CN111470502B - Graphene disinfectant and preparation method thereof - Google Patents
Graphene disinfectant and preparation method thereof Download PDFInfo
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- CN111470502B CN111470502B CN202010291130.0A CN202010291130A CN111470502B CN 111470502 B CN111470502 B CN 111470502B CN 202010291130 A CN202010291130 A CN 202010291130A CN 111470502 B CN111470502 B CN 111470502B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses a graphene disinfectant and a preparation method thereof, wherein the method comprises the following steps of 1, preparing a water-soluble graphene dispersion; step 2, preparing a water-soluble graphene dispersion liquid; step 3, adding a dispersing agent into the solution of the water-soluble graphene obtained in the step 2, and uniformly stirring; step 4, continuing to add the surfactant into the solution, continuously stirring until the solution is uniform, and then defoaming; and 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant. The invention also provides the graphene disinfectant prepared by the method. The main components adopted by the invention comprise water-soluble graphene, food-grade dispersant, food-grade surfactant and deionized water. The disinfectant has the characteristics of environmental protection, good sterilization effect, long bacteriostasis time, no pungent smell, low production cost and the like, and can be applied to daily life areas or public places.
Description
Technical Field
The invention relates to a disinfectant and a preparation method thereof, and particularly relates to a graphene disinfectant and a preparation method thereof.
Background
Disinfectant (disinfectant, commonly called disinfectant and disinfectant water) is a liquid disinfectant, and is mainly used for disinfection work in various places and requirements, and killing microorganisms such as bacteria, fungi, viruses and the like.
The disinfectant can be divided into a household disinfectant, an industrial grade disinfectant, a food grade disinfectant and the like according to different use places, and the disinfectant comprises sodium hypochlorite (84 disinfectant), quaternary ammonium salt (94 disinfectant), chloroxylenol (dripping disinfectant, weilushi disinfectant), peroxyacetic acid and the like according to chemical components. There are many types of disinfectant liquids, and they are mainly classified into oxidizing substances, aldehydes, phenols, alcohols, alkali salts, halogens, surfactants, and the like according to their disinfecting principles.
Wherein the oxidation sterilization mechanism is to release nascent atomic oxygen and oxidize active groups in bacteria. The sterilization is characterized by fast and strong action and capability of killing all microorganisms including bacterial spores and viruses. Mainly uses surface disinfection, such as chlorine dioxide, hydrogen peroxide, ozone, sodium hypochlorite and the like, and the disinfectants are sterilizing agents. The bactericidal mechanism of aldehydes is to denature or alkylate proteins. The sterilization is characterized by being effective to bacteria, spores, fungi and viruses. But the temperature effect is greater. Such as formaldehyde, glutaraldehyde, and the like. The disinfectant can be used as a sterilizing agent. The mechanism of phenolic sterilization is to denature, precipitate or inactivate the enzyme system. The bactericidal characteristics are effective against fungi and partial viruses. The bactericidal mechanism of alcohols is to denature proteins, interfering with metabolism. The sterilization is characterized by being effective to bacteria, and ineffective to spores, fungi and viruses, such as ethanol, ethylene propylene alcohol and the like. The disinfectant is a medium-effect disinfectant and can only be used for general disinfection. The bactericidal mechanism of the alkali salts is to denature, precipitate or dissolve the protein. The sterilization is characterized in that the sterilization can kill bacterial propagules, bacterial spores, viruses and some microorganisms which are difficult to kill. Strong bactericidal action and strong corrosivity, such as sodium hydroxide, calcium oxide, table salt (non-corrosivity) and the like. Generally, the disinfectant can only be used as a preventive disinfectant and a sterilization washing solution. The mechanism of halogen sterilization is to oxidize active genes in the cells and to bond them to amino groups to denature proteins. It features killing most microbes, surface disinfection, unstable nature and high effect on killing microbes, such as sodium hypochlorite and high-purity chlorine. The disinfectant is a middle-effect disinfectant, and can be used as a common disinfectant. The bactericidal mechanism of surfactants is to alter cell membrane permeability, to allow cytoplasmic leakage, to impede respiration, or to denature proteases. The sterilization is characterized by killing bacterial propagules, but has poor effects on spores, fungi, viruses and tubercle bacillus. Has good effect under alkaline and neutral conditions, such as benzalkonium bromide, and Baidu killing. The disinfectant is a low-or medium-effective disinfectant, and can be used as a common disinfectant.
Some research reports indicate that excessive use of disinfectant fluid or antibiotics easily stimulates bacteria or viruses to mutate and even causes bacteria or viruses to generate resistance. Meanwhile, the overuse of disinfectant fluid or antibiotics and the like can cause harm to human bodies to a certain extent.
The disinfectant belongs to chemical disinfectant, and does not belong to green environment-friendly disinfectant.
On the other hand, graphene is a monolayer of carbon atoms material stripped from graphite, and a monolayer of two-dimensional honeycomb lattice structure is formed by tightly packing carbon atoms, and is known to be the thinnest, most rigid and best conductive material. Graphene has excellent mechanical, optical and electrical properties and a very stable structure, researchers have not found that graphene has carbon atoms missing, the linkage between carbon atoms is very flexible, and is harder than diamond, the strength of graphene is 100 times higher than that of the best steel in the world, and if graphene is used for making a packaging bag, the graphene can bear articles about two tons in weight, is almost completely transparent, is very compact, is waterproof and airtight, helium with the smallest atomic size cannot pass through the graphene, the graphene has good conductivity, the movement speed of electrons in graphene reaches 1/300 of the light speed, the conductivity exceeds that of any traditional conductive material, the chemical properties of the graphene are similar to those of a graphite surface, various atoms and molecules can be adsorbed and desorbed, and the graphene has the capability of resisting strong acid and strong base. Meanwhile, the graphene has an excellent antibacterial function, can effectively avoid bacterial breeding, and can be applied to a plurality of fields.
The graphene antibacterial principle is as follows: the antibacterial and antiviral capacity of the graphene material is mainly based on the mixed synergistic effect of the following mechanisms: 1) Physical cutting, also called Nano-Knives (Nano-knifes), sharp physical edges of graphene materials can effectively cut surfaces of bacterial viruses, destroy cell walls and membrane structures, cause leakage of substances in cells and metabolic disturbance, and finally cause death of the bacterial viruses, and the graphene materials are one of main antibacterial and antiviral mechanisms of the graphene materials; 2) The membrane surface component Extraction (intercalation and Extraction), the graphene material has large specific surface area and hydrophobicity, and can effectively adsorb and combine phospholipid molecules on the surface of the bacterial virus in a contact or Insertion mode, so that the cell membrane structure of the bacterial virus is damaged to cause the bacterial virus to die; 3) Physical trapping (Wrapping), wherein the graphene material can isolate bacteria from surrounding media in a Wrapping mode, so that the proliferation of the bacteria is blocked, and a bacteriostatic effect is achieved; 4) Oxidative Stress (ROS), during the contact process with bacteria, the surface defects and sharp edge structures of graphene can induce the bacteria to generate active oxygen components, so that the normal physiological metabolism of the bacteria is disturbed, and the bacteria die. In addition to the main antibacterial and antiviral mechanism, charge conduction is also an important graphene antibacterial mechanism, and the mechanism conducts the charges on the surface of bacteria through graphene, so that the physiological activities and functions of cell membranes are damaged, the metabolic disorder of the bacteria is caused, and the death of the bacteria is promoted.
Therefore, the graphene has a very wide application prospect in the field of antibacterial disinfection.
Disclosure of Invention
The invention aims to provide a disinfectant and a preparation method thereof, which can enhance the bactericidal effect of disinfectant water, prolong the antibacterial time, reduce the pungent smell and achieve the aim of environmental protection by preparing super-long stable water-soluble graphene and adjusting the formula and the production process.
In order to achieve the above object, the present invention provides a method for preparing a graphene disinfectant, wherein the method comprises: step 1, preparing a water-soluble graphene dispersion; step 2, preparing a water-soluble graphene dispersion liquid; step 3, adding a dispersing agent into the solution of the water-soluble graphene obtained in the step 2, and uniformly stirring; step 4, continuing to add the surfactant into the solution, continuously stirring until the solution is uniform, and then defoaming; and 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
In the step 1, the graphite material is used as the anode material, and the electrochemical stripping of the anode material is realized through an electrolytic reaction, so as to obtain the primarily dispersed water-soluble graphene dispersion.
In the step 2, the dispersion obtained in the step 1 is sequentially subjected to ultrasonic treatment, filtering washing and drying treatment to obtain water-soluble graphene powder, and the water-soluble graphene powder is uniformly dispersed in deionized water to obtain a water-soluble graphene dispersion liquid.
The preparation method of the graphene disinfectant comprises the step of preparing a water-soluble graphene dispersion liquid, wherein the concentration of the water-soluble graphene dispersion liquid is 0.001-0.1 mg/ml.
In the preparation method of the graphene disinfectant, the dispersant in the step 3 is a food grade dispersant, and is added into the solution of the water-soluble graphene, the temperature is kept at 30-45 ℃, and the mixture is continuously stirred until the mixture is uniform.
The preparation method of the graphene disinfectant comprises the step of preparing the graphene disinfectant, wherein the food-grade dispersing agent comprises any one or more of sodium acrylate, malt flour and soybean lecithin.
In the preparation method of the graphene disinfectant, the surfactant in the step 4 is a food-grade surfactant, is added into the solution, is kept at 30-60 ℃, is continuously stirred until the mixture is uniform, and is defoamed for 1-3 hours.
In the preparation method of the graphene disinfectant, the food-grade surfactant comprises any one or more of glycerin fatty acid ester, propylene glycol fatty acid ester and sucrose fatty acid ester.
In the preparation method of the graphene disinfectant, the dispersant is added into the solution in an amount of 0.1-5% by mass of the total amount of the solution, and the surfactant is added into the solution in an amount of 0.1-1% by mass of the total amount of the solution.
The invention also provides the graphene disinfectant prepared by the method.
The graphene disinfectant and the preparation method thereof provided by the invention have the following advantages:
the main components adopted by the invention comprise water-soluble graphene, food-grade dispersant, food-grade surfactant and deionized water. By preparing the water-soluble graphene with ultra-long stability, adjusting the formula and the production process, the bactericidal effect of the disinfectant fluid is enhanced, the antibacterial time is prolonged, the pungent smell is reduced, and the purpose of environmental protection is achieved.
The disinfectant has better sterilization effect and long bacteriostatic time, and can inhibit the production and propagation of bacteria when being sprayed on clothes or other places; the production process is compact, and the production cost is reduced; the disinfectant has no pungent smell, reasonable formula and no pungent smell, and is a green environment-friendly disinfectant.
Detailed Description
The following further describes embodiments of the present invention.
The invention provides a preparation method of a graphene disinfectant, which comprises the following steps:
step 1, preparing a water-soluble graphene dispersion; step 2, preparing a water-soluble graphene dispersion liquid; step 3, adding a dispersing agent into the solution of the water-soluble graphene obtained in the step 2, and uniformly stirring; step 4, continuously adding a surfactant into the solution, continuously stirring until the solution is uniform, and then defoaming; and 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
Preferably, in step 1, the graphite material is used as an anode material, and electrochemical stripping of the anode material is realized through an electrolytic reaction, so as to obtain a primarily dispersed water-soluble graphene dispersion.
And 2, sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step 1 to obtain water-soluble graphene powder, and uniformly dispersing the water-soluble graphene powder in deionized water to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion liquid is 0.001-0.1 mg/ml.
And 3, adding the dispersant in the step 3, which is a food-grade dispersant, into the solution of the water-soluble graphene, keeping the temperature at 30-45 ℃, and continuously stirring until the dispersant is uniform.
The food grade dispersant comprises one or more of sodium acrylate, fructus Hordei Germinatus powder, and soybean phospholipid.
And 4, adding the surfactant in the step 4 into the solution, keeping the temperature at 30-60 ℃, continuously stirring the solution until the solution is uniform, and defoaming the solution for 1-3 hours.
The food-grade surfactant comprises one or more of glycerin fatty acid ester, propylene glycol fatty acid ester, and sucrose fatty acid ester.
The dispersant added into the solution by mass percent accounts for 0.1-5% of the total amount of the solution, and the surfactant is added into the solution by mass percent accounts for 0.1-1% of the total amount of the solution.
The invention also provides the graphene disinfectant prepared by the method.
The graphene disinfectant and the preparation method thereof provided by the invention are further described below with reference to the following embodiments.
Example 1
A preparation method of a graphene disinfectant comprises the following steps:
step 1, preparing a water-soluble graphene dispersion.
Preferably, graphite material is used as anode material, electrochemical stripping of the anode material is realized through electrolytic reaction, and the primarily dispersed water-soluble graphene dispersion is obtained.
And 2, preparing a water-soluble graphene dispersion liquid.
And (2) sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step (1) to obtain water-soluble graphene powder, dispersing the water-soluble graphene powder in deionized water, and carrying out stirring, ultrasonic treatment and the like to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion liquid was 0.001mg/ml.
And 3, adding a dispersing agent into the water-soluble graphene solution obtained in the step 2, keeping the temperature at 30-45 ℃, and continuously stirring until the mixture is uniform.
The dispersant is a food grade dispersant comprising sodium acrylate.
The dispersant added in the solution in percentage by mass was 0.1% of the total amount of the solution.
And 4, continuously adding the surfactant into the solution, keeping the temperature at 30-60 ℃, continuously stirring until the solution is uniform, and defoaming for 1-3 hours.
The surfactant is a food grade surfactant comprising a glycerol fatty acid ester.
The surfactant added in the solution in percentage by mass is 0.1% of the total amount of the solution.
And 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
The embodiment also provides the graphene disinfectant prepared by the method.
Example 2
A preparation method of a graphene disinfectant comprises the following steps:
step 1, preparing a water-soluble graphene dispersion.
Preferably, graphite material is used as anode material, electrochemical stripping of the anode material is realized through electrolytic reaction, and the primarily dispersed water-soluble graphene dispersion is obtained.
And 2, preparing a water-soluble graphene dispersion liquid.
And (2) sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step (1) to obtain water-soluble graphene powder, dispersing the water-soluble graphene powder in deionized water, and carrying out stirring, ultrasonic treatment and the like to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion liquid was 0.01mg/ml.
And 3, adding a dispersing agent into the water-soluble graphene solution obtained in the step 2, keeping the temperature at 30-45 ℃, and continuously stirring until the mixture is uniform.
The dispersant is a food grade dispersant comprising malt flour.
The dispersant added to the solution in mass percent was 1.5% of the total solution.
And 4, continuously adding the surfactant into the solution, keeping the temperature at 30-60 ℃, continuously stirring until the solution is uniform, and defoaming for 1-3 hours.
The surfactant is a food grade surfactant comprising a propylene glycol fatty acid ester.
The surfactant added to the solution was 0.3% by mass of the total solution.
And 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
The embodiment also provides the graphene disinfectant prepared by the method.
Example 3
A preparation method of a graphene disinfectant comprises the following steps:
step 1, preparing a water-soluble graphene dispersion.
Preferably, graphite material is used as anode material, electrochemical stripping of the anode material is realized through electrolytic reaction, and the primarily dispersed water-soluble graphene dispersion is obtained.
And 2, preparing a water-soluble graphene dispersion liquid.
And (2) sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step (1) to obtain water-soluble graphene powder, dispersing the water-soluble graphene powder in deionized water, and carrying out stirring, ultrasonic treatment and the like to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion liquid is 0.05mg/ml.
And 3, adding a dispersing agent into the water-soluble graphene solution obtained in the step 2, keeping the temperature at 30-45 ℃, and continuously stirring until the mixture is uniform.
The dispersant is a food grade dispersant comprising soy lecithin.
The dispersant was added to the solution in a mass percentage of 3% of the total amount of the solution.
And 4, continuously adding the surfactant into the solution, keeping the temperature at 30-60 ℃, continuously stirring until the solution is uniform, and defoaming for 1-3 hours.
The surfactant is food-grade surfactant, and the food-grade surfactant contains sucrose fatty acid ester.
The surfactant added in the solution in percentage by mass is 0.5% of the total amount of the solution.
And 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
The embodiment also provides the graphene disinfectant prepared by the method.
Example 4
A preparation method of a graphene disinfectant comprises the following steps:
step 1, preparing a water-soluble graphene dispersion.
Preferably, graphite material is used as anode material, electrochemical stripping of the anode material is realized through electrolytic reaction, and the primarily dispersed water-soluble graphene dispersion is obtained.
And 2, preparing a water-soluble graphene dispersion liquid.
And (2) sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step (1) to obtain water-soluble graphene powder, dispersing the water-soluble graphene powder in deionized water, and carrying out stirring, ultrasonic treatment and the like to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion was 0.08mg/ml.
And 3, adding a dispersing agent into the water-soluble graphene solution obtained in the step 2, keeping the temperature at 30-45 ℃, and continuously stirring until the mixture is uniform.
The dispersant is food grade dispersant, and the food grade dispersant comprises any one of sodium acrylate, malt meal and soybean lecithin.
The dispersant added to the solution in percentage by mass was 4% of the total amount of the solution.
And 4, continuously adding the surfactant into the solution, keeping the temperature at 30-60 ℃, continuously stirring until the solution is uniform, and defoaming for 1-3 hours.
The surfactant is food grade surfactant, and the food grade surfactant contains one of glycerin fatty acid ester, propylene glycol fatty acid ester, and sucrose fatty acid ester.
The surfactant added to the solution was 0.8% by mass of the total solution.
And 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
The embodiment also provides the graphene disinfectant prepared by the method.
Example 5
A preparation method of a graphene disinfectant comprises the following steps:
step 1, preparing a water-soluble graphene dispersion.
Preferably, graphite material is used as anode material, electrochemical stripping of the anode material is realized through electrolytic reaction, and the primarily dispersed water-soluble graphene dispersion is obtained.
And 2, preparing a water-soluble graphene dispersion liquid.
And (2) sequentially carrying out ultrasonic treatment, filtering washing and drying treatment on the dispersion obtained in the step (1) to obtain water-soluble graphene powder, dispersing the water-soluble graphene powder in deionized water, and carrying out stirring, ultrasonic treatment and the like to obtain a uniform water-soluble graphene dispersion liquid.
The concentration of the water-soluble graphene dispersion liquid was 0.1mg/ml.
And 3, adding a dispersing agent into the water-soluble graphene solution obtained in the step 2, keeping the temperature at 30-45 ℃, and continuously stirring until the mixture is uniform.
The dispersant is food grade dispersant, and the food grade dispersant comprises any of sodium acrylate, malt meal and soybean lecithin.
The dispersant added in the solution in percentage by mass is 5% of the total amount of the solution.
And step 4, continuously adding the surfactant into the solution, keeping the temperature at 30-60 ℃, continuously stirring until the solution is uniform, and defoaming for 1-3 hours.
The surfactant is food grade surfactant, and the food grade surfactant contains any more of glycerin fatty acid ester, propylene glycol fatty acid ester, and sucrose fatty acid ester.
The surfactant added in the solution in percentage by mass is 1% of the total amount of the solution.
And 5, standing and cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
The embodiment also provides the graphene disinfectant prepared by the method.
The graphene disinfectant and the preparation method thereof provided by the invention mainly comprise water-soluble graphene, a food-grade dispersant, a food-grade surfactant and deionized water. The disinfectant has the characteristics of environmental protection, good sterilization effect, long bacteriostasis time, no pungent smell, low production cost and the like. Can be applied to daily life areas or public places. According to the invention, by preparing the super-long stable water-soluble graphene, adjusting the formula and the production process, the bactericidal effect of the disinfectant fluid is enhanced, the antibacterial time is prolonged, the pungent smell is reduced, and the purpose of environmental protection is achieved.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (6)
1. A preparation method of a graphene disinfectant is characterized by comprising the following steps:
step 1, preparing a water-soluble graphene dispersion;
step 2, preparing a water-soluble graphene dispersion liquid;
step 3, adding a dispersing agent into the solution of the water-soluble graphene obtained in the step 2, and uniformly stirring; the dispersant is food grade dispersant, and is added into the solution of water-soluble graphene, the temperature is kept between 30 and 45 ℃, and the mixture is continuously stirred until the mixture is uniform; the food-grade dispersant comprises one or more of sodium acrylate, malt flour and soybean lecithin;
step 4, continuing to add the surfactant into the solution, continuously stirring until the solution is uniform, and then defoaming; the surfactant is food-grade surfactant, is added into the solution and then is kept at 30-60 ℃, is continuously stirred until the mixture is uniform, and then is defoamed for 1-3 hours; the food-grade surfactant comprises one or more of glycerin fatty acid ester, propylene glycol fatty acid ester and sucrose fatty acid ester;
and 5, standing, cooling to room temperature, and filling into a container to obtain the graphene disinfectant.
2. The method for preparing the graphene disinfectant according to claim 1, wherein in the step 1, a graphite material is used as an anode material, and electrochemical stripping is performed on the anode material through an electrolytic reaction to obtain a primarily dispersed water-soluble graphene dispersion.
3. The method for preparing the graphene disinfectant according to claim 1, wherein in the step 2, the dispersion obtained in the step 1 is sequentially subjected to ultrasonic treatment, filtering washing and drying treatment to obtain water-soluble graphene powder, and the water-soluble graphene powder is uniformly dispersed in deionized water to obtain a water-soluble graphene dispersion liquid.
4. The method for preparing the graphene disinfectant solution according to claim 3, wherein the concentration of the water-soluble graphene dispersion solution is 0.001-0.1 mg/ml.
5. The method for preparing the graphene disinfectant as claimed in claim 1, wherein the dispersant is added into the solution in an amount of 0.1-5% by mass, and the surfactant is added into the solution in an amount of 0.1-1% by mass.
6. A graphene disinfectant prepared by the method of any one of claims 1-5.
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| CN109224900A (en) * | 2018-10-09 | 2019-01-18 | 柳州蓓蒂芬科技有限公司 | Graphene oxide sucrose fatty ester enriched substance and preparation method |
| CN109938038A (en) * | 2019-03-28 | 2019-06-28 | 新冶高科技集团有限公司 | A kind of biology graphene oxide antimicrobial fluid and preparation method thereof |
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