▎ 摘　　要

NOVELTY - The production of antibacterial material involves adding sodium nitrate and concentrated sulfuric acid, cooling, adding dried graphite powder, potassium permanganate, distilled water, deionized water and hydrogen peroxide, washing with hydrochloric acid, filtering, washing filtrate with deionized water, heating, drying, obtaining graphite oxide powder, adding to deionized water, centrifuging, obtaining graphene oxide dispersion liquid, adding to silver nitrate to obtain mixed solution, evaporating, obtaining graphite oxyalkylene, providing into solution containing reducing agent. USE - Production method of graphene/silver composite antibacterial material (claimed). ADVANTAGE - The graphene/silver composite antibacterial material is used easily and has excellent antibacterial activity. The method enables the production of material with excellent process control. DETAILED DESCRIPTION - DETAILED DESCRIPTION ? The production method of graphene/silver composite antibacterial material involves adding 2-4 g sodium nitrate in 500 ml four burn flask, adding 98% of 100-150 ml concentrated sulfuric acid, ice-cooling, reacting at the temperature less than 5 degrees C, adding 5 g dried graphite powder, stirring, mixing, vigorously stirring, slowly adding 10-20 g potassium permanganate, controlling the reaction temperature of the mixture to not exceeding 20 degrees C, completing addition, increasing the temperature of reaction mixture to 35/|3 degrees C, reacting for 100-180 minutes, completing the reaction, increasing the reaction mixture temperature to 98 degrees C, vigorously stirring, dripping 200-250 ml distilled water, adding, controlling the reaction temperature to 98 degrees C, continuously stirring for 10-20 minutes, adding 600-800 ml deionized water to terminate the reaction, adding 30% of 30-50 ml hydrogen peroxide to remove unreacted potassium permanganate, converting the solution from brown-black to bright yellow, filtering, while hot, washing with 5% hydrochloric acid with metal ion, washing the filtrate with deionized water until sulfate-barium chloride solution is not detected, heating at 50-70 degrees C in an oven, drying, obtaining graphite oxide powder, adding 1 g graphite oxide powder to 100-200 ml deionized water, reacting for 30-45 minutes at 300-500 W power ultrasound and at the speed of 8000-10000 rpm, centrifuging for 5-8 minutes, taking out the precipitate, obtaining graphene oxide dispersion liquid, adding the resulting graphene oxide dispersion liquid to silver nitrate to obtain a mixed solution, evaporating the mixed solution at 60-100 degrees C for 10-18 hours, obtaining adsorbed silver ions graphite oxyalkylene, providing silver ions adsorbed graphene oxide into a solution containing reducing agent for reduction treatment.