Photocatalytic antibacterial hydrogel dressing and preparation method thereof
A hydrogel and photocatalytic technology, used in pharmaceutical formulations, resistance to vector-borne diseases, medical science, etc., can solve problems such as toxic side effects, drug resistance, can not safely and effectively solve wound healing, and achieve stable composition , skin protection, high yield and stable effect
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Embodiment 1
[0051] 1. Preparation of bismuth oxyiodide:
[0052] Under normal temperature and pressure conditions, 0.6 mmol of bismuth nitrate was dissolved in 50 ml of deionized water, and 0.9 mmol of potassium iodide was added at a stirring speed of 600 rpm. After stirring for 2 h, the aqueous sol of bismuth oxyiodide was obtained.
[0053] 2. Preparation of nano-zinc oxide composite materials doped with bismuth oxyiodide:
[0054] Under normal temperature and pressure conditions, under the condition of stirring speed of 400 rpm, disperse 0.5 g of nano-zinc oxide with a particle size of 10-100 nm in 25 ml of deionized water, then add the above-mentioned bismuth oxyiodide hydrosol, and then in The reaction was carried out at a stirring speed of 400 rpm for 20 min to obtain a solid phase product, which was washed and dried in a vacuum oven at 60 °C for 13 h to obtain bismuth oxyiodide doped zinc oxide nanocomposites.
[0055] 3. Preparation of photocatalytic antibacterial hydrogel dressi...
Embodiment 2
[0058] 1. Preparation of bismuth oxyiodide:
[0059] Under normal temperature and pressure conditions, 0.15 mmol of bismuth nitrate was dissolved in 50 ml of deionized water, and at a stirring speed of 40 rpm, 0.225 mmol of potassium iodide was added, and after stirring for 0.5 h, an aqueous sol of bismuth oxyiodide was obtained.
[0060] 2. Preparation of nano-zinc oxide composite materials doped with bismuth oxyiodide:
[0061] Under normal temperature and pressure conditions, under the condition of stirring speed of 40 rpm, disperse 0.5 g of nano-zinc oxide with a particle size of 10-100 nm in 25 ml of deionized water, then add the above-mentioned bismuth oxyiodide hydrosol, and then Under the condition of stirring speed of 40 rpm, the reaction was carried out for 10 min to obtain a solid phase product, which was washed and dried in a vacuum oven at 50 °C for 12 h to obtain bismuth oxyiodide doped zinc oxide nanocomposites.
[0062] 3. Preparation of photocatalytic antibac...
Embodiment 3
[0065] 1. Preparation of bismuth oxyiodide:
[0066] Under normal temperature and pressure conditions, 1.2 mmol of bismuth nitrate was dissolved in 50 ml of deionized water, and 1.8 mmol of potassium iodide was added at a stirring speed of 1200 rpm. After stirring for 3 h, a bismuth oxyiodide hydrosol was obtained.
[0067] 2. Preparation of nano-zinc oxide composite materials doped with bismuth oxyiodide:
[0068] Under normal temperature and pressure conditions, under the condition of stirring speed of 800 rpm, disperse 0.5 g of nano-zinc oxide with a particle size of 10-100 nm in 25 ml of deionized water, then add the above-mentioned bismuth oxyiodide hydrosol, and then in The reaction was carried out at a stirring speed of 800 rpm for 30 min to obtain a solid phase product, which was washed and dried in a vacuum oven at 70 °C for 14 h to obtain bismuth oxyiodide doped zinc oxide nanocomposites.
[0069] 3. Preparation of photocatalytic antibacterial hydrogel dressing:
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