CN111940143A - Sterilizing, disinfecting and ozone-removing electrostatic adsorption electrode and preparation method thereof - Google Patents
Sterilizing, disinfecting and ozone-removing electrostatic adsorption electrode and preparation method thereof Download PDFInfo
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- CN111940143A CN111940143A CN202010728422.6A CN202010728422A CN111940143A CN 111940143 A CN111940143 A CN 111940143A CN 202010728422 A CN202010728422 A CN 202010728422A CN 111940143 A CN111940143 A CN 111940143A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/60—Use of special materials other than liquids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
- A61L2209/212—Use of ozone, e.g. generated by UV radiation or electrical discharge
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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
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a sterilization, disinfection and ozone removal electrostatic adsorption electrode, which comprises an electrostatic dust collection electrode and a discharge electrode, wherein the two electrodes are matched for use; the electrostatic precipitation electrode includes: the surface of the electrostatic dust collection electrode plate is coated with metal particles, and a disinfecting and sterilizing metal particle coating is formed on the surface of the electrostatic dust collection electrode plate; the discharge electrode includes: the surface of the discharge electrode plate is coated with an ozone decomposition catalyst, and an ozone decomposition catalyst coating is formed on the surface of the discharge electrode plate; the invention also discloses a preparation method of the electrode. The electrode can continuously, efficiently and thoroughly kill broad-spectrum bacteria, viruses and other microorganisms in the air under the condition of people, and particularly has important application in the aspect of new coronavirus. The air purifier is particularly suitable for purifying the environmental air with dense personnel and poor air circulation in hospitals, malls, carriages, cabins and the like.
Description
Technical Field
The invention belongs to the technical field of electrostatic adsorption, and particularly relates to a sterilization, disinfection and ozone removal electrostatic adsorption electrode and a preparation method thereof.
Background
Air is a transmission medium for many diseases and is an important medium for the transmission of pathogenic microorganisms. Air disinfection is one of effective methods for preventing respiratory infectious diseases and cross infection, and is one of important contents for quality management of public places, particularly intensive places such as schools, hospitals and markets. Indoor air sterilization should be performed by a method which is harmless to human bodies and can be continuously sterilized. The currently used methods mainly comprise four methods, namely ozone, ultraviolet rays, chemical agents, plasma and high-voltage electrostatic dust absorption disinfection. Ozone, ultraviolet radiation and chemical disinfectant disinfection methods are harmful to humans to varying degrees and are not applicable to the continuous disinfection of humans under conditions. The plasma and the high-voltage electrostatic dust collection sterilization can realize the circular sterilization of air. The high-voltage electrostatic dust collection and disinfection is based on the electrostatic dust collection principle, and the high-voltage electrostatic dust collection and disinfection can attract micro-dust in the air and reduce virus and bacteria carriers in the environment so as to achieve the disinfection purpose. Bacteria and viruses belong to the group of microorganisms, bacteria have a diameter of about 0.5 to 5 microns, and viruses are smaller and have a diameter of only 20 to 300 nanometers. Bacteria and viruses combine with the aerosol to form a microbial aerosol. The bacteria can exist in the aerosol independently, and can also be attached to the surfaces of other particles. The aerosol does brownian motion and can not be actively settled under the influence of gravity. The filter screen can generally adsorb aerosol particles with large particles of micron-size or more, but smaller particles, including viruses, are easy to leak through. The aerosol particle diameter in the air is more between 0.001 micron and 100 microns, free electrons can be easily obtained in a high-voltage electrostatic field to carry negative charges, and particles with smaller particle size are adsorbed on a dust collecting polar plate under the action of the electric field force, so that continuous disinfection and sterilization are realized in a dynamic environment, the air quality is maintained, and the surrounding environment is not polluted. However, the electrostatic adsorption dust collection plate only realizes the separation of bacteria and viruses from air, reduces the number of the bacteria and viruses in the air, and cannot kill the adsorbed bacteria and viruses immediately. Research shows that viruses and bacteria, especially new coronavirus, can survive on the surface of stainless steel, plastic, etc. for some time. If some bacteria or viruses invade the human body along with the aerosol, the bacteria or viruses can multiply greatly to cause the recontamination of air. Therefore, it is important to prepare a dust collecting plate capable of killing bacteria and viruses to purify air. In addition, the discharge process of the high-voltage electrostatic field inevitably generates ozone, and the ozone in the air is too high to be beneficial to human bodies. How to reduce the ozone concentration in the high-voltage electrostatic adsorption purification device is also a problem to be solved.
Disclosure of Invention
The invention aims to provide a sterilization, disinfection and ozone removal electrostatic adsorption electrode and a preparation method thereof, and aims to solve the problems that in the prior art, a high-voltage electrostatic adsorption purification device only adsorbs but cannot eliminate bacteria and viruses, ozone is generated in a high-voltage discharge process, and the like.
The purpose of the invention can be realized by the following technical scheme:
a sterilization, disinfection and ozone removal electrostatic adsorption electrode comprises an electrostatic dust collection electrode and a discharge electrode, wherein the two electrodes are matched for use;
wherein the electrostatic precipitation electrode includes: the surface of the electrostatic dust collection electrode plate is coated with metal particles, and a disinfecting and sterilizing metal particle coating is formed on the surface of the electrostatic dust collection electrode plate; the metal particles have the functions of sterilization and disinfection;
the discharge electrode includes: the surface of the discharge electrode plate is coated with an ozone decomposition catalyst, and an ozone decomposition catalyst coating is formed on the surface of the discharge electrode plate; the ozone decomposition catalyst has the function of eliminating ozone generated in the high-voltage discharge process of the discharge electrode.
Furthermore, the electrostatic dust removal electrode plate is made of metal materials, is made of stainless steel or copper, and is shaped like a flat plate, a curved surface or a net.
Furthermore, the metal particles are copper, silver or copper-silver alloy, the purity of the metal particles is 95% -99.9%, the size of the metal particles is in a nanometer range, and the metal copper and silver particles can well destroy protein structures of bacteria and viruses and combine with sulfur atoms in the proteins to cause the proteins to lose activity, so that the bacteria and the viruses adsorbed on the electrodes are killed.
Furthermore, the discharge electrode plate is made of metal and is made of stainless steel, tungsten, molybdenum or nickel-gold complex metal wires, and the shape of the discharge electrode plate is filiform or flat.
Furthermore, the ozone decomposition catalyst is manganese oxide, transition group oxide or the combination of the above materials in different proportions, and the catalyst coating can decompose ozone released by the discharge electrode or ozone circulating in the air, so as to reduce the ozone concentration.
Further, the thickness of the ozonolysis catalyst coating is 0.001 to 0.1 mm.
A preparation method of a sterilization, disinfection and ozone removal electrostatic adsorption electrode comprises the preparation of an electrostatic dust collection electrode and the preparation of a discharge electrode, and specifically comprises the following steps:
preparing the electrostatic dust collection electrode:
step one, obtaining a metal conductor as an electrostatic dust removal electrode plate;
step two, according to the solid-liquid ratio of 1 g: dispersing metal particles into a solvent by 30-40mL, stirring at room temperature for 30-40 minutes until the metal particles are uniformly dispersed to form sol, immersing the electrostatic dust removal electrode plate into the sol for 20-40 minutes, taking out, drying, and forming a coating with metal particles distributed on the surface of the electrostatic dust removal electrode to obtain the electrostatic dust collection electrode;
preparing the discharge electrode:
s1, obtaining a metal conductor as a discharge electrode plate;
s2, mixing the components according to the solid-liquid ratio of 1 g: dispersing an ozone decomposition catalyst in a solvent by 20-30mL, performing ultrasonic dispersion for 30-35 minutes to form sol, immersing the discharge electrode plate into the sol for 20-40 minutes, taking out, drying, and forming a coating of the ozone decomposition catalyst on the surface of the electrostatic dust removal electrode to obtain the electrostatic dust collection electrode.
Further, the solvent used in the preparation process is ethanol or ethanol water solution with any mass fraction.
The invention has the beneficial effects that:
the electrostatic precipitation electrode of the present invention comprises a metal electrode and metal particles supported on the metal electrode. Under the action of a high-voltage electrostatic field, the aerosol with bacteria and viruses is electrified and adsorbed on the dust collecting electrode under the action of an electric field force, and metal particles such as copper, silver or copper-silver alloy and the like on the load electrode can kill the adsorbed microorganisms such as bacteria, viruses and the like. Because of the small size of bacteria and viruses, the bacteria and viruses are easy to leak through the filter screen, and the small-size aerosol is easy to be adsorbed by static electricity. Therefore, the electrostatic dust collecting electrode can solve the problem that the electrostatic adsorption dust collecting polar plate in the prior art can only realize the separation of bacteria and viruses from air and can not kill the bacteria and the viruses immediately. The invention realizes the adsorption and killing of bacteria and viruses and reduces virus and bacteria carriers in the air.
The power generation electrode in the present invention includes a metal electrode and an ozone decomposition catalyst supported on the metal electrode. Ozone is generated in the ionization process, and a trace amount of ozone can sterilize and kill viruses, but excessive ozone can generate adverse effects on the respiratory system of a human body. The invention utilizes the discharge electrode to load the ozone decomposition catalyst, effectively eliminates ozone in time after the ozone is generated, and reduces the ozone concentration.
The invention has the advantages that: the electrostatic adsorption device of the polar plate can continuously, efficiently and thoroughly kill microorganisms such as broad-spectrum bacteria and viruses in the air by people under the condition, and particularly has important application in the aspect of new coronavirus. The air purifier is particularly suitable for purifying the environmental air with dense personnel and poor air circulation in hospitals, malls, carriages, cabins and the like.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a sterilization, disinfection and ozone removal electrostatic adsorption electrode of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example 1
The present embodiment provides a sterilization, disinfection and ozone removal electrostatic adsorption electrode, please refer to fig. 1, which includes an electrostatic dust collection electrode and a discharge electrode;
the electrostatic precipitation electrode includes: the electrostatic precipitation electrode plate 4, the surface of the electrostatic precipitation electrode plate coats the metal particle, form the metal particle coating 3 of sterilization on the surface of the electrostatic precipitation electrode plate;
the metal particles loaded on the electrostatic dust collection electrode can well destroy protein structures of bacteria and viruses and are combined with sulfur atoms in the proteins to cause the proteins to lose activity, so that the bacteria and the viruses adsorbed on the electrode are killed, and the problem that the electrostatic adsorption dust collection electrode plate in the prior art can only realize the separation of the bacteria and the viruses from air and can not kill the bacteria and the viruses is solved. The invention realizes the adsorption and the sterilization of bacteria and viruses and reduces virus and bacteria carriers in the air.
In this embodiment, the electrostatic collecting electrode plate is a copper plate.
In this embodiment, the dust collecting electrode coating is a metal particle layer, and the metal particle coating is composed of copper metal particles.
When the copper metal particles contact with bacteria and viruses, protein structures of the bacteria and the viruses can be damaged, and the copper metal particles are combined with sulfur atoms in the proteins, so that the proteins lose activity, and the bacteria and the viruses adsorbed on the electrodes are killed.
In this embodiment, the specific process of preparing the electrostatic precipitation electrode is as follows:
65 g of Cu nanopowder was dispersed in 2.5L of ethanol, stirred at room temperature for 30 minutes until uniformly dispersed, and the electrode plate was immersed in the above sol for 20 minutes, taken out, and irradiated under nitrogen protection for 50 minutes using a 450 watt xenon lamp to obtain the electrostatic precipitation electrode of the present example.
The discharge electrode includes: the ozone decomposition catalyst coating comprises a discharge electrode plate 1, wherein an ozone decomposition catalyst is coated on the surface of the discharge electrode plate, and an ozone decomposition catalyst coating 2 is formed on the surface of the discharge electrode plate;
in this embodiment, the discharge electrode plate is a steel plate, which is a No. 45 steel plate with a width of 20-30 cm, a length of 40-60 cm and a thickness of 3-5 mm.
The present invention provides a discharge electrode, referring to fig. 1, the discharge electrode includes: the surface of the metal electrode is coated with an ozone decomposition catalyst layer; wherein the ozone decomposition catalyst layer has an effect of decomposing ozone.
The ozone decomposition catalyst loaded on the discharge electrode can well decompose ozone generated in the high-voltage discharge process of the electrode. Ozone adsorbed by the active sites on the surface of the catalyst can be decomposed into a free oxygen molecule and a surface oxygen atom, and the surface oxygen atom reacts with another ozone molecule to generate two oxygen molecules, so that the ozone molecules are eliminated, and the problem of ozone generation by high-voltage discharge in the prior art is solved.
In this example, the discharge electrode coating is an ozone decomposition catalyst composed of a manganese oxide and titanium dioxide composite.
When the manganese oxide and titanium dioxide composite material coating contacts ozone, ozone molecules are adsorbed on active sites on the surfaces of the manganese oxide and the titanium dioxide and are decomposed into free oxygen molecules and surface oxygen atoms, and the surface oxygen atoms react with another ozone molecule to generate two oxygen molecules.
In this embodiment, the specific preparation process of the discharge electrode is as follows:
accurately weighing 10 g of titanium dioxide nano particles and 30 g of manganese oxide nano powder, dispersing in 3L of ethanol, performing ultrasonic dispersion to obtain a uniformly mixed nano particle sol, immersing the electrode plate into the sol for 20 minutes, taking out, and drying for 3 hours under the condition of 80-degree humidity of 30% to obtain an electrode plate loaded with a manganese oxide and titanium dioxide composite material, thereby preparing the discharge electrode.
Example 2
The same points as those in embodiment 1 will not be described in detail, and only the differences will be described as follows:
in this embodiment, the specific process of loading silver nanoparticles on the collecting electrode copper plate is as follows:
accurately weighing 80 g of silver nano powder, dispersing the silver nano powder in a mixed solution of 1.5L of ethanol and 1L of deionized water, ultrasonically dispersing the silver nano powder uniformly at room temperature, immersing an electrode plate into the sol for 40 minutes, taking out the electrode plate, and drying the electrode plate for 2 hours at a vacuum temperature of 100 ℃. And obtaining a copper plate of the dust collecting electrode loaded with copper nano particles to obtain the electrostatic dust removing electrode.
In this embodiment, the discharge electrode is a tungsten filament.
In this embodiment, the diameter of the electrode on the wire ranges from 0.02 mm to 0.5 mm.
In this embodiment, the specific process of the discharge electrode is as follows:
accurately weighing 1 liter of 75 g of tetrahydrate manganese chloride solution as a solution A, dissolving 1.4 liters of 25 mass percent tetramethylammonium hydroxide and 1.8 liters of 30 mass percent hydrogen peroxide in 5 liters of deionized water to prepare a solution B, pouring the solution B into the solution A, mixing, stirring for 30 minutes, immersing an electrode into the sol, and performing ultrasonic treatment for 40 minutes to obtain the electrode loaded with manganese oxide nanoparticles, thereby preparing the discharge electrode.
Example 3
The same points as those in embodiment 1 will not be described in detail, and only the differences will be described as follows:
in this embodiment, the specific process of preparing the electrostatic precipitation electrode is as follows:
accurately weighing 35 g of copper nano powder and 45 g of silver nano powder, dispersing in a mixed solution of 3L of ethanol and 1L of deionized water, carrying out ultrasonic treatment at room temperature until the nano powder is uniformly dispersed, immersing the electrode plate into the sol for 40 minutes, carrying out ultrasonic treatment at 50 ℃ for 20 minutes, taking out, and drying at 90 ℃ in vacuum for 1.5 hours. And obtaining a copper plate of the dust collecting electrode loaded with the copper and silver composite nano particles to obtain the electrostatic dust collecting electrode.
In this embodiment, the specific process of the discharge electrode is as follows:
60 g of nickel chloride hexahydrate is dissolved in 4 liters of distilled water, an electrode plate is immersed in the sol for 30 minutes, taken out and dried for 2 hours under the condition of 100 ℃ and 40 percent of humidity, and the electrode plate loaded with nickel oxide nano particles is obtained, thus obtaining the discharge electrode.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (8)
1. The electrostatic adsorption electrode for sterilizing, disinfecting and removing ozone is characterized by comprising an electrostatic dust collection electrode and a discharge electrode which are matched for use;
wherein the electrostatic precipitation electrode includes: the surface of the electrostatic dust collection electrode plate is coated with metal particles, and a disinfecting and sterilizing metal particle coating is formed on the surface of the electrostatic dust collection electrode plate;
the discharge electrode includes: the surface of the discharge electrode plate is coated with an ozone decomposition catalyst, and an ozone decomposition catalyst coating is formed on the surface of the discharge electrode plate.
2. The electrostatic adsorption electrode for sterilization, disinfection and ozone removal according to claim 1, wherein the electrostatic precipitation electrode plate is made of metal, is made of stainless steel or copper, and is shaped like a flat plate, a curved surface or a net.
3. The electrostatic adsorption electrode for sterilization, disinfection and ozone removal as claimed in claim 1, wherein said metal particles are copper, silver or copper-silver alloy, the purity of the metal particles is 95% -99.9%, and the size of the metal particles is in nano range distribution.
4. The electrostatic adsorption electrode for sterilization, disinfection and ozone removal according to claim 1, wherein the discharge electrode plate is made of metal, is made of stainless steel, tungsten, molybdenum or nickel-gold complex wire, and is in a shape of wire or flat plate.
5. The electrostatic adsorption electrode for sterilization, disinfection and ozone removal as claimed in claim 1, wherein said ozone decomposition catalyst is manganese oxide, transition group oxide or a combination of the above materials in different proportions.
6. The electrostatic adsorption electrode for sterilization, disinfection and ozone removal as claimed in claim 1, wherein said ozone decomposition catalyst coating has a thickness of 0.001-0.1 mm.
7. The method for preparing the electrostatic adsorption electrode for sterilization, disinfection and ozone removal according to claim 1, which comprises the preparation of an electrostatic dust collection electrode and the preparation of a discharge electrode, and comprises the following specific steps:
preparing the electrostatic dust collection electrode:
step one, obtaining a metal conductor as an electrostatic dust removal electrode plate;
step two, according to the solid-liquid ratio of 1 g: dispersing metal particles into a solvent by 30-40mL, stirring at room temperature for 30-40 minutes until the metal particles are uniformly dispersed to form sol, immersing the electrostatic dust removal electrode plate into the sol for 20-40 minutes, taking out, drying, and forming a coating with metal particles distributed on the surface of the electrostatic dust removal electrode to obtain the electrostatic dust collection electrode;
preparing the discharge electrode:
s1, obtaining a metal conductor as a discharge electrode plate;
s2, mixing the components according to the solid-liquid ratio of 1 g: dispersing an ozone decomposition catalyst in a solvent by 20-30mL, performing ultrasonic dispersion for 30-35 minutes to form sol, immersing the discharge electrode plate into the sol for 20-40 minutes, taking out, drying, and forming a coating of the ozone decomposition catalyst on the surface of the electrostatic dust removal electrode to obtain the electrostatic dust collection electrode.
8. The method for preparing an electrostatic adsorption electrode for sterilization, disinfection and ozone removal as claimed in claim 7, wherein the solvent used in the preparation process is ethanol or an ethanol aqueous solution with any mass fraction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113106436A (en) * | 2021-03-16 | 2021-07-13 | 武汉大学 | Preparation method of coating with new coronavirus protection effect |
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| CN109013231A (en) * | 2018-05-24 | 2018-12-18 | 北京航空航天大学 | The method of catalytic decomposition of ozone material is coated on the collecting polar plate of electrostatic outdoor fresh air or indoor air purification |
| CN109609935A (en) * | 2019-01-11 | 2019-04-12 | 东南大学 | A method of preparing high density single dispersion metal nano particle on the surface of the material |
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| CN113106436A (en) * | 2021-03-16 | 2021-07-13 | 武汉大学 | Preparation method of coating with new coronavirus protection effect |
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