Inorganic nanometer-sized mesoporous antibacterial agent and preparation method thereof
A technology of inorganic nanometer and antibacterial agent, applied in the fields of botanical equipment and methods, biocides, disinfectants, etc., can solve the problem that the loading percentage of antibacterial substances is not particularly high, and achieve the effect of simple preparation process
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Embodiment 1
[0020] 1) 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 12.50 g of tetraethyl orthosilicate, 0.73 g of triethyl phosphate and 8.50 g of Ca (NO 3 ) 2 4H 2 O, stirred at 70°C for 72 hours, dried, and calcined at 550°C for 6 hours to obtain an inorganic nano-mesoporous material. (Silicon dioxide: calcium oxide: phosphorus pentoxide is 60:36:4).
[0021] 2) Amino-modify the prepared nano-mesoporous material, amino-modification process route: disperse each gram of inorganic mesoporous material in 100ml deionized water toluene and 1ml KH550, reflux in 80°C water bath reflux device for 5 hours, Then use a suction filter bottle with a pore size of 0.22 micron microporous membrane to filter and clean, and place the cleaned bioactive glass in a vacuum oven at 130°C for 12 hours to obtain an amino-modified inorganic nanometer mesoporous material;
[0022] 3) Take 5 g of the amino-m...
Embodiment 2
[0025] 1) Dissolve 4.50 grams of F104 in 445.5 mL of deionized water, add sulfuric acid to make the pH of the solution lower than 2, stir until it settles, add 19.23 g of butyl orthosilicate, 2.81 g of trimethyl phosphate and 4.44 g of CaCl2, Stir at 100° C. for 36 hours, and after drying, calcinate at 650° C. for 6 hours to obtain an inorganic nano-mesoporous material. (silicon dioxide: calcium oxide: phosphorus pentoxide is 60:40:10).
[0026] 2) Carry out mercapto-grafting of the prepared nano-mesoporous material; process route of mercapto-modification: disperse each gram of inorganic mesoporous material in 10ml of 0.1mol / L cysteamine hydrochloride solution, and treat at 80°C 24 hours, centrifugal filtration, repeated washing with deionized water, and then drying at 60°C to obtain mercapto-modified inorganic nano-mesoporous materials;
[0027] 3) Take 5g of the mercapto-modified inorganic nano-mesoporous material obtained above and add it to 50ml deionized water, drop in 1...
Embodiment 3
[0030] 1) 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 13.70g of methyl orthosilicate and 1.58g of calcium acetate, and stir at 120°C for 1 day , after drying, calcined at 700° C. for 6 hours to obtain inorganic nano-mesoporous materials. (Silicon dioxide: calcium oxide is 90:10).
[0031] 2) Amino-modify the prepared nano-mesoporous material, amino-modification process route: disperse each gram of inorganic mesoporous material in 100ml deionized water toluene and 1ml KH550, reflux in 80°C water bath reflux device for 5 hours, Then use a suction filter bottle with a pore size of 0.22 micron microporous membrane to filter and clean, and place the cleaned bioactive glass in a vacuum oven at 130°C for 12 hours to obtain an amino-modified inorganic nanometer mesoporous material;
[0032] 3) Take 5 g of the above-mentioned amino-modified inorganic nano-mesoporous material and add it to ...
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