▎ 摘　　要

NOVELTY - The preparation of antibacterial photocatalytic material, involves (1) dissolving titanium tetrachloride in distilled water, dripping aqueous ammonia with stirring at room temperature, (2) centrifuging, washing precipitate, adding hydrogen peroxide and stirring precipitate to form sol, (3) adding deionized water, (4) hydrothermally reacting and cooling to obtain titanium dioxide sol, (5) mixing titanium dioxide sol, aqueous solution of graphene oxide and aqueous solution of antimony pentoxide, magnetically stirring for 30-40 minutes, (6) adding silver nitrate and magnetically stirring, (7) centrifuging and concentrating, (8) ultrasonically dispersing for 30-40 minutes, adding 4-5 pts. wt. sodium borohydride and reacting for 2-3 minutes, (9) adding 20-25 pts. wt. ascorbic acid and 3-5 pts. wt. zinc oxide microspheres, ultrasonically reacting for 2 minutes, sealing and placing in oven, heating at 95 degrees C for 4 hours and drying using supercritical carbon dioxide. USE - Preparation of antibacterial photocatalytic material. ADVANTAGE - The method enables preparation of antibacterial photocatalytic material ensuring excellent photocatalytic effect and high recycling rate. DETAILED DESCRIPTION - The preparation of antibacterial photocatalytic material, involves (1) dissolving titanium tetrachloride in distilled water to obtain 1.0 mol/L solution, dripping 10% aqueous ammonia with stirring at room temperature until pH of solution is 8.8-9.2, (2) centrifuging at 6000-8000 rpm, washing precipitate, adding hydrogen peroxide and stirring precipitate to form sol, (3) adding deionized water, the mass ratio of sol and deionized water is 1:5, (4) adding to hydrothermal reaction vessel, hydrothermally reacting at 120 degrees C for 24 hours and cooling to room temperature to obtain titanium dioxide sol, (5) mixing 5-7 pts. wt. titanium dioxide sol, 60-65 pts. wt. 0.33 mg/mL aqueous solution of graphene oxide and 10-15 pts. wt. 0.3 mg/mL aqueous solution of antimony pentoxide, magnetically stirring for 30-40 minutes, (6) adding 6-8 pts. wt. silver nitrate and magnetically stirring for 30-40 minutes, (7) centrifuging at 10000 rpm for 25-30 minutes and concentrating, (8) ultrasonically dispersing for 30-40 minutes, adding 4-5 pts. wt. sodium borohydride and reacting for 2-3 minutes, (9) adding 20-25 pts. wt. ascorbic acid and 3-5 pts. wt. zinc oxide microspheres, ultrasonically reacting for 2 minutes, sealing and placing in oven, heating at 95 degrees C for 4 hours and drying using supercritical carbon dioxide.