CN112335678A - Graphene-silver ion composite antibacterial liquid capable of lasting disinfection - Google Patents
Graphene-silver ion composite antibacterial liquid capable of lasting disinfection Download PDFInfo
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- CN112335678A CN112335678A CN202011446276.4A CN202011446276A CN112335678A CN 112335678 A CN112335678 A CN 112335678A CN 202011446276 A CN202011446276 A CN 202011446276A CN 112335678 A CN112335678 A CN 112335678A
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- antibacterial liquid
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- froth
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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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- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
-
- 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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
-
- 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
- A01N59/16—Heavy metals; Compounds thereof
Abstract
The invention provides a graphene-silver ion composite antibacterial liquid capable of durably killing viruses. The graphene composite silver ion durable bactericidal antibacterial liquid is prepared by heating, stirring and standing nano silver, modified graphene, nano titanium dioxide and quaternary ammonium salt. The durable sterilizing and antibacterial liquid of the graphene composite silver ions obtained after the preparation process is used as an air disinfectant, has no biotoxicity and no harm to human health and environment, and can be directly sprayed on the surfaces of skin and clothes according to different subdivided products; the environment-friendly flame-retardant coating is safe, environment-friendly, free of strong oxidant, non-combustible, non-explosive and free of pollution to the environment; the bactericidal composition has strong effective durability and no drug resistance, and can be continuously sterilized for 24 hours after being sprayed once; can completely replace the existing disinfection products mainly containing strong oxidants or alcohol.
Description
Technical Field
The invention relates to the technical field of a sterilizing and antibacterial liquid, and particularly relates to a graphene composite silver ion sterilizing and antibacterial liquid capable of lasting sterilization.
Background
Modified graphene is widely studied at home and abroad as a sterilization material, and the sterilization principle of the modified graphene is mainly focused on the following points: the principle of nano-knife, oxidative stress and encapsulation, the main target substances or molecules of the action are DNA/RNA and protein in cells and phospholipid molecules on cell membranes. The basis of the nanograss theory is that graphene oxide flakes have a thickness of 0.35nm, and their sharp edges can cause cell membrane damage, or damage to DNA/RNA within cells. A large number of scholars obtain a process of dynamically simulating the graphene nanosheet to penetrate through a cell membrane through experiments, and in the process, the graphene material plays a role of a nanometer knife. In addition, the monoatomic layer graphene film can wrap microorganisms to be separated from the surrounding environment, an independent space is provided, external influence substances cannot be obtained, own metabolic waste cannot be discharged, and finally the microorganisms die. In addition, in recent years, researches on antibacterial action of graphene are not limited to 'drowned' microorganisms, and some researches show that after the graphene captures and wraps the microorganisms, the surfaces of the microorganisms are induced to be disturbed to a certain extent, and the graphene is interwoven once contacting with the microorganisms. Observed under SEM, although the microbial shell is not destroyed, disturbance occurs, and the biological activity of the microbes can be damaged, so that the graphene composite silver ion antibacterial liquid capable of being durably sterilized is provided.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the graphene composite silver ion durable bactericidal antibacterial liquid is prepared by heating, stirring and standing nano silver, modified graphene, nano titanium dioxide and quaternary ammonium salt, and specifically comprises the following steps:
step one, adding 70-80% of water, 10-15% of modified graphene nano silver and 10-15% of modified graphene into a reaction kettle, heating the reaction kettle, stirring the mixed solution at a constant speed, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth taken out, adding quaternary ammonium salt and a stabilizer every 1-3 hours for 3 times in the standing process, and uniformly stirring for 10 min;
step three; and (3) performing ultrasonic dispersion on the prepared solution to obtain an antibacterial liquid, adding a regulator into the antibacterial liquid, mixing, and regulating the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water in proportion to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
Preferably, the stabilizer in the second step is one selected from PPG-26-butanol polyether-26, lactic acid and sodium lactate.
Preferably, the quaternary ammonium salt in the second step is a biquaternary ammonium salt.
Preferably, the regulator in the third step is edible gum, and the adding rate of the edible gum is 0.5%/min.
Preferably, the initial heating temperature of the reaction kettle in the first step is 80-120 ℃, and the cooling and heating temperature is 70-85 ℃.
Preferably, the mixing ratio in the fourth step is 1: 3-9.
Preferably, the ultrasonic dispersion time in the third step is 15-30 min.
Compared with the prior art, the invention has the beneficial effects that: the durable sterilizing and antibacterial liquid of the graphene composite silver ions has no biotoxicity, is harmless to human health and environment, is used as an air disinfectant, and can be directly sprayed on the surface of skin and clothes according to different subdivided products; the environment-friendly flame-retardant coating is safe, environment-friendly, free of strong oxidant, non-combustible, non-explosive and free of pollution to the environment; the bactericidal composition has strong effective durability and no drug resistance, and can be continuously sterilized for 24 hours after being sprayed once; can completely replace the existing disinfection products mainly containing strong oxidants or alcohol.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment;
step one, adding 70% of water, 15% of modified graphene nano silver and 15% of modified graphene into a reaction kettle, heating the reaction kettle to 80 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 70 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and PPG-26-butanol polyether-26 every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 15min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 3 to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
Example two;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 120 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and lactic acid every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 30min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to the ratio of 1 to 9 to obtain the graphene composite silver ion antibacterial liquid capable of durably killing viruses.
Example three;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 120 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and sodium lactate every 3h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 30min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 6 to obtain the graphene composite silver ion antibacterial liquid capable of lasting disinfection.
Example four;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 110 ℃, stirring the mixed solution at a constant speed, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and lactic acid every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 25min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 4 to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
Example five;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 120 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and sodium lactate every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 30min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 7 to obtain the graphene composite silver ion antibacterial liquid capable of lasting disinfection.
Example six;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 120 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and sodium lactate every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 30min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 3 to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
Example seven;
adding 80% of water, 10% of modified graphene nano silver and 10% of modified graphene into a reaction kettle, heating the reaction kettle to 120 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 85 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and PPG-26-butanol polyether-26 every 2h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 30min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 4 to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
Example eight
Step one, adding 70% of water, 15% of modified graphene nano silver and 15% of modified graphene into a reaction kettle, heating the reaction kettle to 95 ℃, uniformly stirring the mixed solution, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature to 75 ℃, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth, adding biquaternary ammonium salt and PPG-26-butanol polyether-26 every 1h for 3 times during standing, and stirring at constant speed for 10 min;
step three; and ultrasonically dispersing the prepared solution for 25min to obtain an antibacterial liquid, adding edible gum into the antibacterial liquid, mixing at the rate of 0.5%/min, and adjusting the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water according to a ratio of 1 to 4 to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
The durable sterilizing and antibacterial liquid of the graphene composite silver ions obtained after the treatment of the processes of the embodiments 1 to 8 has no biotoxicity, is harmless to human health and environment, is used as an air disinfectant, and can be directly sprayed on the skin and the surface of clothes according to different subdivided products; the environment-friendly flame-retardant coating is safe, environment-friendly, free of strong oxidant, non-combustible, non-explosive and free of pollution to the environment; the bactericidal composition has strong effective durability and no drug resistance, and can be continuously sterilized for 24 hours after being sprayed once; can completely replace the existing disinfection products mainly containing strong oxidants or alcohol.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The durable bactericidal and antibacterial liquid for compounding the graphene with the silver ions is characterized by being prepared by heating, stirring and standing nano silver, modified graphene, nano titanium dioxide and quaternary ammonium salt, and specifically comprises the following steps:
step one, adding 70-80% of water, 10-15% of modified graphene nano silver and 10-15% of modified graphene into a reaction kettle, heating the reaction kettle, stirring the mixed solution at a constant speed, continuously adding nano titanium dioxide in the stirring process until froth appears at the upper end of the solution, reducing the heating temperature, and continuously skimming the froth until the froth completely disappears;
step two; standing the mixed solution with the froth taken out, adding quaternary ammonium salt and a stabilizer every 1-3 hours for 3 times in the standing process, and uniformly stirring for 10 min;
step three; and (3) performing ultrasonic dispersion on the prepared solution to obtain an antibacterial liquid, adding a regulator into the antibacterial liquid, mixing, and regulating the pH value to be more than 7.5.
And step four, mixing the antibacterial liquid with the pH value adjusted with water in proportion to obtain the durable sterilizing antibacterial liquid of graphene composite silver ions.
2. The durable bactericidal and antibacterial liquid containing graphene and silver ions as claimed in claim 1, wherein the stabilizer in the second step is one selected from PPG-26-butanol polyether-26, lactic acid and sodium lactate.
3. The durable bactericidal and antibacterial solution containing graphene and silver ions according to claim 1, wherein the quaternary ammonium salt in the second step is a biquaternary ammonium salt.
4. The durable bactericidal and antibacterial liquid containing graphene and silver ions as claimed in claim 1, wherein the regulator in step three is edible gum, and the addition rate of the edible gum is 0.5%/min.
5. The durable bactericidal and antibacterial liquid containing graphene and silver ions according to claim 1, wherein the initial heating temperature of the reaction kettle in the first step is 80-120 ℃, and the temperature for cooling and heating is 70-85 ℃.
6. The durable bactericidal and antibacterial liquid containing graphene and silver ions according to claim 1, wherein the mixing ratio in the fourth step is 1: 3-9.
7. The durable bactericidal and antibacterial liquid containing graphene and silver ions according to claim 1, wherein the ultrasonic dispersion time in the third step is 15-30 min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693080A (en) * | 2021-07-27 | 2021-11-26 | 李艳红 | Graphene ion sterilizing and antibacterial liquid and preparation method thereof |
| CN113940355A (en) * | 2021-10-08 | 2022-01-18 | 张贵玲 | Photocatalyst graphene composite system sterilization disinfectant and preparation method thereof |
| CN115039769A (en) * | 2022-07-21 | 2022-09-13 | 合肥微晶材料科技有限公司 | Cation modified graphene antibacterial spray and preparation method thereof |
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Cited By (4)
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Application publication date: 20210209 |