Porous graphene zinc-oxide-loaded antibacterial composite material and preparation method thereof

A technology of porous graphene and composite materials, applied in botany equipment and methods, chemicals for biological control, animal repellants, etc., can solve problems such as difficult dispersion, easy falling off, serious agglomeration of nano-zinc oxide, etc. Achieve the effects of preventing aggregation, long-term antibacterial activity, and improving stability

Inactive Publication Date: 2017-02-01
佛山市高明区尚润盈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Combining nano-zinc oxide and graphene will improve the antibacterial properties of zinc oxide. However, this anti-bacterial property is still not ideal. Nano-zinc oxide is seriously agglomerated and difficult to disperse, and it gathers in the parts of graphene; and nano-zinc oxide and graphene cannot be tightly bound. Combined, it is easy to fall off during use, thus affecting the service life and antibacterial effect

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  • Porous graphene zinc-oxide-loaded antibacterial composite material and preparation method thereof

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Embodiment 1

[0016] A kind of preparation method of porous graphene loaded zinc oxide antibacterial composite material, it comprises the following steps:

[0017] (1) Preparation of graphene quantum dot suspension: weigh 0.5g of C60 powder, measure 50ml of concentrated sulfuric acid with a mass fraction of 98%, mix C60 powder and concentrated sulfuric acid in a beaker, place the beaker in an ice-water bath, and simultaneously Stir at a speed of 500rpm to obtain a mixed solution; weigh 3g of potassium permanganate powder, and slowly add it to the above mixed solution; remove the ice-water bath and replace it with a water bath, keep the temperature of the water bath at 30~40°C, and react for 8 hours; quickly add 200ml of pure Water, filtered, and then dialyzed for 3 days with a dialysis bag with a molecular weight cut-off of 1000 to obtain a suspension of graphene quantum dots; the suspension of graphene quantum dots was stirred at a speed of 100 rpm, while laser irradiation was performed for...

Embodiment 2

[0022] A kind of preparation method of porous graphene loaded zinc oxide antibacterial composite material, it comprises the following steps:

[0023] (1) Preparation of graphene quantum dot suspension: Weigh 0.7g of C60 powder, measure 80ml of concentrated sulfuric acid with a mass fraction of 98%, mix C60 powder and concentrated sulfuric acid in a beaker, place the beaker in an ice-water bath, and simultaneously Stir at a speed of 500rpm to obtain a mixed solution; weigh 2g of potassium permanganate powder, and slowly add it to the above mixed solution; remove the ice-water bath and replace it with a water bath, keep the temperature of the water bath at 30-40°C, and react for 6 hours; quickly add 200ml of pure Water, filtered, and then dialyzed for 3 days with a dialysis bag with a molecular weight cut-off of 1000 to obtain a suspension of graphene quantum dots; the suspension of graphene quantum dots was stirred at a speed of 100 rpm, while laser irradiation was performed for...

Embodiment 3

[0028] A kind of preparation method of porous graphene loaded zinc oxide antibacterial composite material, it comprises the following steps:

[0029] (1) Preparation of graphene quantum dot suspension: Weigh 0.8g of C60 powder, measure 100ml of concentrated sulfuric acid with a mass fraction of 98%, mix C60 powder and concentrated sulfuric acid in a beaker, put the beaker in an ice-water bath, and simultaneously Stir at a speed of 500rpm to obtain a mixed solution; weigh 1g of potassium permanganate powder, and slowly add it to the above mixed solution; remove the ice-water bath and replace it with a water bath, keep the temperature of the water bath at 30-40°C, and react for 5 hours; quickly add 100ml of pure Water, filtered, and then dialyzed for 3 days with a dialysis bag with a molecular weight cut-off of 1000 to obtain a suspension of graphene quantum dots; the suspension of graphene quantum dots was stirred at a speed of 100 rpm, while laser irradiation was performed for ...

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Abstract

The invention discloses a porous graphene zinc-oxide-loaded antibacterial composite material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing graphene quantum dot suspension liquid; (2) preparing zinc-oxide-loaded graphene quantum dots; (3) carrying out surface treatment; (4) preparing a composite material. According to the method, the graphene quantum dots irradiated by laser are taken as carriers of nano-zinc oxide, are then subjected to the surface treatment, and are finally attached to porous graphene, so that the nano-zinc oxide is better loaded and fixed so as to be prevented from agglomerating. After the method is adopted, the stability of the nano-zinc oxide is obviously improved, and the nano-zinc oxide is enabled to have a more long-acting antibacterial activity, so that the porous graphene zinc-oxide-loaded antibacterial composite material has wide prospect in industrial application.

Description

technical field [0001] The invention relates to a porous graphene-loaded zinc oxide antibacterial composite material and a preparation method thereof. Background technique [0002] Because its size is between atomic clusters and macroscopic particles, nano-zinc oxide has the volume (small size) effect, surface effect and macroscopic quantum tunneling effect of nanomaterials. It is used in light, electricity, gas sensitivity, antibacterial disinfection, and ultraviolet shielding. It has special functions that ordinary zinc oxide products do not have. [0003] Graphene, as an allotrope of carbon, is a single-layer two-dimensional crystal material with a honeycomb structure formed by the hybridization of carbon atoms according to sp2 orbitals. Graphene has good mechanical properties and chemical stability, which will also be used in composite materials and other fields have broad application prospects. [0004] Combining nano-zinc oxide and graphene will improve the antibacte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N59/16A01P1/00
CPCA01N25/08A01N59/16A01N2300/00
Inventor 陆庚
Owner 佛山市高明区尚润盈科技有限公司
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