Silicon-zinc nano mesoporous inorganic antibacterial and preparation method thereof
An inorganic antibacterial agent and nano-mesoporous technology, applied in the field of nano-mesoporous inorganic antibacterial agent and its preparation, can solve the problems of reduced antibacterial activity, small loading, discoloration, etc., and achieve stable antibacterial performance, long-lasting antibacterial effect, and easy industrialization The effect of chemical production
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Embodiment 1
[0015] Dissolve 5.00 g of P123 in 161.7 mL of deionized water, add hydrochloric acid to make the pH of the solution lower than 2, stir until it settles, add 14.75 g of tetraethyl orthosilicate, 0.84 g of zinc chloride and 0.76 g of copper nitrate, and Stirring at 70°C for 72 hours, drying, and calcining at 550°C for 6 hours to obtain a mesoporous material. Marked as sample A, finally used for Escherichia coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 85:10:5).
Embodiment 2
[0017] Dissolve 4.50 grams of F104 in 445.5 mL of deionized water, add sulfuric acid to make the pH value of the solution lower than 2, stir until it settles, add 24.03 g of butyl orthosilicate, 1.43 g of zinc nitrate and 0.22 g of copper chloride, at 100 Stirring at ℃ for 36 hours, drying at 650 ℃ for 6 hours to obtain mesoporous materials. Marked as sample B, finally used for E. coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 90:8:2).
Embodiment 3
[0019] Dissolve 3 grams of F65 in 597mL of deionized water, add nitric acid to make the pH of the solution lower than 2, stir until it settles, add 10.15g of methyl orthosilicate, 1.69g of zinc acetate and 0.79g of copper sulfate pentahydrate, at 120 Stir at ℃ for 1 day, after drying, calcinate at 700℃ for 6h to obtain mesoporous bioglass. Marked as sample C, finally used for Escherichia coli antibacterial experiment. (Silicon dioxide: zinc oxide: copper oxide is 80:15:5).
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