CN114688668B - Combined type photocatalysis filter screen for air purifier product and preparation method thereof - Google Patents
Combined type photocatalysis filter screen for air purifier product and preparation method thereof Download PDFInfo
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- CN114688668B CN114688668B CN202210290269.2A CN202210290269A CN114688668B CN 114688668 B CN114688668 B CN 114688668B CN 202210290269 A CN202210290269 A CN 202210290269A CN 114688668 B CN114688668 B CN 114688668B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/0044—Household appliances, e.g. washing machines or vacuum cleaners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The application discloses a combined photocatalysis filter screen, which comprises at least one layer of coarse filter screen, at least one layer of fine filter screen and at least one layer of antibacterial deodorizing screen. The antibacterial deodorizing net is a honeycomb porous adsorption material with high porosity prepared by a high internal phase emulsion method, the method improves the interfacial bonding capability between the nano photocatalytic material and each component and the bonding capability between the nano photocatalytic material and different substrates, the method not only avoids the problems of secondary pollution caused by using an active carbon filter material and additional cost caused by frequently replacing a filter screen, but also can realize antibacterial and deodorizing functions by only needing to be provided with common visible light without setting a special ultraviolet light source, and can be regularly disassembled and washed with water, and the quality guarantee period is long.
Description
Technical Field
The application relates to the technical field of functional materials, in particular to a combined photocatalytic filter screen.
Background
In recent years, with the increase of haze weather in a large area, people are particularly concerned about air quality. Under the continuous haze weather, a large amount of dust particles, smog, bacteria, viruses and other harmful substances float in the air, so that diseases such as upper respiratory tract infection, bronchial asthma, infantile rickets, conjunctivitis and the like are easily caused, and the reproductive capacity is also influenced to cause fetal malformation and even lung cancer is induced. At the same time, the wide application of the decoration and finishing materials brings a large amount of chemical pollutants, which are not very small in serious pollution to the indoor environment. Therefore, the method effectively treats the indoor gaseous pollutants and ensures the indoor healthy working and living environment to be urgent, thereby leading people to have higher and higher demand on the air purifier, and the demand on the air purifier is also from simple filtration of dust and particles in the air to removal of various bacteria, viruses, harmful gases and the like.
The purification modes of the air purifier sold in the market at present are various, most of the air purifier has a filtering function, and the main purpose of the filtering is to remove particle pollutants and microorganisms in the air, and some of the air purifier also has the functions of adsorption and sterilization. Most air purifiers are different in structure and purification principle, and the most common design is that a working fan is added with multiple filter screens, and different kinds of air pollutants are filtered through the filter screens with different filter materials. When the air purifier works, circulating air flow is generated indoors through a fan in the machine, indoor polluted air and pollutants enter the device from the air inlet along with the air flow, the pollutants are removed by the multi-layer filter screen when the pollutants pass through the filter screen, and the purified air returns to the room through the air outlet of the purifier. The process is repeated continuously and circularly so as to achieve the purpose of purifying the indoor air.
The multiple filter screens of the air purifier are core parts of the air purifier, and the performance and the quality of the multiple filter screens directly influence the filtering precision and the purifying efficiency of the air purifier, and play a vital role in the overall performance of the air purifier. The filter screen of the air purifier is generally composed of a plurality of filter screens with different functions, an outermost filter screen is also called a coarse filter screen and is used for filtering large pollutants such as dust particles and hairs so as to prevent the large particles from entering a second layer of active carbon filter screen, the second layer is generally an active carbon filter screen which can filter, adsorb toxic gases such as formaldehyde and benzene, the third layer is an antibacterial filter screen which can inhibit and kill bacteria and viruses, the fourth layer is an innermost filter screen which can filter finer particles in the air pollutants, and the particles generated by the dust generating property of the active carbon filter screen are blown into indoor air, and the other air purifier is also provided with a humidifying filter screen. At present, the filtering technology of the first layer of coarse filter screen and the fourth layer of fine filter screen is simple and mature, the second layer and the third layer are cores and keys, the filtering main body is adopted, the service lives of the second layer and the third layer of filter screens are generally several months, the filter screens need to be replaced frequently, and if the filter screens are too complex in design, the replacement is inconvenient. The most widely used filter body in recent years is an activated carbon filter screen, and a small amount of photocatalyst filter screen is matched.
The principle of the active carbon filter screen, namely the most common air purifying filter screen material in the market at present, is that the surfaces of active carbon particles are provided with a plurality of micropores, and when the active carbon filter screen contacts with chemical pollutants, bacteria, particulate matters and the like in the air, the pollutants are adsorbed by the micropores on the surfaces of the active carbon, so that the active carbon filter screen has the effects of removing peculiar smell and purifying the air. The purification technology has the advantages that the adsorption capacity is strong, most pollutants in indoor air can be adsorbed by the activated carbon, and the purification technology has the defects that the purification technology can reach a saturated state after one month generally, has no long-term formaldehyde removal performance, and can be separated out along with the change of environment, such as temperature rise, wind speed increase and the like, so that secondary pollution is easy to cause, and the pollutants cannot be thoroughly removed.
In addition to activated carbon filters, a photocatalyst filter screen has been developed in recent years: unlike the adsorption and desorption principle of active carbon, the photocatalyst filter screen is prepared by using TiO 2 (currently, it is common to use TiO 2 Mainly) the photocatalysis technology is applied to the filter screen, and after ultraviolet light activation, the toxic and harmful gases such as formaldehyde, benzene series, nitrogen oxides and the like in the air, bacteria, microorganisms and the like can be converted into pollution-free CO 2 And H 2 O, the polluted gas is continuously degraded, so that the long-acting purification function is realized, and the titanium dioxide does not change under the illumination condition and only plays a role in catalytic decomposition, so that the service life is long. Although the photocatalysis technology has the advantages of high efficiency, no toxicity, no harm, low cost and the like in purifying indoor air, mostThe adsorption capacity of (2) is very effective, electrons existing in the molecular structure are required to transition, the energy requirement is required to meet the condition of high energy requirement, the degradation of organic pollutants is limited, the space with high pollutant accumulation concentration is weak, the photocatalytic purification capacity is weak, and TiO 2 Only in response to ultraviolet light, indoor polluted gas is difficult to effectively degrade under the condition of visible light, and meanwhile, strong acid and alkali are needed to participate in the preparation process, so that the environmental burden is increased.
Disclosure of Invention
The application aims to solve the problems and provide a combined type photocatalysis filter screen, the combined type photocatalysis filter screen has simple structural design and strong functions, toxic and harmful gases such as formaldehyde and benzene are removed, the functions of antibiosis, sterilization, mildew prevention and the like are integrated into a whole, an activated carbon filter screen is not adopted any more, the problems of secondary adsorption-desorption pollution and frequent filter screen replacement caused by the traditional activated carbon adsorption filter screen are abandoned, the key technology of photocatalysis air purifying materials is broken through, harsh use conditions such as ultraviolet light and the like are not needed, and the combined type photocatalysis filter screen can have long-acting and lasting purifying capacity under the action of common visible light.
The application realizes the above purpose through the following technical scheme:
a combined type photocatalysis filter screen is characterized by comprising at least one layer of coarse filter screen, at least one layer of fine filter screen and at least one layer of antibacterial deodorizing screen.
The further scheme is that the coarse filter screen and the fine filter screen are integrally arranged, and the antibacterial deodorizing net is independently arranged and is arranged at the air outlet of the fine filter screen.
The further proposal is that the coarse filter screen is made of PP, PE, PET material, and the mesh size is 2-4mm; the fine filter screen is an efficient HEPA filter screen with the H12 grade or more, the filtering efficiency of the fine filter screen on particles with the particle size of 0.3 mu m is higher than 99.9%, and the fine filter screen is pleated.
The further scheme is that the coarse filter screen and the fine filter screen are integrally arranged, edge sealing treatment is carried out, edge sealing materials are one of paper, plastic, metal and spun-laced cotton, and the edge sealing is fixed through hot melt adhesive.
The antibacterial deodorizing net is prepared by an emulsion template method, and the preparation method is as follows:
adding 5-30w/v% of sorbitan oleate relative to the mass volume fraction of the continuous phase into an organic continuous phase of 50-60vol% of styrene and 40-50vol% of divinylbenzene, and uniformly mixing;
heating the mixture to 55 ℃ and continuously stirring, and adding an aqueous dispersion phase containing 48 weight percent of nano carbon nitride, 35 weight percent of nano zinc oxide, 2 weight percent of potassium persulfate and 1.11 weight percent of anhydrous calcium chloride into the mixed solution;
adjusting the volumes of the continuous phase and the disperse phase to form a high internal phase emulsion with the volume fraction of the disperse phase of 80-90%; and after the water phase is completely dripped, continuously stirring for 10 minutes to obtain highly uniform emulsion;
transferring the obtained high internal phase emulsion into a mould with a fixed shape, sealing, placing the mould into a water bath with the temperature of 60 ℃ for polymerization for 48 hours, placing the material obtained by polymerization into an extractor for extraction with absolute ethyl alcohol for 12 hours after the reaction, and drying the material at the temperature of 60 ℃ for 24 hours to obtain the antibacterial deodorizing net.
The further proposal is that after drying, the product is fixed in a frame for edge sealing; wherein, the edge sealing material adopts one of aluminum profile, paper frame, sponge strip or stainless steel.
The nano carbon nitride is modified by single-atom zinc intercalation, the grain diameter is 20-100nm, and the light absorption range is more than 420nm; the purification efficiency of indoor pollutants of formaldehyde, toluene and nitrogen oxides is more than or equal to 95 percent, and the efficiency retention rate is more than or equal to 90 percent within 3 months.
The further proposal is that the nano zinc oxide is in an intercalation petal shape, and the grain diameter is 30-80nm; the antibacterial rate to the escherichia coli is more than or equal to 99 percent, and the antibacterial rate to the staphylococcus aureus is more than or equal to 99 percent.
The application also provides an air purifier, which comprises a purifier shell, wherein the combined photocatalytic filter screen, the lighting module and the air duct module are arranged in the purifier shell;
the illumination module is arranged in the middle of the inner wall of the purifier shell close to the antibacterial deodorizing filter screen, and a common LED illumination lamp is adopted to realize visible light response;
the air duct module is arranged at the air inlet, and adopts a common fan to ensure that air enters from the coarse filter screen, passes through the fine filter screen and the antibacterial deodorizing screen and is blown out from the inside of the antibacterial deodorizing screen.
The application also provides an application of the combined photocatalytic filter screen in the field of air purification.
The application has the beneficial effects that:
the combined filter screen of the application can realize visible light response, and the initial concentration of formaldehyde, benzene and NH is 3 times of the limit value of the national standard (GB/T18883 and GB/T18801) in 12 hours 3 The purification efficiency of indoor pollutants such as nitrogen oxides is more than or equal to 90%, the efficiency retention rate in 3 months is more than or equal to 90%, and the antibacterial rate of bacteria such as staphylococcus aureus, escherichia coli, candida albicans and the like>99%, and has self-cleaning function and long-acting air purifying capacity.
The photocatalysis combined filter screen has the core advantages that: the method improves the interfacial bonding capability between the nano photocatalytic material and each component and the bonding capability between different substrates, not only avoids the problems of secondary pollution caused by using an active carbon filter material and extra cost caused by frequently replacing a filter screen, but also is superior to the problems that the photocatalyst material is attached to the filter screen by means of spraying, coating and the like, so that active substances are easy to fall off and the like, which are adopted in the market, and is different from the problems of high cost, heavy mass and the like of a photocatalyst deodorizing filter element taking a common aluminum honeycomb core, foamed metal and the like as a carrier.
The antibacterial deodorizing filter screen provided by the application only needs to be provided with common visible light, can realize antibacterial deodorizing functions without a special ultraviolet light source, and can be periodically disassembled and washed with water, so that the shelf life is long.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, based on the examples herein, which are within the scope of the application as defined by the claims, will be within the scope of the application as defined by the claims.
Example 1
1) Preparation of an antibacterial and deodorizing integrated filter screen:
adding 5-30w/v% of sorbitan oleate relative to the mass volume fraction of the continuous phase into an organic continuous phase of 50-60vol% of styrene and 40-50vol% of divinylbenzene, and uniformly mixing;
heating the mixture to 55 ℃ and continuously stirring, and adding an aqueous dispersion phase containing 48 weight percent of nano carbon nitride, 35 weight percent of nano zinc oxide, 2 weight percent of potassium persulfate and 1.11 weight percent of anhydrous calcium chloride into the mixed solution;
adjusting the volumes of the continuous phase and the disperse phase to form a high internal phase emulsion with the volume fraction of the disperse phase of 80-90%; and after the water phase is completely dripped, continuously stirring for 10 minutes to obtain highly uniform emulsion;
transferring the obtained high internal phase emulsion into a mould with a fixed shape, sealing, placing the mould into a water bath with the temperature of 60 ℃ for polymerization for 48 hours, placing the material obtained by polymerization into an extractor for extraction with absolute ethyl alcohol for 12 hours after the reaction, and drying the material at the temperature of 60 ℃ for 24 hours to obtain the antibacterial deodorizing net.
After drying, fixing the mixture in a frame for edge sealing; wherein, the edge sealing material adopts one of aluminum profile, paper frame, sponge strip or stainless steel.
The nano carbon nitride is modified by single-atom zinc intercalation, the particle size is 20-100nm, and the light absorption range is more than 420nm; the purification efficiency of indoor pollutants of formaldehyde, toluene and nitrogen oxides is more than or equal to 95 percent, and the efficiency retention rate is more than or equal to 90 percent within 3 months.
The further proposal is that the nano zinc oxide is in an intercalation petal shape, and the grain diameter is 30-80nm; the antibacterial rate to the escherichia coli is more than or equal to 99 percent, and the antibacterial rate to the staphylococcus aureus is more than or equal to 99 percent.
2) Preparation of combined filter screen and installation of air purifier
(1) Selecting a coarse filter screen: PET net, F7 primary filter screen, sieve mesh size 2-4mm;
(2) selecting a fine filter screen: an H12 grade high efficiency HEPA filter screen (the filtering efficiency for particles with the particle diameter of 0.3 mu m is higher than 99.9 percent) is pleated;
(3) the coarse filter screen and the fine filter screen are combined and subjected to edge sealing treatment, and the edge sealing material is fixed by adopting plastic through hot melt adhesive.
(4) An air duct module is arranged above the inner wall of the air purifier, an LED lamplight source is arranged below the inner wall of the air purifier, a combined filter screen is installed, and an air purifier shell is installed.
Comparative example 1
1) Preparation of an antibacterial and deodorizing integrated filter screen:
the antibacterial and deodorizing integrated filter according to comparative example 1 was prepared in the same manner as in example 1, and in the preparation of the composite material according to example 1, the carbon nitride content of the effective component for removing indoor pollutants such as formaldehyde, benzene, NH3, nitrogen oxides and the like was increased to 3.5wt%, and the remaining steps were the same as in example 1.
2) Preparation of combined filter screen and installation of air purifier:
the preparation of the combined filter screen and the installation of the air purifier were the same as in example 1.
Comparative example 2
1) Preparation of an antibacterial and deodorizing integrated filter screen:
the antibacterial and deodorizing integrated filter mesh of comparative example 2 was prepared in the same manner as in example 1, and in the preparation of the composite material of example 1, the content of nano zinc oxide, which is an active ingredient for removing staphylococcus aureus, escherichia coli and candida albicans, was increased to 2.5wt%, and the remaining steps were the same as in example 1.
2) Preparation of combined filter screen and installation of air purifier
The preparation of the combined filter screen and the installation of the air purifier were the same as in example 1.
Comparative example 3
Preparation of an antibacterial and deodorizing integrated filter screen:
the antibacterial and deodorizing integrated filter according to comparative example 3 was prepared in the same manner as in example 1.
2) Preparation of combined filter screen and installation of air purifier
The procedure of selecting the coarse filter screen, selecting the fine filter screen, combining the coarse filter screen and the fine filter screen, and performing edge sealing treatment is the same as that of the embodiment 1, and in the process of installing the purifier, a fan is arranged above the inner wall of the air purifier, and an LED lamplight source is not arranged below the inner wall of the purifier.
The combined filter screens prepared in the examples and the comparative examples were subjected to performance test by the following method:
removing formaldehyde, benzene and NH 3 The purification rate of target pollutants such as nitrogen oxides is carried out according to GB/T18801-2015 air purifier standard, the effect of removing staphylococcus aureus, escherichia coli and candida albicans is tested according to GB21551.3-2010 requirements of household and similar purpose electric appliances on bacteriostasis, sterilization and purification function air purifier, and the measurement results are shown in the following table 1.
TABLE 1 antibacterial and deodorant Performance test results
| Test item | Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Formaldehyde adsorption rate (%) | 97 | 82 | 96.6 | 85 |
| Toluene adsorption Rate (%) | 96.8 | 85.3 | 95.8 | 82.9 |
| Nitrogen oxide adsorption rate (%) | 98.5 | 85.8 | 97.9 | 79.8 |
| Coli antibacterial efficiency (%) | 98 | 97 | 92 | 94 |
| Staphylococcus aureus antibacterial rate (%) | 99 | 98 | 90 | 93.8 |
As can be seen from the results of examples and comparative examples, the combined filter screen and the air purifier product with the efficient sterilization and deodorization functions are obtained by reasonably controlling the proportion and the components of each component in the formula by adopting the combined filter screen in the application. When the formulations and preparation methods of comparative example 1, comparative example 2 and comparative example 3 were used, the antibacterial deodorizing properties of the obtained products did not meet the use requirements.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. Moreover, any combination of the various embodiments of the application can be made without departing from the spirit of the application, which should also be considered as disclosed herein.
Claims (2)
1. The combined type photocatalysis filter screen is characterized by comprising at least one layer of coarse filter screen, at least one layer of fine filter screen and at least one layer of antibacterial deodorizing screen;
the rough filter screen and the fine filter screen are integrally arranged, and the antibacterial deodorizing screen is independently arranged and is arranged at the air outlet of the fine filter screen;
the coarse filter screen is made of PP, PE, PET material, and the size of the sieve holes is 2-4mm; the fine filter screen is an efficient HEPA filter screen with the H12 grade or more, the filtering efficiency of the fine filter screen on particles with the particle size of 0.3 mu m is higher than 99.9 percent, and the fine filter screen is pleated;
the rough filter screen and the fine filter screen are integrally arranged, edge sealing treatment is carried out, edge sealing materials are one of paper, plastic, metal and spun-laced cotton, and the edge sealing is fixed through hot melt adhesive;
the antibacterial deodorizing net is prepared by an emulsion template method, and the preparation method is as follows:
adding 5-30w/v% of sorbitan oleate relative to the mass volume fraction of the continuous phase into an organic continuous phase of 50-60vol% of styrene and 40-50vol% of divinylbenzene, and uniformly mixing;
heating the mixture to 55 ℃ and continuously stirring, and adding an aqueous dispersion phase containing 48 weight percent of nano carbon nitride, 35 weight percent of nano zinc oxide, 2 weight percent of potassium persulfate and 1.11 weight percent of anhydrous calcium chloride into the mixed solution;
adjusting the volumes of the continuous phase and the disperse phase to form a high internal phase emulsion with the volume fraction of the disperse phase of 80-90%; and after the water phase is completely dripped, continuously stirring for 10 minutes to obtain highly uniform emulsion;
transferring the obtained high internal phase emulsion into a mould with a fixed shape, sealing, placing the mould into a water bath with the temperature of 60 ℃ for polymerization reaction for 48 hours, placing a material obtained by the polymerization reaction into an extractor, extracting the material with absolute ethyl alcohol for 12 hours after the reaction, and drying the material at the temperature of 60 ℃ for 24 hours to obtain the antibacterial deodorizing net;
after drying, fixing the mixture in a frame for edge sealing; wherein, the edge sealing material adopts one of aluminum profile, paper frame, sponge strip or stainless steel;
the nano carbon nitride is modified by single-atom zinc intercalation, the particle size is 20-100nm, and the light absorption range is more than 420nm; the purification efficiency of indoor pollutants of formaldehyde, toluene and nitrogen oxides is more than or equal to 95 percent, and the efficiency retention rate is more than or equal to 90 percent within 3 months;
the nano zinc oxide is in an intercalation petal shape, and the particle size is 30-80nm; the antibacterial rate to the escherichia coli is more than or equal to 99 percent, and the antibacterial rate to the staphylococcus aureus is more than or equal to 99 percent.
2. An air purifier is characterized by comprising a purifier shell, wherein the combined photocatalytic filter screen, the lighting module and the air duct module are arranged in the purifier shell;
the illumination module is arranged in the middle of the inner wall of the purifier shell close to the antibacterial deodorizing filter screen, and a common LED illumination lamp is adopted to realize visible light response;
the air duct module is arranged at the air inlet, and adopts a common fan to ensure that air enters from the coarse filter screen, passes through the fine filter screen and the antibacterial deodorizing screen and is blown out from the inside of the antibacterial deodorizing screen.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60232223A (en) * | 1984-04-28 | 1985-11-18 | Seibu Giken:Kk | Filter element |
| US5189070A (en) * | 1992-05-29 | 1993-02-23 | Shell Oil Company | Process for preparing low density porous crosslinked polymeric materials |
| CN105148972A (en) * | 2015-09-10 | 2015-12-16 | 上海大学 | Preparation method and application of novel catalyst for reducing nitrate nitrogen in water under visible light condition |
| CN106029717A (en) * | 2013-12-17 | 2016-10-12 | 路博润先进材料公司 | Surfactant responsive emulsion polymerization micro-gels |
| CN206254571U (en) * | 2016-11-25 | 2017-06-16 | 上海哈克过滤科技股份有限公司 | Filter paper edge sealing fixture |
| WO2018096103A1 (en) * | 2016-11-25 | 2018-05-31 | Cambridge Enterprise Limited | Photocatalyst and photocatalytic methods |
| CN207945755U (en) * | 2018-02-12 | 2018-10-09 | 四川旭航新材料有限公司 | A kind of visible light photocatalysis component and fresh air system for fresh air system |
| JP2019099783A (en) * | 2017-11-30 | 2019-06-24 | 旭化成株式会社 | Antibacterial and antifungal coating material, algae-proof coating material, production method of antibacterial and antifungal member, and production method of algicidal member |
| CN209662859U (en) * | 2019-03-07 | 2019-11-22 | 山西新华化工有限责任公司 | Composite filter element for car purification |
| CN111659453A (en) * | 2020-07-17 | 2020-09-15 | 煤炭科学技术研究院有限公司 | Visible light-ozone concerted catalysis catalyst and preparation method thereof |
| JP2020157283A (en) * | 2019-03-28 | 2020-10-01 | 公立大学法人山陽小野田市立山口東京理科大学 | Method for producing photocatalyst |
| CN112759253A (en) * | 2020-12-31 | 2021-05-07 | 中星(广州)纳米材料有限公司 | Inorganic nano composite antibacterial material for ceramics and preparation method and application thereof |
| CN113262808A (en) * | 2021-05-24 | 2021-08-17 | 江汉大学 | Water-soluble graphite-phase carbon nitride nanosheet catalyst for efficiently removing formaldehyde at room temperature and preparation method thereof |
| CN113926443A (en) * | 2021-10-20 | 2022-01-14 | 深圳市康弘环保技术有限公司 | Multi-element composite material for visible light catalytic aldehyde removal, preparation method and air purifier |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2932184B1 (en) * | 2008-06-09 | 2010-07-30 | Commissariat Energie Atomique | HIGH MECHANICAL POLYHIPED MATERIAL, PROCESS FOR PREPARING THE SAME, USEFUL EMULSION FOR ITS PREPARATION AND ARTICLE CONSISTING OF SUCH A MATERIAL |
| US8327856B2 (en) * | 2010-03-30 | 2012-12-11 | Celanese Acetate Llc | Environmentally degradable cigarette filter |
| CN113694639B (en) * | 2020-05-20 | 2023-01-13 | 淳靖股份有限公司 | Non-circular filter core material and rewinding method thereof |
-
2022
- 2022-03-23 CN CN202210290269.2A patent/CN114688668B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60232223A (en) * | 1984-04-28 | 1985-11-18 | Seibu Giken:Kk | Filter element |
| US5189070A (en) * | 1992-05-29 | 1993-02-23 | Shell Oil Company | Process for preparing low density porous crosslinked polymeric materials |
| CN106029717A (en) * | 2013-12-17 | 2016-10-12 | 路博润先进材料公司 | Surfactant responsive emulsion polymerization micro-gels |
| CN105148972A (en) * | 2015-09-10 | 2015-12-16 | 上海大学 | Preparation method and application of novel catalyst for reducing nitrate nitrogen in water under visible light condition |
| CN206254571U (en) * | 2016-11-25 | 2017-06-16 | 上海哈克过滤科技股份有限公司 | Filter paper edge sealing fixture |
| WO2018096103A1 (en) * | 2016-11-25 | 2018-05-31 | Cambridge Enterprise Limited | Photocatalyst and photocatalytic methods |
| JP2019099783A (en) * | 2017-11-30 | 2019-06-24 | 旭化成株式会社 | Antibacterial and antifungal coating material, algae-proof coating material, production method of antibacterial and antifungal member, and production method of algicidal member |
| CN207945755U (en) * | 2018-02-12 | 2018-10-09 | 四川旭航新材料有限公司 | A kind of visible light photocatalysis component and fresh air system for fresh air system |
| CN209662859U (en) * | 2019-03-07 | 2019-11-22 | 山西新华化工有限责任公司 | Composite filter element for car purification |
| JP2020157283A (en) * | 2019-03-28 | 2020-10-01 | 公立大学法人山陽小野田市立山口東京理科大学 | Method for producing photocatalyst |
| CN111659453A (en) * | 2020-07-17 | 2020-09-15 | 煤炭科学技术研究院有限公司 | Visible light-ozone concerted catalysis catalyst and preparation method thereof |
| CN112759253A (en) * | 2020-12-31 | 2021-05-07 | 中星(广州)纳米材料有限公司 | Inorganic nano composite antibacterial material for ceramics and preparation method and application thereof |
| CN113262808A (en) * | 2021-05-24 | 2021-08-17 | 江汉大学 | Water-soluble graphite-phase carbon nitride nanosheet catalyst for efficiently removing formaldehyde at room temperature and preparation method thereof |
| CN113926443A (en) * | 2021-10-20 | 2022-01-14 | 深圳市康弘环保技术有限公司 | Multi-element composite material for visible light catalytic aldehyde removal, preparation method and air purifier |
Non-Patent Citations (2)
| Title |
|---|
| 光催化三维蜂窝陶瓷网及光催化空气净化器的研制;谷昌军;赵春桃;孔令仁;;机械制造与自动化(第02期);74-75+99 * |
| 活性炭复载光催化防雾霾空气净化口罩的研制;李一帆;;当代化工研究(第09期);85-86 * |
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