CN112146197A - Noise elimination disinfection self-purification air purifier - Google Patents
Noise elimination disinfection self-purification air purifier Download PDFInfo
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- CN112146197A CN112146197A CN202010960188.XA CN202010960188A CN112146197A CN 112146197 A CN112146197 A CN 112146197A CN 202010960188 A CN202010960188 A CN 202010960188A CN 112146197 A CN112146197 A CN 112146197A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 43
- 238000000746 purification Methods 0.000 title claims abstract description 35
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 17
- 230000008030 elimination Effects 0.000 title claims abstract description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000010936 titanium Substances 0.000 claims abstract description 55
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 55
- 239000006260 foam Substances 0.000 claims abstract description 54
- 230000001954 sterilising effect Effects 0.000 claims abstract description 41
- 238000009713 electroplating Methods 0.000 claims abstract description 40
- 239000002071 nanotube Substances 0.000 claims abstract description 31
- 229910005544 NiAg Inorganic materials 0.000 claims abstract description 19
- 230000000249 desinfective effect Effects 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 23
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 19
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 7
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005238 degreasing Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 7
- 239000005416 organic matter Substances 0.000 abstract description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 24
- 238000007747 plating Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 10
- 241000700605 Viruses Species 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004887 air purification Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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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
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
- A61L9/205—Ultra-violet radiation using a photocatalyst or photosensitiser
-
- 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01D53/88—Handling or mounting catalysts
-
- 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
- F24F13/24—Means for preventing or suppressing noise
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
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- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
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- Public Health (AREA)
- Filtering Materials (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a noise elimination, sterilization and disinfection self-purification air purifier which comprises a shell, a fresh air inlet, an air supply outlet, a return air inlet and an air exhaust outlet which are arranged at two ends of the shell, a coarse filter and a sterilization and disinfection self-purification filter in the direction of the fresh air inlet in the shell, a fresh air side fan system, a coarse filter of the return air inlet and an air exhaust side fan system. Wherein, the sterilization and disinfection self-purification filter is formed by forming TiO on the inner and outer surfaces of pores by a gradient titanium foam plate2Nanotube and then electroplating to deposit nanometer NiAg alloy. The noise elimination, sterilization and self-purification air purifier has simple structureHas high sterilizing and disinfecting capacity and organic matter desorbing capacity.
Description
Technical Field
The invention belongs to the field of air purification, and relates to a noise elimination, sterilization and disinfection self-purification air purifier.
Background
The existing air purifier mainly achieves the air purification effect through the filtering effect of a purifier filter and the forced exhaust of indoor air. The literature, "application of chemical filter in SPF-level laboratory air conditioner" indicates that most of the existing air cleaners are made of materials with high specific surface area, such as activated carbon, alumina, zeolite, silica gel, and ion exchange resinThe material mainly depends on the adsorption effect, and the adsorption capacity is continuously weakened along with the use of the material, and the filter is scrapped after the adsorption capacity is weakened to a certain degree. The filter needs to be cleaned and replaced regularly, the disassembly is troublesome, the maintenance period is short, and if the filter is not replaced in time, the purification effect is reduced and even secondary pollution is caused. The 2017800601768 patent improves the efficiency of trapping particles in air by the structural design of the purifier filter, but the structure is complex and still physical adsorption. The filter usually filters tiny particulate matters, pollen, bacteria, viruses, industrial waste gas, dust and the like in the air, the physical adsorption of the common filter can only meet the simple filtering function, the industrial waste gas is difficult to treat, especially under the condition of outbreak of new crown epidemic situation, the air cannot be further improved by the filter, and bacteria and viruses can be mixed in the air and enter the room to cause harm to people. CN111169256A discloses a new energy automobile air conditioner and filter, adopts cold catalyst to make the decomposition layer, and the sterilization layer is filled with potassium permanganate, though can decompose the adsorbed organic matter, has higher function of purifying bacteria and virus, the structure is still complicated, and potassium permanganate is easy to decompose, does not have the function of killing bacteria and virus after decomposition. CN 111265685 a discloses a sterilization device and an air conditioning box of an automobile, which are provided with at least one sterilization component of a deep ultraviolet LED lamp that is manually switched on or switched off automatically, but the sterilization component has a complex structure, needs an external constant current power supply, and is easy to leak under the irradiation of an ultraviolet lamp, thereby causing influence on people. CN 210568860U discloses a marine combined air conditioner with foamed nickel silencing, filtering and sterilizing functions, which adopts foamed nickel silencing and filtering and TiO2Photo-catalytic sterilization, however, nickel foam and TiO2Not tightly bound and TiO2The self-body has no sterilization function and needs an additional ultraviolet light source.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a noise-elimination sterilization self-purification air purifier. The sterilizing and disinfecting self-purifying filter is used for effectively decomposing adsorbed organic matters and efficiently killing bacteria and viruses. The filter has long service life, does not need an ultraviolet light source, does not need to be disassembled and cleaned, and can effectively decompose adsorbed organic matters and efficiently kill bacteria and viruses.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a noise elimination sterilization self-purification air purifier comprises: the air conditioner comprises a shell, a fan and a fan, wherein a fresh air inlet and an exhaust air outlet are arranged at the first end of the shell, and an air supply outlet and a return air inlet are arranged at the second end of the shell, wherein the air supply outlet and the exhaust air outlet are coaxially arranged; a first coarse filter, a sterilization and disinfection self-purification filter and an exhaust side fan system are sequentially arranged in the shell from near to far near the fresh air inlet; the second coarse filter and the fresh air side fan system are sequentially arranged in the shell from near to far and close to the return air inlet, the sterilization and disinfection self-purification filter takes a gradient titanium foam plate as a substrate, and TiO is formed on the outer surface and the inner wall of the through hole2Nanotube and then electroplating to deposit nanometer NiAg alloy.
Preferably, the first coarse filter and the second coarse filter are both formed by fixedly wrapping activated carbon particles between the coarse filtration non-woven fabric layer and the support non-woven fabric layer.
Preferably, the gradient titanium foam plate has a gradient structure with continuously-changed density of through holes and increased hole density along the air flow direction.
Preferably, the gradient titanium foam plate is rectangular and has a thickness of 2-5 mm.
Preferably, the first coarse filter, the second coarse filter and the sterilizing and disinfecting self-cleaning filter can be independently mounted and dismounted.
Preferably, in the above-mentioned air purifier with noise elimination, sterilization, disinfection and self-purification, the method for preparing the sterilization, disinfection and self-purification filter (7) comprises the following steps:
(1) cleaning the gradient titanium foam plate (13); the cleaning treatment specifically comprises the following steps: ultrasonic degreasing in acetone for 15 minutes, absolute ethyl alcohol cleaning, 1mol/L HF treatment for 10 minutes, secondary distilled water ultrasonic cleaning for 3 times and drying;
(2) anodizing the gradient titanium foam plate (13) treated in the step (1) in electrolyte; then taking out, washing with deionized water, and dryingRoasting at 500-600 ℃ for 3 hours in a muffle furnace to form TiO on the outer surface of the gradient titanium foam plate (13) and the inner wall of the through hole2A nanotube (14);
wherein the electrolyte comprises 0.5-1% of HF and 1mol/L of H2SO4(ii) a The anodic oxidation condition is 20V of potential and 30-120min of time;
(3) taking the gradient titanium foam plate (13) treated in the step (2) as a cathode, electroplating for 30-90 min in electroplating solution at room temperature, washing with deionized water after electroplating, drying to obtain a sterilizing and disinfecting self-purification filter (7),
wherein the electroplating solution comprises 0.01mol/L of silver nitrate, 0.01mol/L of nickel sulfate and 20g/L of boric acid; the pH of the electroplating solution is 4.4, and the current density of the electroplating is 5mA/cm2。
The invention has the beneficial effects that: the coarse filter adsorbs large particles and gases in the air. The gradient titanium foam plate can attenuate the sound wave vibration of mixed air, and sound energy rubs in porous gaps, so that the passing sound waves are weakened, and the sound attenuation and noise reduction effects are achieved. Meanwhile, the gradient foam titanium plate adsorbs organic matters and bacteria and viruses in the air to form gradient organic matters and bacteria and viruses, is easy to diffuse and transfer mass and is connected with NiAg/TiO on the inner surface and the outer surface of the gradient foam titanium plate2The nanotube catalyst acts to improve the purification effect. The inner and outer surfaces of the foamed titanium plate form NiAg/TiO2Nanotubes, TiO2NiAg alloy electroplated and deposited on surface of nanotube can improve TiO2Electron conducting capacity of nanotube and NiAg alloy to TiO2Synergistic enhancement of TiO2The catalytic performance to organic matters, and simultaneously, the organic matters and the bacteria and viruses adsorbed by the gradient foam titanium plate are adsorbed and transferred to NiAg/TiO2Oxidizing organic matter to CO on the surface of the nanotube under the dark room condition2And water, proteins of bacteria and viruses are coated with NiAg alloy or NiAg/TiO2Destruction or oxidation of nanotubes to CO2NiAg/TiO for purifying, sterilizing and disinfecting in air purifier with functions of water mixing, noise elimination, sterilization, disinfection and self-purification2The nano tube is not consumed, the noise elimination, sterilization and disinfection self-purification air purifier has a simple structure and has higher capabilities of sterilization, disinfection and organic matter desorption.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural view of a self-cleaning air purifier with noise elimination, sterilization and disinfection functions, according to the present invention;
FIG. 2 is a sectional view of the coarse filter in the air purifier for noise elimination, sterilization, disinfection and self-purification;
FIG. 3 is a sectional view of the self-cleaning filter for noise elimination, sterilization, disinfection and self-cleaning in the air purifier provided by the present invention;
reference numerals: 1. a housing; 2. a fresh air inlet; 3. an air supply outlet; 4. an air return inlet; 5. an exhaust outlet; 6. a first coarse filter; 7. sterilizing and disinfecting the self-purification filter; 8. a fresh air side fan system; 9. an exhaust side fan system; 10. coarse filtering the non-woven fabric layer; 11. supporting a non-woven fabric layer; 12. activated carbon particles; 13. a gradient titanium foam plate; 14. TiO 22A nanotube; 15. nano NiAg alloy; 16. and a second coarse filter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1, the present invention provides a noise-elimination, sterilization, disinfection, and self-purification air purifier, comprising: the air conditioner comprises a shell 1, wherein a fresh air inlet 2 and an exhaust air outlet 5 are arranged at a first end of the shell 1, and an air supply outlet 3 and an air return inlet 4 are arranged at a second end of the shell 1, wherein the air supply outlet 3 and the exhaust air outlet 5 are coaxially arranged, and the air return inlet 4 and the fresh air inlet 2 are coaxially arranged; a first coarse filter 6, a sterilization and disinfection self-purification filter 7 and an exhaust side fan system 9 are sequentially arranged in the shell 1 from near to far and close to the fresh air inlet 2; and a second coarse filter 16 and a fresh air side fan system 8 are sequentially arranged in the shell 1 from near to far and close to the return air inlet 4.
In the preferred embodiment of the present invention, as shown in fig. 2, each of the first coarse filter 6 and the second coarse filter 16 is composed of activated carbon particles 12 fixedly wrapped between the coarse filter nonwoven fabric layer 10 and the support nonwoven fabric layer 11.
In the preferred embodiment of the present invention, the through holes inside the gradient titanium foam sheet 13 are in a gradient structure with a density varying continuously and a density of holes increasing in the direction of air flow. The gradient titanium foam plate 13 is rectangular in shape and 2-5mm in thickness.
In the preferred embodiment of the present invention, the first coarse filter 6, the second coarse filter 16 and the sterilizing self-cleaning filter 7 can be independently mounted and dismounted.
As shown in fig. 3, in the noise-elimination sterilizing self-purification air purifier provided by the present invention, the sterilizing self-purification filter 7 is formed by forming TiO on the outer surface and the inner wall of the through hole by using the gradient titanium foam plate 13 as the substrate2Nanotube 14, then electroplating and depositing nanometer NiAg alloy 15.
The method for preparing the sterilizing and disinfecting self-cleaning filter 7 according to the present invention will be further described with reference to the following examples.
Example 1
(1) Pretreatment of the gradient titanium foam plate: ultrasonic degreasing in acetone for 15 minutes, absolute ethyl alcohol cleaning, 1mol/L HF treatment for 10 minutes, secondary distilled water ultrasonic cleaning for 3 times and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; composition of the electrolyte: 1% by weight of HF, 1mol/L of H2SO4The electrolytic potential is 20V, and the electrolytic time is 60 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing with deionized water after the electroplating is finished, and drying to obtain the product with the NiAg/TiO loaded on the surface2A sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst;
composition of the plating solution:
AgNO3 0.01mol/L
NiSO4 0.01mol/L
H3BO3 20g/L
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
Electroplating time is 30 minutes.
Example 2:
(1) pretreatment of the gradient titanium foam plate: ultrasonic degreasing in acetone for 15 minutes, absolute ethyl alcohol cleaning, 1mol/L HF treatment for 10 minutes, secondary distilled water ultrasonic cleaning for 3 times and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; composition of the electrolyte: 1% by weight of HF, 1mol/L of H2SO4The electrolytic potential is 20V, and the electrolytic time is 60 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) preparation of the filter: taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing and drying after the electroplating is finished by using ionized water to obtain the titanium plate with the NiAg/TiO loaded surface2A sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst; composition of the plating solution:
AgNO3 0.01mol/L
NiSO4 0.01mol/L
H3BO3 20g/L
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
The electroplating time is 60 minutes.
Example 3:
(1) pretreatment of the gradient titanium foam plate: ultrasonically removing oil in acetone for 15 minutes, cleaning with methanol or ethanol, treating with 1mol/L HF for 10 minutes, ultrasonically cleaning with secondary distilled water for 3 times, and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; composition of the electrolyte: 1% by weight of HF, 1mol/L of H2SO4The electrolytic potential is 20V, and the electrolytic time is 120 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) preparation of the air filter: taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing with deionized water after the electroplating is finished, and drying to obtain the product with the NiAg/TiO loaded on the surface2The sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst comprises the following components:
AgNO3 0.01mol/L
NiSO4 0.01mol/L
H3BO3 20g/L
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
The electroplating time is 90 minutes.
Example 4:
(1) pretreatment of the gradient titanium foam plate: ultrasonically removing oil in acetone for 15 minutes, cleaning with methanol or ethanol, treating with 1mol/L HF for 10 minutes, ultrasonically cleaning with secondary distilled water for 3 times, and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; composition of the electrolyte: 1% by weight of HF, 1mol/L of H2SO4The electrolytic potential is 20V, and the electrolytic time is 120 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) preparation of the air filter: taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing with deionized water after the electroplating is finished, and drying to obtain the product with the NiAg/TiO loaded on the surface2The sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst comprises the following components:
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
Electroplating time is 30 minutes.
Example 5:
(1) pretreatment of the gradient titanium foam plate: ultrasonically removing oil in acetone for 15 minutes, cleaning with methanol or ethanol, treating with 1mol/L HF for 10 minutes, ultrasonically cleaning with secondary distilled water for 3 times, and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; electrolyte composition of 1% HF, 1mol/L H2SO4The electrolytic potential is 20V, and the electrolytic time is 60 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) preparation of the filter: taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing with deionized water after the electroplating is finished, and drying to obtain the product with the NiAg/TiO loaded on the surface2The sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst comprises the following components:
AgNO3 0.01mol/L
NiSO4 0.01mol/L
H3BO3 20g/L
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
The electroplating time is 90 minutes.
Example 6:
(1) pretreatment of the gradient titanium foam plate: ultrasonically removing oil in acetone for 15 minutes, cleaning with methanol or ethanol, treating with 1mol/L HF for 10 minutes, ultrasonically cleaning with secondary distilled water for 3 times, and drying;
(2) TiO on inner and outer surfaces of pores of gradient titanium foam plate2And (3) forming the nanotubes: carrying out anodic oxidation on the treated gradient titanium foam plate in electrolyte; composition of the electrolyte: 1% of HF, 1mol/L of H2SO4The electrolytic potential is 20V, and the electrolytic time is 30 minutes; after the electrolysis is finished, washing by deionized water, drying, and roasting for 3 hours at 500 ℃ in a muffle furnace to form TiO on the outer surface of the gradient foam titanium plate and the inner wall of the through hole2A nanotube;
(3) preparation of the filter: taking the gradient foam titanium plate obtained by the treatment in the step (2) as a cathode, electroplating in electroplating solution at room temperature, washing with deionized water after the electroplating is finished, and drying to obtain the product with the NiAg/TiO loaded on the surface2The sterilizing and disinfecting self-purification filter (7) of the nanotube catalyst comprises the following components:
AgNO3 0.01mol/L
NiSO4 0.01mol/L
H3BO3 20g/L
the pH of the plating solution was 4.4
Current density of plating: 5mA/cm2
The electroplating time is 60 minutes.
Test example:
the removal of the organic gas includes adsorption and degradation of the filter, the organic gas being first adsorbed by the filter and then degraded by the catalyst in the filter. The removal rate and degradation rate of the organic gas were determined by using 100mg/L of a gas formed by gasifying formaldehyde as a substrate. The removal rate is calculated by comparing the concentration of formaldehyde gas measured by a gas chromatograph before and after passing through a filter. The degradation rate was calculated by comparing the concentration of the adsorbed portion after 6 hours of passing formaldehyde gas through the filter with the concentration removed by the filter, as measured by a gas chromatograph. The sterilization rate was measured by the colony counting method according to the method described in 2017 sterilization specification 2.1 (sterilization effect test specification for sterilized products), with reference to GB4789.2-2016, "determination of total number of colonies for food hygiene and microbiology test in national standards of the people's republic of china", and the results of the measurements are shown in table 1.
Table 1 results of measuring filtering and sterilizing effects of air filters according to embodiments of the present invention
| Examples | Organic gas removal rate/%) | Organic gas degradation rate/%) | Sterilizing rate/%) |
| Example 1 | 98 | 92 | 99.99 |
| Example 2 | 95 | 87 | 99.99 |
| Example 3 | 95 | 86 | 99.99 |
| Example 4 | 96 | 90 | 99.99 |
| Example 5 | 93 | 75 | 99.99 |
| Example 6 | 93 | 74 | 99.99 |
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a noise elimination disinfection self purification air purifier which characterized in that includes: the air conditioner comprises a shell (1), wherein a fresh air inlet (2) and an exhaust air outlet (5) are arranged at the first end of the shell (1), and an air supply outlet (3) and an air return inlet (4) which are coaxially arranged with the exhaust air outlet (5) and the fresh air inlet (2) are arranged at the second end of the shell (1); a first coarse filter (6), a sterilization and disinfection self-purification filter (7) and an exhaust side fan system (9) are sequentially arranged in the shell (1) from near to far and close to the fresh air inlet (2); the position in the shell (1) close to the return air inlet (4) is from near to farA second coarse filter (16) and a fresh air side fan system (8) are arranged, the sterilization and disinfection self-purification filter (7) takes a gradient titanium foam plate (13) as a substrate to form TiO on the outer surface and the inner wall of the through hole2The nano-tube (14) is formed by electroplating and depositing a nano NiAg alloy (15).
2. The air purifier of claim 1, wherein the air purifier comprises: the first coarse filter (6) and the second coarse filter (16) are formed by fixedly wrapping activated carbon particles (12) between a coarse filtration non-woven fabric layer (10) and a support non-woven fabric layer (11).
3. The air purifier of claim 1, wherein the air purifier comprises: the through holes in the gradient titanium foam plate (13) are of a gradient structure with the density continuously changing and the hole density increasing along the air flowing direction.
4. The air purifier of claim 1, wherein the air purifier comprises: the gradient titanium foam plate (13) is rectangular and has the thickness of 2-5 mm.
5. The air purifier of claim 1, wherein the air purifier comprises: the first coarse filter (6), the second coarse filter (16) and the sterilizing and disinfecting self-purifying filter (7) can be independently installed and detached.
6. A self-cleaning air purifier with functions of noise elimination, sterilization and disinfection, as claimed in claim 1, characterized in that the method for preparing the self-cleaning filter (7) with functions of sterilization, disinfection and self-purification comprises the following steps:
(1) cleaning the gradient titanium foam plate (13); the cleaning treatment specifically comprises the following steps: ultrasonic degreasing in acetone for 15 minutes, absolute ethyl alcohol cleaning, 1mol/L HF treatment for 10 minutes, secondary distilled water ultrasonic cleaning for 3 times and drying;
(2) the gradient titanium foam board (13) processed in the step (1)Carrying out anodic oxidation in an electrolyte; then taking out, washing with deionized water, drying, roasting in a muffle furnace at the temperature of 500-600 ℃ for 3 hours to form TiO on the outer surface of the gradient foam titanium plate (13) and the inner wall of the through hole2A nanotube (14);
wherein the electrolyte comprises 0.5-1% of HF and 1mol/L of H2SO4(ii) a The anodic oxidation condition is 20V of potential and 30-120min of time;
(3) taking the gradient titanium foam plate (13) treated in the step (2) as a cathode, electroplating for 30-90 min in electroplating solution at room temperature, washing with deionized water after electroplating, drying to obtain a sterilizing and disinfecting self-purification filter (7),
wherein the electroplating solution comprises 0.01mol/L of silver nitrate, 0.01mol/L of nickel sulfate and 20g/L of boric acid; the pH of the electroplating solution is 4.4, and the current density of the electroplating is 5mA/cm2。
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| CN115814746A (en) * | 2021-09-16 | 2023-03-21 | 中国科学院大连化学物理研究所 | Integral adsorption inactivation material and preparation method and application thereof |
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