Gold-silver composite nano chain antibacterial agent synthesizing method
A technology of gold-silver composite and synthesis method, which is applied in the field of environmental science, can solve problems such as gold-silver nano-composite chain materials that have not yet been reported, and achieve the effects of neat and unified structure, good antibacterial effect, and simple process
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Embodiment 1
[0021] Add 0.02g polyacrylamide to 20mL0.01mol / L AgNO 3 In the solution, use ammonia water to adjust the pH of the system to 10, drop vitamin C solution into the reaction solution under mechanical stirring conditions as a reducing agent until no precipitation occurs, and age the solution at room temperature for 1 hour, centrifuge at high speed, wash, Elemental silver nanoparticle chains are obtained.
[0022] The prepared silver nanochains were added to a beaker together with 0.05 mL of thioglycolic acid and 10 mL of absolute ethanol. After ultrasonic treatment for 5 minutes, they were separated by high-speed centrifugation to obtain silver nanochains whose surface was treated with thioglycolic acid. Add the surface-treated Ag nanoparticle chains into the beaker, and add 20 mL of deionized water to disperse. Will add 7mL0.01mol / L HAuCl respectively 4 solution and 5mL hydrazine hydrate (N 2 h 4 ·H 2 (2, 30wt%) after two test tubes are sealed with collodion film, be inverte...
Embodiment 2
[0024] Add 0.02g polymethylcellulose to 20mL0.01mol / L AgNO 3 In the solution, use ammonia water to adjust the pH of the system to 10, drop vitamin C solution into the reaction solution under mechanical stirring conditions as a reducing agent until no precipitation occurs, and age the solution at room temperature for 1 hour, centrifuge at high speed, wash, Obtain elemental silver nanochains.
[0025] The prepared silver nanochains were added to a beaker together with 0.5mL thioglycolic acid and 10mL absolute ethanol. After ultrasonic treatment for 5 minutes, they were centrifuged at high speed to obtain silver nanochains whose surface was treated with thioglycolic acid. Add the surface-treated Ag nanochains into the beaker, and add 20 mL of deionized water to disperse. Will add 8mL0.01mol / L HAuCl respectively 4 solution and 6mL hydrazine hydrate (N 2 h 4 ·H 2 (2, 30wt%) After two test tubes of 30wt%) seal with egg film, be inverted in the beaker that is filled with silver ...
Embodiment 3
[0027] Add 0.02g sodium polyacrylate to 20mL0.01mol / L AgNO 3 In the solution, use ammonia water to adjust the pH of the system to 10, drop vitamin C solution into the reaction solution under mechanical stirring conditions as a reducing agent until no precipitation occurs, and age the solution at room temperature for 1 hour, centrifuge at high speed, wash, Obtain elemental silver nanochains.
[0028]The prepared silver nanochains were added to a beaker together with 0.5mL thioglycolic acid and 10mL absolute ethanol. After ultrasonic treatment for 5 minutes, they were centrifuged at high speed to obtain silver nanochains whose surface was treated with thioglycolic acid. Add the surface-treated Ag nanochains into the beaker, and add 20 mL of deionized water to disperse. Will add 6mL0.01mol / L HAuCl respectively 4 solution and 5mL hydrazine hydrate (N 2 h 4 ·H 2 (2, 30wt%) after two test tubes are sealed with swim bladder, be inverted in the beaker that is filled with silver n...
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