▎ 摘　　要

NOVELTY - Preparing sodium alginate-silver-carrying graphene composite film involves adding 100-300mg oxidized graphene sheet to 150-300mL distilled water, and dispersing the ultrasonic powder by adding 2g sodium polystyrene sulfate, stirring and dissolving to obtain mixture. The obtained mixture is mixed with 150-400L hydrazine hydrate, heating and the reaction is carried out at 100 degrees C for 24 hours, and filter and lyophilized to obtain reduced type oxidized graphene-polystyrene sodium sulfate complex. USE - Method for preparing sodium alginate-silver-carrying graphene composite film for promoting antibacterial and wound healing property for dressing (all claimed). ADVANTAGE - The method enables to prepare sodium alginate-silver-carrying graphene composite film, which has great clinical application potential, and is processed in simple manner. DETAILED DESCRIPTION - Preparing sodium alginate-silver-carrying graphene composite film involves adding 100-300mg oxidized graphene sheet to 150-300mL distilled water, and dispersing the ultrasonic powder by adding 2g sodium polystyrene sulfate, stirring and dissolving to obtain mixture. The obtained mixture is mixed with 150-400L hydrazine hydrate, heating and the reaction is carried out at 100 degrees C for 24 hours, and filter and lyophilized to obtain reduced type oxidized graphene-polystyrene sodium sulfate complex. The obtained reduced-type oxidized graphene-polystyrene sodium sulfate complex is mixed with 50-100mL water, mixing, and placing it in a single neck flask, and heating at 60 degrees C to obtain composite. The obtained composite is mixed with 5-10mL silver nitrate solution with the concentration of 0.02mol/L and poured into the flask at a rate of 0.5mL/hour and stirred at constant temperature for 10 hours to obtain solution. The obtained solution is centrifuged to obtain supernatant. The obtained supernatant is mixed with silver-containing graphene solution and 5-25mL sodium alginate solution in a concentration of 15-35mg/mL to obtain the desired product.