G-C3N4 nano-fiber antibacterial film and preparation method and application thereof
A technology of nanofibers and antibacterial membranes, applied in the field of preparation of g-C3N4 nanofiber antibacterial membranes, which can solve the problems of reducing the utilization rate of nanoparticles, easy aggregation and decline, etc.
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Embodiment 1
[0020] Example 1g-C 3 N 4 Antibacterial experiment of nanofiber antibacterial film against Escherichia coli
[0021] 1 Experimental materials
[0022]
[0023] 2 Experimental Standard Strains
[0024] Escherichia coli
[0025] 3 Experimental methods
[0026] 1) g-C 3 N 4 preparation of
[0027] ① Weigh 10g of urea, put it in a crucible, cover it, and put it in a vacuum tube furnace;
[0028] ②Adjust the calcination temperature and time: raise the temperature to 550°C at a rate of 5°C / min, then calcinate at 550°C for 4 hours, cool to room temperature, and obtain g-C as a light yellow solid 3 N 4 , ground into powder for later use.
[0029] 2) g-C 3 N 4 Preparation of nanofiber antibacterial film
[0030] ① According to the standard of mass volume concentration 0.5% (W / V, g / mL), g-C 3 N 4 The nanoparticles were added into a polyethylene oxide solution with a concentration of 10 wt% (g / g), and magnetically stirred for 24 hours to prepare a spinning precursor sol...
Embodiment 2
[0050] Example 2g-C 3 N 4 Antibacterial experiment of nanofiber antibacterial film against Staphylococcus aureus
[0051] 1 Experimental materials
[0052]
[0053] 2 Experimental Standard Strains
[0054] Staphylococcus aureus (S.aureus)
[0055] 3 Experimental methods
[0056] 1) g-C 3 N 4 preparation of
[0057] ① Weigh 10g of urea, put it in a crucible, cover it, and put it in a vacuum tube furnace;
[0058] ②Adjust the calcination temperature and time: raise the temperature to 550°C at a rate of 5°C / min, then calcinate at 550°C for 4 hours, cool to room temperature, and obtain g-C as a light yellow solid 3 N 4 , ground into powder for later use.
[0059] 2) g-C 3 N 4 Preparation of nanofiber antibacterial film
[0060] ① According to the standard of 0.5% (W / V, g / mL) in mass volume concentration, g-C 3 N 4 The nanoparticles were added into a polyethylene oxide solution with a concentration of 10 wt% (g / g), and magnetically stirred for 24 hours to prepare ...
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