CN106334549B - It is a kind of for the composite porous and preparation method thereof of purifying formaldehyde and TVOCs - Google Patents
It is a kind of for the composite porous and preparation method thereof of purifying formaldehyde and TVOCs Download PDFInfo
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 239000002131 composite material Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000003054 catalyst Substances 0.000 claims abstract description 31
- 239000011824 nuclear material Substances 0.000 claims abstract description 31
- 239000011257 shell material Substances 0.000 claims abstract description 23
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 61
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 44
- 239000000306 component Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 229910052799 carbon Inorganic materials 0.000 claims description 26
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 235000012343 cottonseed oil Nutrition 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 2
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 30
- 238000000746 purification Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 229930040373 Paraformaldehyde Natural products 0.000 abstract description 7
- 229920002866 paraformaldehyde Polymers 0.000 abstract description 7
- 238000004887 air purification Methods 0.000 abstract description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 23
- 239000000243 solution Substances 0.000 description 19
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 230000002000 scavenging effect Effects 0.000 description 8
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000005995 Aluminium silicate Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 235000007926 Craterellus fallax Nutrition 0.000 description 2
- 240000007175 Datura inoxia Species 0.000 description 2
- 239000004375 Dextrin Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229960000892 attapulgite Drugs 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 235000012216 bentonite Nutrition 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000019425 dextrin Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052625 palygorskite Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229940071125 manganese acetate Drugs 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- B01J21/18—Carbon
-
- 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
- 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
- B01J27/24—Nitrogen compounds
- B01J27/25—Nitrates
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of for the composite porous and preparation method thereof of purifying formaldehyde and TVOCs, belongs to material for air purification field.It is a kind of for the composite porous of purifying formaldehyde and TVOCs, it is characterised in that：The composite material has nucleocapsid, is made of the nuclear material containing porous carbon material and the shell material containing catalyst component；The nuclear material and shell material all have the duct circulated for gas.The composite porous material forming process that can change of the present invention is simple, easy to operate.The purification capacity of PARA FORMALDEHYDE PRILLS(91,95) can reach 6.05mg/g, and 299.41mg/g is up to the purification capacity of toluene.
Description
Technical field
The present invention relates to a kind of for the composite porous and preparation method thereof of purifying formaldehyde and TVOCs, belongs to air
Scavenging material field.
Background technology
In recent years, with the development of economy with the raising of living standards of the people, new home largely builds up, indoor decoration shape
Formula also becomes increasingly complex diversification.China《Indoor Air Quality standards》The maximum permissible concentration of formaldehyde is in middle regulation room
0.10mg/m3, most new finishing families exceeded several times to more than ten of indoor formaldehyde concentration in 5-10 months after the completion of finishing
Times, there is serious negative effect to health.In addition, it is not only formaldehyde, and also benzene, toluene, dimethylbenzene etc. have
Effumability and hard-decomposed organic compound (TVOCs) etc..Therefore it develops efficient, environmentally friendly, non-secondary pollution multi-functional
Composite air scavenging material has great importance.
The retrieval of technology is found：Document discloses a kind of material for air purification, and the material for air purification is by permanganic acid
Potassium, manganese acetate, sodium hydroxide obtain function ingredients by certain mass than dissolving, hybrid reaction, filter pressing.And by itself and structural promoter
Mixing, extrusion molding, it is 2-4mm, the scavenging material of length 5-12mm, the specific surface area of scavenging material to dry and particle diameter is made
For 110-120m2/ g, real density 0.7-0.8g/mL.It is wherein each group in terms of 100% by the gross mass of the scavenging material
The mass percentage divided is as follows：Active component 35-60%, other functional structure auxiliary agents are 40-65%.The air purification material
In application process, detergent power and granule strength are easily by the composite of application environment, and its internal pore structure number for material
It measures limited so that gas pollutant cannot or enter in the hole of material internal on a small quantity, reduce in gas pollutant and material
The contact probability of portion's active component, and then the purification efficiency of scavenging material is caused to reduce, service life is short, while also resulting in material
The waste of the internal active component of material.
Invention content
The purpose of the present invention is to provide the composite porous and its preparation sides of a kind of long-acting purifying formaldehyde and TVOCs
Method.
It is a kind of for the composite porous of purifying formaldehyde and TVOCs, the composite material has nucleocapsid, by containing
Nuclear material by porous carbon material and the shell material containing catalyst component form；The nuclear material and shell material all have for gas
The duct of body circulation.
In above-mentioned technical proposal, the catalyst component is for being catalytically decomposed formaldehyde and TVOCs.
Further, the porous carbon material is modified active carbon particle, is prepared as follows：By activated carbon
Grain is placed in the salpeter solution of 1mol/L, 50 DEG C of constant temperature stirring dipping 12h；It is 6.5~7.5 to be washed with water to cleaning solution pH, so
Afterwards 85~105 DEG C of freeze-day with constant temperature for 24 hours, wherein the ratio of active carbon particle and salpeter solution be 1g：2~8mL.
Activated carbon possesses abundant pore structure and huge specific surface area, and chemical property is stablized in addition, high mechanical strength,
Acidproof, alkaline-resisting, heat-resisting, not soluble in water and organic solution can regenerate, and be a kind of excellent high-strength bone frame material.At modified
Managed activated carbon surface introduce or lose certain functional groups, make activated carbon be easy with other function ingredients (binder, catalysis
Group is graded) it is combined together.Also there is certain special absorption property and catalytic characteristics simultaneously.Modified activated carbon is introduced
In composite material, the intensity of particle itself can be enhanced, while also enriching the pore structure inside particle, make gas pollutant-
Formaldehyde, it is easier to enter inside particle, carbon dioxide and water are combined and be converted to rapidly with catalyst component particle, two will not be caused
Secondary pollution.Modified activated carbon composition internal gutter more horn of plenty, and to polarity and nonpolar TVOCs gas pollutants point
Son has apparent ascendant trend.Pass through scavenging material of the physics after compound, the purification of different function component PARA FORMALDEHYDE PRILLS(91,95) and TVOCs
Ability can not be limited each other.The synergistic effect of a variety of catalyst components in composite material, significantly improve its PARA FORMALDEHYDE PRILLS(91,95) and
The detergent power of TVOCs.
Further, the nuclear material contains catalyst component.Specifically, the preferably described nuclear material of the present invention, by weight
Part is made by following raw materials：
In above-mentioned technical proposal, the preferably described nuclear material is prepared as follows：Modified active carbon particle, bonding are helped
Agent, catalyst component, pore creating material after mixing, add water to mediate abundant, extrusion molding, and room temperature is protected from light dry, ventilation condition decentralization
At least 48h is set, nuclear material particle is obtained.
In above-mentioned technical proposal, the shape of the nuclear material particle can be prepared as needed, such as spherical, cylindrical
Deng being preferably diameter 2mm, the cylindrical particle of 2~4mm of particle length.
In above-mentioned technical proposal, the preferably described pore creating material is sodium bicarbonate (NaHCO3), preferably by NaHCO3It is added to material
It when middle, is dissolved in water in advance, aqueous solution mass percentage concentration is 0.6%~0.8%.
In above-mentioned technical proposal, the preferably described adhesive aid is one in attapulgite clay, bentonite, dextrin, kaolin
Kind or combinations thereof.
In above-mentioned technical proposal, the preferably described active carbon particle be cocoanut active charcoal, grain graininess be 100 mesh, 150 mesh,
200 mesh, 250 mesh, 300 mesh or its two kinds and three kinds of combination.
The composite porous preferably shell material of the present invention for purifying formaldehyde and TVOCs is made as follows
It is standby：Catalyst component, adhesive, water are proportionally added into agitator tank, 30min is stirred, mixing speed is 1800~3200r/
Min crosses colloid mill 2 times, obtains shell material slurries,
Wherein, the weight ratio of catalyst component, binder and water is 4~6：5~9：70~105.
In above-mentioned technical proposal, preferably the adhesive is one in attapulgite clay, bentonite, dextrin, kaolin
The additive amount of the combination of kind or several or any one of the above and aluminium dihydrogen phosphate, aluminium dihydrogen phosphate is adhesive gross weight
0.5~3.0%.
It is of the present invention to be urged for preferably described in composite porous all technical solutions of purifying formaldehyde and TVOCs
Change group is divided into manganese dioxide.
Further, the preferably described catalyst component nanometer electrode manganese dioxide of the present invention, preferably its granularity are 30~80nm.
The composite porous method it is preferable to use whitewashing coating of the present invention for purifying formaldehyde and TVOCs makes shell
Material paste is wrapped in nuclear material particle outer layer.
The above-mentioned technique for being related to " whitewashing coating " can carry out in whitewashing coating equipment in sugar production line disclosed in the prior art, can business
It buys.
Preferably, the composite material is prepared as follows：Shell material slurries are contained into the charge tank of ejecting gun, are adjusted
The liquid supply speed of whole spray gun is to 200~300g/min；Nuclear material particle is put into centrifugal rotation seed-coating machine, 60~90 r/min
Low speed after the 2~4min that dallies, improves seed-coating machine rotary speed to 280~360r/min, and adjustment intake to 994~
1241mL/min carries out whitewashing Cotton seeds to nuclear material particle.
Specific surface area of the present invention for purifying formaldehyde and the composite porous preferably composite material of TVOCs
For 280~360m2/ g, heap density are 0.36~0.48g/mL.
It is a further object of the present invention to provide above-mentioned for the composite porous preferably described multiple of purifying formaldehyde and TVOCs
The preparation method of condensation material.
A kind of composite porous preparation method for purifying formaldehyde and TVOCs, including following processing steps：
1. active carbon particle is placed in the salpeter solution of 1mol/L, 50 DEG C of constant temperature stirring dipping 12h；It is washed with water to and washes
It is 6.5~7.5 to wash liquid pH, then 85~105 DEG C of freeze-day with constant temperature for 24 hours, wherein the ratio of active carbon particle and salpeter solution is
1g：2~8mL；
2. by step, 1. the modified active carbon particle of gained, adhesive aid, catalyst component, pore creating material after mixing, add
Water mediates abundant, extrusion molding, and room temperature is protected from light under dry, ventilation condition and places at least 48h, obtains nuclear material particle；
3. catalyst component, adhesive, water are proportionally added into agitator tank, stir 30min, mixing speed be 1800~
3200r/min crosses colloid mill 2 times, obtains shell material slurries, wherein the weight ratio of catalyst component, binder and water is 4~6：5~
9：70~105；
4. by step, 3. gained shell material slurries are contained into the charge tank of ejecting gun, adjust the liquid supply speed of spray gun to 200
~300g/min；By step, 2. gained nuclear material particle is put into centrifugal rotation seed-coating machine, 60~90r/min low speed, and idle running 2~
After 4min, seed-coating machine rotary speed is improved to 280~360r/min, adjustment intake is to 994~1241 mL/min, to core material
Material particle carries out whitewashing Cotton seeds.
The above-mentioned composite porous preparation method for purifying formaldehyde and TVOCs further include step 5., 4. by step
Gained composite material granular room temperature avoid light place 12h is dried at 65~105 DEG C to get for purifying formaldehyde and TVOCs
It is composite porous.
The beneficial effects of the invention are as follows：
1, the composite porous appearance forrns that can change material of the present invention for purifying formaldehyde and TVOCs
It is fabricated to the matched material for core form of air purifier.Moulding process is simple, easy to operate.
2, of the present invention for the composite porous of purifying formaldehyde and TVOCs, by nano level active component dioxy
Change manganese to be combined together in a manner of physical mixed with modified activated carbon particle, enhance the intensity of particle itself, while also enriching
Pore structure inside particle makes gas pollutant-formaldehyde, it is easier to enter inside particle, be combined simultaneously with particles of active components
It is converted to carbon dioxide and water rapidly, secondary pollution will not be caused.Modified activated carbon composition internal gutter more horn of plenty, table
The polar functional group in face increases, and is easily combined with adhesive, forms firm solid space mesh skeleton, and particles of active components can be with
It is uniformly adhered in skeleton structure, improves the probability of gas pollutant molecule and active component collision.To polarity and non-pole
The TVOCs gas pollutant molecules of property have apparent ascendant trend.Pass through scavenging material of the physics after compound, different function group
The detergent power of PARA FORMALDEHYDE PRILLS(91,95) and TVOCs is divided to can not be limited each other.The synergistic effect of various active component in composite material, greatly
Amplitude improves its PARA FORMALDEHYDE PRILLS(91,95) and the detergent power of TVOCs.
3, of the present invention for the composite porous of purifying formaldehyde and TVOCs, the purification capacity of PARA FORMALDEHYDE PRILLS(91,95) can
Reach 6.05mg/g, 299.41mg/g is up to the purification capacity of toluene.
Specific implementation mode
Following non-limiting embodiments can make those skilled in the art be more fully understood the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments is unless otherwise specified conventional method；The reagent and material, such as
Without specified otherwise, commercially obtain.
Following embodiments whitewashing coating equipment in sugar production line used, which is that Changzhou is good, rises drying and granulating equipment Co., Ltd BG-40.
For the evaluation of the purifying property of purifying formaldehyde and the composite porous PARA FORMALDEHYDE PRILLS(91,95) of TVOCs described in following embodiments
It is carried out in the straight type quartz reaction pipe reactor of Φ 3mm, long 280mm, composite material test quality is 50mg, formaldehyde dynamic detection
The generation concentration of system is 2.80ppm, and carrier gas is air.22 DEG C, relative humidity 53%RH indoors of detection experiment, atmospheric pressure environment
Under the conditions of carry out, reaction gas volume flow be 500mL/min, detect that formaldehyde is dense by PPM companies of Britain htv-m recorders
It spends and purifying formaldehyde capacity is calculated.
It is of the present invention to be evaluated in Φ 3 for the composite porous purifying property to toluene of purifying formaldehyde and TVOCs
It is carried out in the straight type quartz reaction pipe reactor of mm, long 280mm, composite material test quality is 50mg, toluene dynamic detection system
Generation concentration be 50ppm, carrier gas is air.23 DEG C, relative humidity 48%RH indoors of detection experiment, atmospheric pressure environment condition
Lower progress, reaction gas volume flow are 810mL/min, and toluene concentration is detected by Hua Rui companies of U.S. ppbRAE recorders
And toluene purification capacity is calculated.
The granularity of nanometer electrode manganese dioxide used is 30~80nm in following embodiments.
Embodiment 1
1, Activated Carbon Pretreatment：Configure 300mL salpeter solutions (1mol/L), precise 100g active carbon particles (150
Mesh) it is put into salpeter solution, 50 DEG C of constant temperature stirring dipping 12h；Fully washed with deionized water again until cleaning solution pH be 6.5,
Then 85 DEG C of freeze-day with constant temperature for 24 hours.The ratio of active carbon particle and salpeter solution is 1g:3mL.
2, the preparation of nuclear material：It is in advance that pore creating material sodium bicarbonate is soluble in water, be prepared into a concentration of 0.6% it is water-soluble
Liquid；By active carbon particle, adhesive aid (the recessed native stick clay of 200 mesh), the catalyst component (nanoscale after step (1) modification
Manganese dioxide), powder raw material is uniformly mixed, be added on demand preprepared sodium bicarbonate aqueous solution mediate fully, be extruded into
Type obtains diameter 2mm, the cylindrical pellet of 2~4mm of particle length.Room temperature is protected from light, dries, placing 48h under ventilation condition, standby
With.Active carbon particle, pore creating material (pure sodium bicarbonate) after catalyst component, adhesive aid, modification：The mass ratio of water is
20：16：5：0.3：60.
3, the preparation of shell material slurries：By catalyst component (nanometer electrode manganese dioxide), viscous conjunction agent ﹝ m, (the recessed native stick of 200 mesh is glutinous
Soil)：M (aluminium dihydrogen phosphate)=1:0.5 ﹞, water are proportionally added into agitator tank, high-speed stirred 30min, cross colloid mill 2 times.Stirring
Speed control is in 1800r/min, wherein m (catalyst component)：M (binder)：M (water)=4：5：70.
4, whitewashing coating：Then the shell material slurries obtained by step (3) are contained into the charge tank of ejecting gun, adjusts spray gun
Liquid supply speed to 200g/min.Cylindric nuclear material particle obtained by step (2) is put into centrifugal rotation seed-coating machine, 60r/
Min low speed after the 2min that dallies, improves seed-coating machine rotary speed to 280r/min, adjustment intake is to 994mL/min, to cylinder
Shape nuclear material particle carries out whitewashing Cotton seeds 2min.
5, composite material post-processes：By the composite material granular room temperature avoid light place 12h obtained by step (4), in 65 DEG C of items
It is dried under part to get to for the composite porous of purifying formaldehyde and TVOCs.
The purification capacity of composite material formaldehyde is 3.76mg/g, and the adsorption capacity of toluene is 248.65mg/g.
Embodiment 2
1, Activated Carbon Pretreatment：Configure 300mL salpeter solutions (1mol/L), precise 100g active carbon particles (200
Mesh) it is put into salpeter solution, 50 DEG C of constant temperature stirring dipping 12h；Fully washed with deionized water again until cleaning solution pH be 7.5,
Then 85 DEG C of freeze-day with constant temperature for 24 hours.The ratio of active carbon particle and salpeter solution is 1g:3mL.
2, the preparation of nuclear material：It is in advance that pore creating material sodium bicarbonate is soluble in water, be prepared into a concentration of 0.6% it is water-soluble
Liquid；By active carbon particle, adhesive aid (200 mesh kaolin), catalyst component (the nanoscale dioxy after step (1) modification
Change manganese), powder raw material is uniformly mixed, and preprepared sodium bicarbonate aqueous solution is added on demand and mediates abundant, extrusion molding, obtains
To diameter 2mm, the cylindrical pellet of 2~4mm of particle length.Room temperature is protected from light, dries, placing 48h under ventilation condition, spare.It urges
Change active carbon particle, pore creating material (pure sodium bicarbonate) after component, adhesive aid, modification：The mass ratio of water is 25：
20：7：0.6：75.
3, the preparation of shell material slurries：By catalyst component (nanometer electrode manganese dioxide), viscous conjunction agent ﹝ m (200 mesh kaolin)：m
(aluminium dihydrogen phosphate)=1:0.5 ﹞, water are proportionally added into agitator tank, high-speed stirred 30min, cross colloid mill 2 times.Mixing speed
Control is in 2600r/min.M (catalyst component)：M (binder)：M (water)=5：7： 95.
4 and then the shell material slurries obtained by step (3) are contained into the charge tank of ejecting gun, adjust spray gun for liquid speed
It spends to 200g/min.Cylindric nuclear material particle obtained by step (2) is put into centrifugal rotation seed-coating machine, 60 r/min are low
Speed after the 3min that dallies, improves seed-coating machine rotary speed to 320r/min, adjustment intake is to 1100 mL/min, to cylindric core
Material granule carries out whitewashing Cotton seeds 4min.
5, composite material post-processes：By the composite material granular room temperature avoid light place obtained by step (4), under the conditions of 85 DEG C
It dries to get to for the composite porous of purifying formaldehyde and TVOCs.
The purification capacity of composite material formaldehyde is 4.65mg/g, and the adsorption capacity of toluene is 252.65mg/g.
Embodiment 3
1, Activated Carbon Pretreatment：Configure 300mL salpeter solutions (1mol/L), precise 100g Huo charcoal Ke Li ﹝ m (150
Mesh)：M (200 mesh)=4：1 ﹞ is put into salpeter solution, 50 DEG C of constant temperature stirring dipping 12h；Fully washed with deionized water again until
Cleaning solution pH be 7.0, then 85 DEG C of freeze-day with constant temperature for 24 hours.The ratio of active carbon particle and salpeter solution is 1g:5mL.
2, the preparation of nuclear material：It is in advance that pore creating material sodium bicarbonate is soluble in water, be prepared into a concentration of 0.6% it is water-soluble
Liquid；By active carbon particle, adhesive aid (the recessed native stick clay of 200 mesh), the catalyst component (nanoscale after step (1) modification
Manganese dioxide), powder raw material is uniformly mixed, be added on demand preprepared sodium bicarbonate aqueous solution mediate fully, be extruded into
Type obtains diameter 2mm, the cylindrical pellet of 2~4mm of particle length.Room temperature is protected from light, dries, placing 48h under ventilation condition, standby
With.Active carbon particle, pore creating material (pure sodium bicarbonate) after catalyst component, adhesive aid, modification：The mass ratio of water is
30：24：9：1.0：90.
3, the preparation of shell material slurries：By catalyst component (nanometer electrode manganese dioxide), viscous conjunction agent ﹝ m, (the recessed native stick of 200 mesh is glutinous
Soil)：M (aluminium dihydrogen phosphate)=1:0.5 ﹞, water are proportionally added into agitator tank, high-speed stirred 30min, cross colloid mill 2 times.Stirring
Speed control is in 3000r/min.M (catalyst component)：M (binder)：M (water)=6： 9：105.
4 and then the shell material slurries obtained by step (3) are contained into the charge tank of ejecting gun, adjust spray gun for liquid speed
It spends to 200g/min.Cylindric core material particle in step (2) is put into centrifugal rotation seed-coating machine, 60r/min low speed, is dallied
After 4min, seed-coating machine rotary speed is improved to 360r/min, adjustment intake carries out whitewashing packet to 1241mL/min to nuclear material
Clothing handles 2min.
5, it by the composite material granular room temperature avoid light place obtained by step (4), is dried under the conditions of 105 DEG C to get to use
In the composite porous of purifying formaldehyde and TVOCs.
The purification capacity of composite material formaldehyde is 6.05mg/g, and the adsorption capacity of toluene is 299.41mg/g.
Claims (7)
1. a kind of for the composite porous of purifying formaldehyde and TVOCs, it is characterised in that：The composite material has nucleocapsid knot
Structure is made of the nuclear material containing porous carbon material and the shell material containing catalyst component；The nuclear material and shell material are equal
With the duct circulated for gas,
The nuclear material is made by following raw materials by weight：
The catalyst component is nanometer electrode manganese dioxide；
The porous carbon material is the active carbon particle of modification, is prepared as follows：Active carbon particle is placed in 1mol/L
Salpeter solution in, 50 DEG C of constant temperature stirring dipping 12h；It is 6.5~7.5 to be washed with water to cleaning solution pH, then at 85~105 DEG C
Freeze-day with constant temperature is for 24 hours, wherein the ratio of active carbon particle and salpeter solution is 1g：2~8mL.
2. composite material according to claim 1, it is characterised in that：The active carbon particle is cocoanut active charcoal, particle
Granularity is 100 mesh, 150 mesh, 200 mesh, 250 mesh, 300 mesh or its two kinds and three kinds of combination.
3. composite material according to claim 1, it is characterised in that：The nuclear material is prepared as follows：It will be modified
Active carbon particle, adhesive aid, catalyst component, pore creating material after mixing, add water mediate fully, extrusion molding, room temperature keeps away
At least 48h is placed under light drying, ventilation condition, obtains nuclear material particle.
4. composite material according to claim 1, it is characterised in that：The shell material is prepared as follows：It will catalysis
Component, adhesive, water are proportionally added into agitator tank, stir 30min, and mixing speed is 1800~3200r/min, crosses colloid mill
2 times, shell material slurries are obtained,
Wherein, the weight ratio of catalyst component, binder and water is 4~6：5~9：70~105.
5. composite material according to claim 1, it is characterised in that：The composite material is prepared as follows：By shell
Material slurry is contained into the charge tank of ejecting gun, adjusts the liquid supply speed of spray gun to 200~300g/min；Nuclear material particle is put
Enter in centrifugal rotation seed-coating machine, 60~90r/min low speed, after the 2~4min that dallies, raising seed-coating machine rotary speed to 280~
360r/min, adjustment intake carry out whitewashing Cotton seeds to 994~1241mL/min to nuclear material particle.
6. composite material according to claim 1, it is characterised in that：The specific surface area of the composite material be 280~
360m2/ g, heap density are 0.36~0.48g/mL.
7. the composite porous preparation method described in claim 1 for purifying formaldehyde and TVOCs, it is characterised in that：
Including following processing steps：
1. active carbon particle is placed in the salpeter solution of 1mol/L, 50 DEG C of constant temperature stirring dipping 12h；It is washed with water to cleaning solution
PH be 6.5~7.5, then 85~105 DEG C of freeze-day with constant temperature for 24 hours, wherein the ratio of active carbon particle and salpeter solution be 1g：2~
8mL；
2. by step, 1. the modified active carbon particle of gained, adhesive aid, catalyst component, pore creating material after mixing, add water to pinch
Abundant, extrusion molding is closed, room temperature is protected from light under dry, ventilation condition and places at least 48h, obtains nuclear material particle；
3. catalyst component, adhesive, water are proportionally added into agitator tank, 30min is stirred, mixing speed is 1800~3200r/
Min crosses colloid mill 2 times, obtains shell material slurries, wherein the weight ratio of catalyst component, binder and water is 4~6：5~9：70~
105；
4. by step, 3. gained shell material slurries are contained into the charge tank of ejecting gun, adjust the liquid supply speed of spray gun to 200~
300g/min；By step, 2. gained nuclear material particle is put into centrifugal rotation seed-coating machine, 60~90r/min low speed, and idle running 2~
After 4min, seed-coating machine rotary speed is improved to 280~360r/min, adjustment intake is to 994~1241mL/min, to nuclear material
Particle carries out whitewashing Cotton seeds.
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| CN107308931A (en) * | 2017-07-04 | 2017-11-03 | 北京大督硅藻新材料技术股份有限公司 | A kind of silicon titanium composite filter element material and its preparation method and application |
| CN108126654A (en) * | 2017-12-08 | 2018-06-08 | 北京东方计量测试研究所 | A kind of material for air purification, preparation method and application |
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| WO2020001339A1 (en) * | 2018-06-25 | 2020-01-02 | 浙江宸唯环保科技有限公司杭州分公司 | Supported catalyst and preparation method therefor, and air purification composite material having same |
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| CN112774650B (en) * | 2019-11-08 | 2022-03-11 | 成都易态科技有限公司 | Formaldehyde purification material preparation, preparation method and application |
| CN112774651B (en) * | 2019-11-08 | 2022-03-11 | 成都易态科技有限公司 | Formaldehyde purification material preparation, preparation method and application |
| CN112774652B (en) * | 2019-11-08 | 2022-03-15 | 成都易态科技有限公司 | Formaldehyde purification porous film and preparation method thereof |
| CN113181973B (en) * | 2021-04-08 | 2024-02-02 | 浙江新火原新材料科技有限公司 | Porous catalyst particles and forming method thereof |
| CN113181767B (en) * | 2021-04-30 | 2023-05-16 | 江苏开放大学（江苏城市职业学院） | Capsule type slow-release formaldehyde scavenger and preparation process thereof |
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