35 degrees C for 40 minutes, and precipitating solution for 6 hours, and (c) adding adhesive and soaking products obtained in steps (a) and (b) in soaking solution for 20 hours, and drying product at 150-180 degrees C.