CN103480267B - Material for air purification and its preparation method and application - Google Patents
Material for air purification and its preparation method and application Download PDFInfo
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- CN103480267B CN103480267B CN201310139928.3A CN201310139928A CN103480267B CN 103480267 B CN103480267 B CN 103480267B CN 201310139928 A CN201310139928 A CN 201310139928A CN 103480267 B CN103480267 B CN 103480267B
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000004887 air purification Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 239000012286 potassium permanganate Substances 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 5
- JYLNVJYYQQXNEK-UHFFFAOYSA-N 3-amino-2-(4-chlorophenyl)-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(CN)C1=CC=C(Cl)C=C1 JYLNVJYYQQXNEK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 abstract description 66
- 230000002000 scavenging effect Effects 0.000 abstract description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000835 fiber Substances 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000004745 nonwoven fabric Substances 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 239000002657 fibrous material Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 56
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 34
- 239000011572 manganese Substances 0.000 description 32
- 239000000243 solution Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 13
- 229930040373 Paraformaldehyde Natural products 0.000 description 8
- 229920002866 paraformaldehyde Polymers 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000003643 water by type Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910001437 manganese ion Inorganic materials 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 3
- 229940039790 sodium oxalate Drugs 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 238000001237 Raman spectrum Methods 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of material for air purification and its preparation method and application, belong to chemical catalysis decomposition technique field.Comprise base material and Mn oxide, Mn oxide load is on base material, and described Mn oxide is the birnessite type Mn oxide prepared by permanganate and reducing agent in-situ reducing; Described base material is filter cotton, non-woven fabrics, cotton or gauze, has the fiber of filtration of particulate matters function.Preparation method comprises the following steps: be dissolved in water by quaternary ammonium salt and permanganate, add base material; Add reducing agent in upper step gained solution, fully stir evenly; The solution of upper step gained is carried out heated at constant temperature; Take out base material and carry out drying, obtain finished product.The invention solves Mn oxide load easily on the fibrous material substrate such as filter cotton, the formaldehyde, the ozone that the scavenging material of the low windage of acquisition are at room temperature continued, degrades in air rapidly, and the preparation method of this scavenging material is simple, cost is low, do not introduce other pollutants.
Description
Technical field
The invention belongs to chemical catalysis decomposition technique field, particularly pollutant decomposition technique field in surrounding air.
Background technology
Containing a large amount of particle in air, as dust, dust, flue dust, mine dust, sand dust, powder etc., filter-type fiber base material is removed in the particle in air in purification and is played indispensable effect, but in the interior space of people's work, life, also there is inorganic pollution thing and the volatile organic contaminant of a lot of gaseous state, as nitrogen oxide, ozone, formaldehyde, toluene, dimethylbenzene etc.Wherein formaldehyde has stimulation toxicity, is a kind of carcinogen, can affect health via suction and skin contact.It is a kind of common indoor air pollutants, mainly discharges in construction material indoor and ornament, and has slow releasing, the lasting feature polluted.2002, the Multimetal oxide that had researcher to investigate, as the removal effect (AtmosphericEnvironment2002 of the PARA FORMALDEHYDE PRILLS(91,95)s such as silver oxide, cupric oxide, cobalt oxide, zinc oxide, titanium dioxide, di-iron trioxide and manganese dioxide, 36,5543 – 5547), under finding normal temperature, manganese dioxide PARA FORMALDEHYDE PRILLS(91,95) has the highest removal active.There is report that Mn oxide is carried on (AppliedCatalysisB:Environmental2004,51,83 – 91 on aluminium oxide, titanium dioxide and granular activated carbon in recent years; CN102294237; TopCatal2008,47,109 – 115; ACTA Scientiae Circumstantiae 2008,28,337-341), but these granular pattern base material windages for Supported Manganese oxide are large, when being applied to the active ventilation cleaning mode of air gas, be difficult to actual use, moreover, the removal effect of PARA FORMALDEHYDE PRILLS(91,95) is poor, is difficult to practical requirement under room temperature.2011, the Mn oxide organic gel of preparation to be sticked on glass fibre at room temperature PARA FORMALDEHYDE PRILLS(91,95) by American Studies person good removal effect (AppliedCatalysisB:Environmental2011,107,34 – 41), but this kind of manufacture of materials longer, complex process consuming time and introduce organic gel and easily produce new pollution.Also researcher is had Mn oxide to be carried on NanoLett.2010 on porous textile, 10,708-714; NanoLett.2011,11,2905 – 2911), prepared Chinese ink or Graphene are first applied to material surface by its process need, and step is more complicated, and Mn oxide is not strong for load solid, easily comes off.Therefore invent the scavenging material being convenient to practical application that a kind of preparation technology is simple, cost is low, windage is low, the formaldehyde pollution removed in room air for economical and effective has important practical value.
Summary of the invention
The present invention is directed to deficiency of the prior art provides a kind of fiber with filter cotton, non-woven fabrics, cotton, gauze etc. with filtration of particulate matters function for base material material for air purification and preparation thereof and renovation process, the problem solved be how by permanganate load easily on the air filting material of low windage, the formaldehyde, the ozone that the scavenging material of the Supported Manganese oxide of acquisition are at room temperature continued, degrades in air rapidly, and the preparation method of this scavenging material is simple, cost is low, do not introduce other pollutants.
A kind of material for air purification of the present invention, comprise base material and Mn oxide, Mn oxide load is on base material, it is characterized in that, described base material is filter cotton, non-woven fabrics, cotton, gauze and the fiber with filtration of particulate matters function, the birnessite type Mn oxide that described Mn oxide is prepared by permanganate and reducing agent local reduction way.
The preparation method of a kind of material for air purification of the present invention, it is characterized in that, the method comprises the following steps:
(1) quaternary ammonium salt and permanganate are dissolved in water, add base material;
(2) add reducing agent in step (1) gained solution, fully stir evenly;
(3) solution of step (2) gained is carried out heated at constant temperature;
(4) take out base material and carry out drying, obtain finished product.
Described quaternary ammonium salt is the mixture of a kind of or arbitrary proportion in softex kw and hexadecyltrimethylammonium chloride.The mass ratio of described permanganate and base material is 1:0.2 ~ 1:2.Described permanganate is water miscible permanganate.Described water miscible permanganate is a kind of in sodium permanganate, potassium permanganate and ammonium permanganate or their any combination.Described reducing agent is a kind of in methyl alcohol, ethanol and ethylene glycol or their any combination.Described heating-up temperature is room temperature ~ 50 DEG C, and the time is 0.5 ~ 12 hour; Described baking temperature is room temperature ~ 200 DEG C.The concentration of described quaternary ammonium salt is 0.1 ~ 10g/L, and permanganate is 1:10 ~ 1:300 with the amount of substance ratio of reducing agent.
The material for air purification prepared according to above-mentioned material for air purification or above-mentioned preparation method as arbitrary need in the purifier of purifying formaldehyde and/or ozone or directly by described scavenging material be positioned over need purifying formaldehyde and/or ozone space in the application of scavenging material.
The present invention's base material used not only can particle in filtered air and dust, at room temperature decomposes the formaldehyde in air and ozone after the Mn oxide of local reduction way load.
Advantage of the present invention is mainly reflected in:
(1) adopt the Mn oxide of local reduction way one-step synthesis support type, preparation technology is simple, cost is low, is easy to large-scale production.
(2) active component load on filter cotton is firm, and load capacity is with the concentration adjustment by regulating presoma permanganate.
(3) the scavenging material windage prepared is low, and has good pliability, is convenient to be prepared into various shape, is suitable for the purification of air process of various ways.
(4) scavenging material invented can formaldehyde at room temperature in fast decoupled air, and purification cost is low, and can fast and conveniently regenerate.
Accompanying drawing explanation
Fig. 1 is the photo after filter cotton Supported Manganese oxide of the present invention.
Fig. 2 is the electron micrograph before and after filter cotton Supported Manganese oxide.
Fig. 2 a is filter cotton low power electromicroscopic photograph.
Fig. 2 b, Fig. 2 c are the low power electromicroscopic photograph after filter cotton Supported Manganese oxide of the present invention;
Fig. 2 d is filter cotton high power electromicroscopic photograph.
Fig. 2 e, Fig. 2 f are the high power electromicroscopic photograph after filter cotton Supported Manganese oxide of the present invention.
Fig. 3 is the Raman spectrum of load of the present invention Mn oxide on filter cotton.
Fig. 4 is that filter cotton Supported Manganese oxide of the present invention is to the removal effect figure of formaldehyde in air.
Fig. 5 is that filter cotton Supported Manganese oxide of the present invention is to the regeneration effect figure of formaldehyde in air.
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Material for air purification of the present invention, comprises base material and Mn oxide, and Mn oxide load is on base material, and base material is filter cotton, non-woven fabrics, cotton, gauze and the fiber with filtration of particulate matters function, and wherein Mn oxide can be birnessite type Mn oxide.
Below in conjunction with drawings and Examples, the present invention is described in more detail.
Embodiment 1:
Take 0.04 gram of softex kw to be dissolved in 20 milliliters of ultra-pure waters, ultrasonic dissolution is to forming uniform solution.The softex kw solution that after cutting 0.25 gram filter cotton puts into configuration is soaked.Take 0.25 gram of potassium permanganate, potassium permanganate is joined and is placed with in the softex kw solution of filter cotton.Ultrasonicly to dissolve completely to potassium permanganate, add 15 ml methanol subsequently, the solution of gained to be positioned at water-bath 45 DEG C reaction 6 hours.Take out filter cotton to dry at 105 DEG C, namely obtain the filter cotton of Mn oxide load.At this moment Mn oxide is coated on substrate surface.
Fig. 1 is the photo after filter cotton Supported Manganese oxide of the present invention, and before load, the color of filter cotton is white, and after load, (Fig. 1) is in dark, illustrates that a large amount of Mn oxides has loaded on filter cotton.
Fig. 2 is the electromicroscopic photograph before and after filter cotton Supported Manganese oxide, and Fig. 2 a and d is the electromicroscopic photograph of the filter cotton different amplification of non-load, knows filter cotton filament diameter 20 μm by figure, and before load, its surface is comparatively smooth.Fig. 2 b is the electromicroscopic photograph after load, and the surface smooth by the visible filter cotton of Fig. 2 b is closely covered by the Mn oxide reacting generation.Fig. 2 e is the high power electromicroscopic photograph of sample after load, and the Mn oxide on visible filter cotton surface is irregular sheet, condensation mutually, caking.
Soak the filter cotton sample after Supported Manganese oxide with the sodium oxalate mixed solution of 5% sulfuric acid and 0.1mol/L, with the manganese ion content in inductance coupled plasma optical emission spectrophotometer solution, after calculating load thus, the Fe content of filter cotton is 15mg/g.
The sample got off is ground with on the filter cotton of micro confocal laser Raman spectrometer analysis load, with 532nm laser as excitation source, gained spectrum as shown in Figure 3, within the scope of 200 ~ 1000cm-1 occur four peaks, its peak position is respectively: 502(w), 569(s), 648(s), 798(w) cm-1.Infer that the Mn oxide of load on filter cotton surface is birnessite type Mn oxide thus.
Embodiment 2
Take 0.04 gram of softex kw to be dissolved in 20 milliliters of ultra-pure waters, ultrasonic dissolution is to forming uniform solution.The softex kw solution that after cutting 0.25 gram filter cotton puts into configuration is soaked.Take 0.25 gram of potassium permanganate, potassium permanganate is joined and is placed with in the softex kw solution of filter cotton.Ultrasonicly to dissolve completely to potassium permanganate, add 5 ml methanol subsequently, the solution of gained to be positioned under room temperature reaction 10 hours.Taking-up filter cotton is dried, and namely obtains the filter cotton of Mn oxide load.
Fig. 2 is the electromicroscopic photograph before and after filter cotton Supported Manganese oxide, and the surface smooth by the visible filter cotton of Fig. 2 c is closely covered by the Mn oxide reacting generation.Fig. 2 f is the high power electromicroscopic photograph of sample after load, the Mn oxide on visible filter cotton surface still in irregular sheet, but in conjunction with consolidation Mn oxide below its sheet.
Soak the filter cotton sample after Supported Manganese oxide with the sodium oxalate mixed solution of 5% sulfuric acid and 0.1mol/L, with the manganese ion content in inductance coupled plasma optical emission spectrophotometer solution, after calculating load thus, the Fe content of filter cotton is 20mg/g.
Fig. 3 is the Raman spectrum of Mn oxide on the filter cotton prepared of this embodiment.The sample got off is ground with on the filter cotton of micro confocal laser Raman spectrometer analysis load, with 532nm laser as excitation source, gained spectrum as shown in Figure 3, within the scope of 200 ~ 1000cm-1 occur four peaks, its peak position is respectively: 502(w), 569(s), 648(s), 798(w) cm-1.Infer that the Mn oxide of load on filter cotton surface is birnessite type Mn oxide thus.
Embodiment 3
Take 0.04 gram of softex kw to be dissolved in 20 milliliters of ultra-pure waters, ultrasonic dissolution is to forming uniform solution.The softex kw solution that after cutting 0.25 gram filter cotton puts into configuration is soaked.Take 0.15 gram of potassium permanganate, potassium permanganate is joined and is placed with in the softex kw solution of filter cotton.Ultrasonicly to dissolve completely to potassium permanganate, add 15 ml methanol subsequently, the solution of gained to be positioned under room temperature reaction 10 hours.Taking-up filter cotton is dried, and namely obtains the filter cotton of Mn oxide load.
Soak the filter cotton sample after Supported Manganese oxide with the sodium oxalate mixed solution of 5% sulfuric acid and 0.1mol/L, with the manganese ion content in inductance coupled plasma optical emission spectrophotometer solution, after calculating load thus, the Fe content of filter cotton is 14mg/g.
Embodiment 4
Take 0.08 gram of softex kw to be dissolved in 20 milliliters of ultra-pure waters, ultrasonic dissolution is to forming uniform solution.The softex kw solution that after cutting 0.25 gram filter cotton puts into configuration is soaked.Take 0.25 gram of sodium permanganate, potassium permanganate is joined and is placed with in the softex kw solution of filter cotton.Ultrasonicly to dissolve completely to potassium permanganate, add 5 milliliters of ethanol subsequently, the solution of gained to be positioned under room temperature reaction 10 hours.Taking-up filter cotton is dried, and namely obtains the filter cotton of Mn oxide load.
Embodiment 5
Take 0.04 gram of hexadecyltrimethylammonium chloride to be dissolved in 20 milliliters of ultra-pure waters, ultrasonic dissolution is to forming uniform solution.The hexadecyltrimethylammonium chloride solution that after cutting 0.25 gram filter cotton puts into configuration is soaked.Take 0.25 gram of ammonium permanganate, ammonium permanganate is joined and is placed with in the hexadecyltrimethylammonium chloride solution of filter cotton.Ultrasonicly to dissolve completely to ammonium permanganate, add 5 milliliters of ethylene glycol subsequently, the solution of gained to be positioned under room temperature reaction 10 hours.Taking-up filter cotton is dried, and namely obtains the filter cotton of Mn oxide load.
Embodiment 6
At room temperature measure the filter cotton of the Supported Manganese oxide that embodiment 1 ~ 5 obtains to the removal effect of formaldehyde in air.Take material prepared by 0.15g, be 4mg/m3 in the inlet gas concentration of formaldehyde, relative humidity 30 ~ 40%, air velocity is 1L/min, face velocity is 352.8cm/min, the time of staying ~ 0.1s, after the scavenging material continuously prepared respectively by ~ 0.15g embodiment 1 ~ 4 with overdraught reacts 1 hour with this understanding, as shown in Figure 4, filtering material PARA FORMALDEHYDE PRILLS(91,95) under the time of staying of realistic application of this material small amount under higher formaldehyde atmosphere has good removal effect to the removal effect of formaldehyde.
For material prepared by embodiment 2, investigate the regeneration effect of the filter cotton of Supported Manganese oxide.The inlet gas concentration of setting formaldehyde is 0.5mg/m3, relative humidity 40%, air velocity is 1L/min, face velocity is 352.8cm/min, with overdraught continuously by the scavenging material of 0.32g embodiment 2 preparation, with this understanding, as shown in Figure 5, the filter cotton of freshly prepd Supported Manganese oxide is still 70% at the clearance of reaction PARA FORMALDEHYDE PRILLS(91,95) after 80 hours to the clean-up effect of formaldehyde.The scavenging material of reaction after 80 hours thermal regeneration 2 hours at 80 DEG C, under above-mentioned the same terms, again measure the removal capacity of its PARA FORMALDEHYDE PRILLS(91,95), the removal effect of its PARA FORMALDEHYDE PRILLS(91,95) is identical with fresh sample, illustrates can regenerate this scavenging material by this mode.
The material of above-mentioned filter cotton base material is acrylic fibers, cotton, gauze, non-woven fabrics etc. can also be selected to have fiber of filtration of particulate matters function etc. as base material; Above-mentioned ultrasonic dissolution method can also use stirring means; The method of above-mentioned heated at constant temperature can adopt heated at constant temperature in water-bath or at room temperature, the heater of electric jacket, controllable temperature can; Drying at room temperature or with the heater of controllable temperature can carry out drying.
The material for air purification prepared according to said method can be applied to and anyly need to purify air in the purifier of middle formaldehyde and/or ozone; Or directly scavenging material of the present invention is positioned in the space needing purifying formaldehyde and/or ozone.Directly scavenging material of the present invention is positioned in the space needing purification, not only with low cost, and still can reach the effect of formaldehyde in extraordinary decomposition air, ozone.
In addition, those skilled in the art also can do other change in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (5)
1. a preparation method for material for air purification, is characterized in that, the method comprises the following steps:
(1) quaternary ammonium salt and permanganate are dissolved in water, add base material; The concentration of quaternary ammonium salt is 0.1 ~ 10g/L, and permanganate is 1:10 ~ 1:300 with the amount of substance ratio of reducing agent;
(2) add reducing agent in step (1) gained solution, fully stir evenly;
(3) solution of step (2) gained is carried out heated at constant temperature, heating-up temperature is room temperature ~ 50 DEG C;
(4) take out base material and carry out drying, obtain finished product, load is birnessite type Mn oxide on base material;
Described reducing agent is a kind of in methyl alcohol, ethanol and ethylene glycol or their any combination;
Described quaternary ammonium salt is the mixture of a kind of or arbitrary proportion in softex kw and hexadecyltrimethylammonium chloride.
2. preparation method according to claim 1, is characterized in that, the mass ratio of described permanganate and base material is 1:0.2 ~ 1:2.
3. preparation method according to claim 1, is characterized in that, described permanganate is water miscible permanganate.
4. preparation method according to claim 3, is characterized in that, described water miscible permanganate is a kind of in sodium permanganate, potassium permanganate and ammonium permanganate or their any combination.
5. preparation method according to claim 1, is characterized in that, the described heat time is 0.5 ~ 12 hour; Described baking temperature is room temperature ~ 200 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139928.3A CN103480267B (en) | 2013-04-22 | 2013-04-22 | Material for air purification and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139928.3A CN103480267B (en) | 2013-04-22 | 2013-04-22 | Material for air purification and its preparation method and application |
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| Publication Number | Publication Date |
|---|---|
| CN103480267A CN103480267A (en) | 2014-01-01 |
| CN103480267B true CN103480267B (en) | 2016-03-30 |
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