▎ 摘　　要

NOVELTY - Durable anti-virus and antibacterial liquid comprises nano silver, modified graphene, nano titanium dioxide and quaternary ammonium salt. The preparation method includes adding 70-80 wt.% water, 10-15 wt.% modified graphene nano-silver and 10-15 wt.% modified graphene into the reactor. The reactor is heated and stirred the mixed solution at a uniform speed. The nano titanium dioxide is added continuous during the stirring process. The heating temperature is lowered and the froth is continuously skimmed off until the froth disappears completely after the froth appears on the upper end of the solution. The mixed solution from which the floating foam is taken out is allowed to kept, and the quaternary ammonium salt and stabilizer are added 3 times every 1-3 hours during the standing process. The mixture is stirred at a constant speed for 10 minutes. The ultrasonic dispersion of the prepared solution is carried out to obtain an antibacterial liquid. USE - Durable anti-virus and antibacterial liquid. ADVANTAGE - The durable anti-virus and antibacterial liquid is safe, environment friendly, effective and durable, has no biological toxicity, no harm to human health and the environment and has no drug resistance, replace existing disinfection products based on strong oxidants or alcohol, does not contain strong oxidants, does not burn or explode, and does not pollute the environment. DETAILED DESCRIPTION - Durable anti-virus and antibacterial liquid comprises nano silver, modified graphene, nano titanium dioxide and quaternary ammonium salt. The preparation method includes adding 70-80 wt.% water, 10-15 wt.% modified graphene nano-silver and 10-15 wt.% modified graphene into the reactor. The reactor is heated and stirred the mixed solution at a uniform speed. The nano titanium dioxide is added continuous during the stirring process. The heating temperature is lowered and the froth is continuously skimmed off until the froth disappears completely after the froth appears on the upper end of the solution. The mixed solution from which the floating foam is taken out is allowed to kept, and the quaternary ammonium salt and stabilizer are added 3 times every 1-3 hours during the standing process. The mixture is stirred at a constant speed for 10 minutes. The ultrasonic dispersion of the prepared solution is carried out to obtain an antibacterial liquid. The regulator is added to the antibacterial liquid and mixed it to adjust the pH to greater than 7.5. The pH-adjusted antibacterial liquid is mixed with water in proportion to obtain a durable anti-virus and antibacterial liquid.