CN105536825A - Catalyst for air sterilization, disinfection and purification and preparation method thereof - Google Patents
Catalyst for air sterilization, disinfection and purification and preparation method thereof Download PDFInfo
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- CN105536825A CN105536825A CN201610010790.0A CN201610010790A CN105536825A CN 105536825 A CN105536825 A CN 105536825A CN 201610010790 A CN201610010790 A CN 201610010790A CN 105536825 A CN105536825 A CN 105536825A
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- catalyst
- chlorite
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- 239000003054 catalyst Substances 0.000 title claims abstract description 21
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 10
- 238000000746 purification Methods 0.000 title claims abstract description 9
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 17
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 8
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 8
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 8
- 231100000719 pollutant Toxicity 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 7
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims abstract description 7
- 229960002218 sodium chlorite Drugs 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 241000894006 Bacteria Species 0.000 claims abstract description 4
- 241000700605 Viruses Species 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000004113 Sepiolite Substances 0.000 claims abstract description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 3
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 3
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 3
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 3
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 3
- 239000010457 zeolite Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 150000003254 radicals Chemical class 0.000 claims description 9
- 239000007792 gaseous phase Substances 0.000 claims description 8
- 229910001919 chlorite Inorganic materials 0.000 claims description 7
- 229910052619 chlorite group Inorganic materials 0.000 claims description 7
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 206010013786 Dry skin Diseases 0.000 claims description 3
- 241000264877 Hippospongia communis Species 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- -1 alkali metal salt Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims description 2
- KAGBQTDQNWOCND-UHFFFAOYSA-M lithium;chlorite Chemical compound [Li+].[O-]Cl=O KAGBQTDQNWOCND-UHFFFAOYSA-M 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 244000005700 microbiome Species 0.000 claims description 2
- VISKNDGJUCDNMS-UHFFFAOYSA-M potassium;chlorite Chemical compound [K+].[O-]Cl=O VISKNDGJUCDNMS-UHFFFAOYSA-M 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- MSLRPWGRFCKNIZ-UHFFFAOYSA-J tetrasodium;hydrogen peroxide;dicarbonate Chemical compound [Na+].[Na+].[Na+].[Na+].OO.OO.OO.[O-]C([O-])=O.[O-]C([O-])=O MSLRPWGRFCKNIZ-UHFFFAOYSA-J 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001447 alkali salts Chemical class 0.000 claims 1
- 238000013475 authorization Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000001580 bacterial effect Effects 0.000 abstract 2
- 230000000813 microbial effect Effects 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002803 maceration Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
- B01J27/10—Chlorides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
- A62D3/176—Ultraviolet radiations, i.e. radiation having a wavelength of about 3nm to 400nm
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/08—Silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Analytical Chemistry (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides a catalyst for indoor air sterilization, disinfection and purification. A carrier of the catalyst is formed by adopting silicon dioxide, zeolite, kieselguhr, sepiolite, montmorillonite, aluminum oxide and other inorganic porous materials or cordierite and mullite honeycomb ceramic as a carrier, immersing the carrier in a sodium chlorite stabilizing solution or a chlorine dioxide stabilizing solution and drying the mixture. The material is irradiated by an ultraviolet lamp (an A wave band, a B wave band and a C wave band are all effective), gas phase free radicals .OH, .CIO2, .HO2, .O and other active particles are generated, a chain reaction is induced, viruses, bacteria, mould and other microbial pollutants are rapidly killed, and formaldehyde and other chemical pollutants are removed. Compared with the prior art, purification efficiency is high, no secondary pollution is generated, the service life is long, simplicity and reliability are achieved, and the catalyst can coexist with the man and machine. An air disinfection purifier made of the catalyst as a filtering material is detected by a third party mechanism accepted by CNAS and CMA, in a test cabin of 30M<3>, the bacterial eliminating rate in 15 min is 99.68%, the bacterial eliminating rate in 30 min is 99.99%, and the formaldehyde removal rate reaches 99.1% in 1 h.
Description
Technical field
The invention belongs to Green Chemistry high-level oxidation technology and environmental project application, relate at gaseous condition, scale prepares gaseous phase free radical OH, ClO
2, HO
2, O isoreactivity particle, and bring out chain reaction.
Background technology
Microbes pollutant in air pollution and contaminants of chemical origin, adopt the methods such as absorption, photocatalysis, anion, plasma, ozone to purify usually.In these methods, the most effective with high-concentrated ozone purification method, the standard electrode potential of ozone 2.07 volts, chemical reaction rate constant 10
1~ 10
2l/ (mols), ozone kills mould (microbes pollute in the more difficult one killed) time in the gas phase needs 100min, ozone purification still has weak point, and ozone is harmful, can not man-computer symbiosis at room air sterilization sterilizing and purifying.But OH has stronger oxidability (standard electrode potential 2.80 volts), the oxidability of it and simple substance fluoride (2.87 volts) is almost suitable, is a kind of Strong oxdiative material.The reaction of OH simultaneously belongs to radical reaction, has very high chemical reaction rate 10
7~ 10
9l/ (mols), 7 orders of magnitude higher than ozone.Its chemical time is less than 1s, biochemical reaction time 1 ~ 10s.But due to OH life-span extremely short (about 10ns), so OH preparation and pollution control need be carried out at one time, namely produce OH while administer, that is must realize in-situ regeneration high concentration gaseous phase free radical, or scale prepares gaseous phase free radical OH, ClO
2, HO
2, O isoreactivity particle.
Silicon dioxide meter has extremely strong affinity in the face of water, and hydrone can irreversibly or reversibly be adsorbed on the surface, thus silica surface normally by water when one deck OH (hydroxyl) and suction topped.The former is bonded to the hydroxyl on surperficial Si atom, namely chemical absorbed water; The latter is the water of the water being adsorbed on surface molecular, namely physical absorption.On the true basis of great many of experiments, through our long-term observation and deep Theory Thinking, the dream that this characteristic of silica helps us to achieve scale to prepare the gaseous phase free radicals such as hydroxyl radical free radical.When silicon dioxide carried Stable chlorine dioxide solution, and after less than 85 DEG C dryings, at unglazed photograph, without under heating state, ClO
2silica surface mechanical water (in a small amount) is made to have ionization to be hydrolyzed H
2o → H
++ OH
-, thus have ClO
2+ H
2o → HClO
2+ HClO
3slow hydrolysis outside, also exist chemical absorbed water nonionic hydrolysis:
Thus have
Overall reaction is
In addition, also have
With
Above-mentioned non-ionic hydrolysis (free radical pattern) is not remarkable in the ordinary course of things, but can greatly accelerate when having substrate to react with it or to have physics or chemical catalysis, thus has a large amount of
generate.
Because also there is the surface hydroxyl produced because of adsorbed water on active alundum (Al2O3) surface, so also there is the characteristic of above-mentioned silica.
High-level oxidation technology is to produce OH for mark, but at present gaseous state produces the method for OH, as patent 201010567135.8 and 201310700249.9 all need huge optional equipment and also cost high, be difficult to large-scale industrial application.
Summary of the invention
The object of the invention is to solve under high-level oxidation technology is applied in gaseous condition, the deficiency of pollutant control aspect prior art, providing a kind of scale can prepare gaseous phase free radical OH, ClO
2, HO
2, O air pollution treatment new method, improve removal efficiency, non-secondary pollution, long service life, simple and reliable, can man-computer symbiosis achieve application in practice.
Feature of the present invention: 1. catalyst carrier can be silica, zeolite, sepiolite, diatomite, montmorillonite, alundum (Al2O3) inorganic porous material (granularity >=100 order), preferred 2-3mm, 3-5mm, can be wherein any one, also can be multiple mixture or compound, immersion stability ClO 2 solution or stability chlorite solution, less than 85 DEG C dry, forms to moisture content≤8%.
Feature of the present invention: 2. catalyst carrier also can pass through regular carrier, cordierite honeycomb ceramic or mullite ceramic honey comb (hole density 50 Mu ?900 orders), preferably 400 orders, specification 150 × 150mm, thickness can set arbitrarily as required, preferred 25mm, 50mm, 100mm, 150mm.Immersion stability ClO 2 solution or stabilized sodium chlorite solution, less than 85 DEG C dry, forms to moisture content≤8%.
This material has two kinds of usings method: 1. through ultraviolet lamps irradiates, produces OH, ClO
2, HO
2, O isoreactivity particle, bring out chain reaction, rapid kill virus, bacterium, mould and degraded chemical pollutant, finally become carbon dioxide, water and micro-rock salt.2. according to Environment control and the difference of administering object, can without ultraviolet lamps irradiates, directly as catalytic oxidation material, can to degrade equally the microorganism such as chemical pollutant and kill virus, bacterium, mould, just purification efficiency is slightly poorer than first method, reach same clean-up effect, during used catalyst amount ratio ultraviolet lamps irradiates, will about 30% be increased.
Dipping solution of the present invention has two schemes
First scheme: preparation stable ClO 2 solution, obtain the chlorine dioxide of purity>=98% with high purity chlorine dioxide generator, (chemical general formula is for Na with sodium carbonate peroxyhydrate
2cO
3mH
2o
2nH
2o) as stabilizing agent, be made into a certain proportion of absorbing liquid, be finally prepared into the solution that chlorine dioxide content is 2%-5%.
Alternative plan: preparation stabilized sodium chlorite solution, in this solution, each constituent content is as follows: chlorite 0.1-10, stabilizing agent 0.1-5, buffer 0.05-15, absorbent 0.1-75.
Chlorite refers to containing chlorition ClO
2 -salt, such as: sodium chlorite, potassium chlorite, lithium chlorite.
Stabilizing agent is also strong oxidizer, such as: potassium permanganate, H
2o
2, perchlorate, nitrate etc.
Buffer refers to the material that solution Ph value can be made to maintain basic homeostasis within the specific limits, is generally salt, can only use the salt of strong base weak acid here, as sodium carbonate or borate, citrate etc.
Absorbent refers to chemical absorbent, and has chemical reaction between solute, and the solubility of solute is not only relevant with vapor liquid equilibrium rule, and relevant with chemical balance rule.Chemical absorbent is the solution of certain active component mostly, such as the aqueous solution etc. of potash, sodium carbonate, NaOH, potassium hydroxide.
In above-mentioned two schemes, one is as maceration extract, floods the inorganic porous carrier of above-mentioned any one, dry until moisture content≤8% through less than 85 DEG C temperature, obtains the catalysis material required for us.
In ultraviolet lamp, A, B, C tri-wave bands (wavelength 400-180nm) irradiate and this catalysis material scale all can be excited to produce gaseous phase free radical OH, ClO
2, HO
2, O isoreactivity particle, as long as exposure intensity is identical, LED or mercury uviol lamp effect substantially identical.Central air supply filtration system, using peak nest pottery as catalyst (windage the is little) C-band through there being ozone to produce (185nm) ultraviolet lamps irradiates of carrier, clean-up effect is especially good.
When air humidity is large (as being greater than 80%), existing photocatalysis oxidation technique or normal temperature heterogeneous catalytic oxidation technology, to Pollutant-degrading gene, all can significantly decline, and catalyst of the present invention, but can not be influenced because of high humidity, in life, this meteorological condition can often occur; When gas is very dry, water volume concentration lower than 4% time, to this catalyst chemical contact scar thing purification clearance have considerable influence, but this extreme drying regime but there will not be in atmosphere.
Accompanying drawing explanation
Accompanying drawing 1 beaded catalyst installation of the present invention experimental prototype KF-501A.
The degerming rate of the above-mentioned model machine of accompanying drawing 2 detects data.
The above-mentioned model machine of accompanying drawing 3 is except formaldehyde examination data.
The above-mentioned model machine of accompanying drawing 4 removes formaldehyde curve and famous brand name clarifier and high-concentrated ozone and contrasts.
The above-mentioned model machine of accompanying drawing 5 removes formaldehyde curve except formaldehyde curve minimum power and Switzerland's famous brand name I peak power contrasts.
Detailed description of the invention
Example, first stabilized sodium chlorite stabilizing solution is produced, measure 5000ml pure water, take the sodium chlorite of 400g content 80%, after dissolving in water, take sodium chloride 100g and continue to stir in water to dissolve, then 20g tetra-Heshui Boratex is added, finally add 20ml content 30% hydrogen peroxide, filter after stirring, finally with between sodium carbonate adjustment pH value 8.0-9.5.Then adding 3000g granularity is that the silica of 3 ~ 5mm all floods in a liquid, does not stop to stir, and after 1 ~ 2 hour, the remaining to the greatest extent liquid of drop, fan dries up and is placed on 65 DEG C of vacuum furnace dryings, for subsequent use to moisture content≤8% cooling of can coming out of the stove.Make two filter screens with this material to be assemblied in a double-faced ventilated home disinfecting clarifier KF-501A, this clarifier does not fill UV lamp, nets to coordinate to purify room air with H13HEPA.Accompanying drawing 1
30 cubic metres of experimental cabins, third party detects, degerming rate data.Accompanying drawing 2
30 cubic metres of experimental cabin third parties detect except formaldehyde data.Accompanying drawing 3
10 cubic metres of experimental cabin KF-501A remove formaldehyde curve map and high-concentrated ozone machine and famous foreign brand clarifier except formaldehyde curve map.Accompanying drawing 4
10 cubic metres of experimental cabin KF-501A minimum powers are except formaldehyde curve and Switzerland famous brand name I peak power are except formaldehyde curve map.Accompanying drawing 5.
Claims (8)
1. sterilization and purification catalyst and a using method in air, its feature: this catalyst is at ambient temperature through ultraviolet lamps irradiates, and scale produces gaseous phase free radical OH, ClO
2, HO
2, O isoreactivity particle, adsorb and be oxidized the microorganisms such as the virus killed in air, bacterium and mould, the chemical pollutants such as the formaldehyde in air are removed in simultaneous oxidation.
2. catalyst according to claims 1, is characterized in that, inorganic porous property catalyst carrier, and immersion stability ClO 2 solution or stability chlorite solution, form through less than 85 DEG C temperature dryings.
3. catalyst according to claim 1, it is characterized in that, porous inorganic carrier according to claim 2, it can be the regular carrier of hole density 30 order to 900 object, as cordierite, mullite ceramic honey comb, be designed to a certain size being convenient to produce, then different connection in series-parallel combinations is done as required, meet the instructions for use of different purification filtering air quantity and windage, preferred specification, as hole density 400 order, size 150 × 150mm (long × wide), be cut into different-thickness as required, preferred thickness 25mm, 50mm, 100mm, 150mm.
4. the catalyst according to claims 1, it is characterized in that, porous inorganic carrier according to claim 2, also can be granularity >=100 object alundum (Al2O3), silica, zeolite, sepiolite, montmorillonite, diatomite wherein one or more mixtures or compound, these inorganic porous property materials should have 10 meters squared per gram or larger specific area, the preferably specific area of more than 100 cubic metres/gram, granularity preferred 2-3mm, 3-5mm.
5. the stable ClO 2 solution according to claims 2, is characterized in that, obtains the chlorine dioxide of purity>=98% with high purity chlorine dioxide generator, and with sodium carbonate peroxyhydrate, (chemical general formula is for Na
2cO
3mH
2o
2nH
2o) as stabilizing agent, be made into a certain proportion of absorbing liquid, be finally prepared into the solution that chlorine dioxide content is 2%-5%.
6. the stability chlorite solution according to claims 2, it is characterized in that, in this solution, each constituent content is as follows: chlorite 0.1-10, stabilizing agent 0.1-5, buffer 0.05-15, absorbent 0.1-75, chlorite can be chlorous alkali metal salt or chlorous alkali salt, as sodium chlorite, potassium chlorite, lithium chlorite.
7. the sterilizing and purifying method according to claims 1, it is characterized in that, this catalyst can be processed into any shape in advance according to different instructions for uses, be positioned on microenvironment air filtration system or portable air sterilizing and purifying device, as long as through the ultraviolet of >=30 microwatts/square centimeter exposure intensity, just can efficiently remove microbes pollutant and contaminants of chemical origin.
8. the sterilizing and purifying method according to claims 1; it is characterized in that; ultraviolet described in letter of authorization 7 can be provided by mercury ultraviolet lamp or LED ultraviolet lamp; A, B, C in ultraviolet tri-wave band catalyst scale all can be excited to produce gaseous phase free radical active particle; central air supply system; the ozoniferous C-band ultraviolet of available energy, and mobile sterilizing and purifying device, the most handy not ozoniferous A or B band ultraviolet; As by LED, for reducing costs available A band ultraviolet.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010790.0A CN105536825B (en) | 2016-01-09 | 2016-01-09 | Air sterilizing catalyst for clarifying and preparation method thereof |
| US15/554,020 US10183187B2 (en) | 2016-01-09 | 2016-03-08 | Catalyst for disinfection, sterilization and purification of air, and preparation method thereof |
| PCT/CN2016/075854 WO2017117861A1 (en) | 2016-01-09 | 2016-03-08 | Catalyzer for sterilizing, disinfecting and purifying air, and preparation method thereof |
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|---|---|---|---|
| CN201610010790.0A CN105536825B (en) | 2016-01-09 | 2016-01-09 | Air sterilizing catalyst for clarifying and preparation method thereof |
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| CN105536825B CN105536825B (en) | 2018-11-23 |
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