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Nano antibacterial material and preparation method and application thereof

A kind of antibacterial material and nanotechnology, applied in the field of nano antibacterial material and its preparation, can solve the problems of many impurities and cumbersome subsequent operations, and achieve the effect of improving antibacterial performance, improving penetration ability and good application prospects

Pending Publication Date: 2022-02-25
广州先护特农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the zinc oxide prepared by the hydrothermal method is more spherical and short rod-shaped, and the zinc oxide prepared into other shapes has many impurities, and the subsequent operations required are cumbersome.

Method used

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  • Nano antibacterial material and preparation method and application thereof
  • Nano antibacterial material and preparation method and application thereof
  • Nano antibacterial material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Dihydrate zinc acetate Zn(Ac) of 6g at room temperature 2 ·H 2 O was dissolved in 40 mL of 50% PEG400 aqueous solution.

[0043] (2) Add 0.5g of nano-bentonite into (1), and stir for 4 hours.

[0044] (3) Prepare an ammonia solution with a mass concentration of 5% and slowly add it to (2), and adjust the pH of the solution to 8.

[0045] (4) Take 1g of rosin and dissolve it in 20mL of ethanol. After it is completely dissolved, add it dropwise to (3) and stir for 2h.

[0046] (5) Stir until it becomes a paste, transfer it to a reaction kettle, and react at 110° C. for 12 hours.

[0047] (6) The product in (5) was washed three times with ethanol and water successively, and the solid was transferred to a vacuum drying oven at 50° C. for 12 hours to obtain a spindle-shaped zinc oxide.

Embodiment 2

[0056] (1) Dihydrate zinc acetate Zn(Ac) of 6g at room temperature 2 ·H 2 O was dissolved in 40 mL of 50% PEG1000 solution.

[0057] (2) Add 0.5g of nano-bentonite into (1), and stir for 4 hours.

[0058] (3) Prepare an ammonia solution with a mass concentration of 5% and slowly add it to (2), and adjust the pH of the solution to 8.

[0059] (4) Take 1g of rosin and dissolve it in 20mL of ethanol. After it is completely dissolved, add it dropwise to (3) and stir for 2h.

[0060] (5) Stir until it becomes a paste, transfer it to a reaction kettle, and react at 110° C. for 18 hours.

[0061] (6) The product in (5) was washed three times with ethanol and water successively, and the solid was transferred to a vacuum drying oven at 50° C. for 12 hours to obtain spindle-shaped zinc oxide nanorods.

[0062] (7) Prepare a liquid culture medium, dissolve 20 g of nutrient broth in 1000 mL of high-purity water, put it into an autoclave for sterilization, and lower the temperature to ...

Embodiment 3

[0068] (1) Dihydrate zinc acetate Zn(Ac) of 6g at room temperature 2 ·H 2 O was dissolved in 40 mL of 50% PEG1000 solution.

[0069] (2) Add 0.5g of nano-bentonite into (1), and stir for 4 hours.

[0070] (3) Prepare an ammonia solution with a mass concentration of 5% and slowly add it to (2), and adjust the pH of the solution to 8.

[0071] (4) Take 1g of rosin and dissolve it in 20mL of ethanol. After it is completely dissolved, add it dropwise to (3) and stir for 2h.

[0072] (5) Stir until it becomes a paste, transfer it to a reaction kettle, and react at 110° C. for 18 hours.

[0073] (6) The product in (5) was washed three times with ethanol and water successively, and the solid was transferred to a vacuum drying oven at 50° C. for 12 hours to obtain spindle-shaped zinc oxide nanorods.

[0074] (7) Prepare a liquid culture medium, dissolve 20 g of nutrient broth in 1000 mL of ultrapure water, put it into an autoclave for sterilization, and lower the temperature to ro...

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Abstract

The invention discloses a nano antibacterial material and a preparation method and application thereof. The fusiform zinc oxide nanorod antibacterial material is prepared by taking zinc acetate as a zinc source, ammonia water as an oxygen source, clay as a dispersing agent and rosin as a dispersing agent and a capping agent through a hydrothermal method. The two ends of the fusiform zinc oxide nanorod are needle-point-shaped, rosin is adsorbed on the surface of the fusiform zinc oxide nanorod, and the antibacterial performance of the fusiform zinc oxide nanorod is greatly improved. The preparation method is simple, mild in condition and high in repeatability, and overcomes the defects of the existing nano material preparation. The obtained zinc oxide nanorod can be used as a bacteriostatic material in the fields of tissue engineering, food, textiles, coatings and the like.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanometer materials, and in particular relates to a nanometer antibacterial material and its preparation method and application. Background technique [0002] Since zinc oxide is a wide bandgap semiconductor material with a bandgap width of 3.37eV, the exciton binding energy at room temperature is 60meV, accompanied by good electron mobility. These excellent properties make zinc oxide widely used in the fields of photocatalytic degradation of organic dyes and antibacterial and antibacterial. Zinc oxide is a safe material approved by the US Food and Drug Administration (FDA), and has been widely used in food preservation, additives, bioceramics and antibacterial coatings for medical devices. However, the antibacterial properties of zinc oxide are limited, only one-thousandth of the antibacterial properties of nano-silver, generally by increasing its dosage or other antibacterial substances such ...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y40/00A01N65/06A01N59/16A01N25/08A01P1/00
CPCC01G9/02B82Y40/00A01N65/00A01N65/06A01N59/16A01N25/08C01P2004/16C01P2004/03C01P2002/82C01P2002/72Y02A50/30
Inventor 胡甜朱启顺吴官平胡汉剑蒋斯扬
Owner 广州先护特农业科技有限公司
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