CN108187631A - A kind of preparation method of improved material for air purification - Google Patents
A kind of preparation method of improved material for air purification Download PDFInfo
- Publication number
- CN108187631A CN108187631A CN201810046370.7A CN201810046370A CN108187631A CN 108187631 A CN108187631 A CN 108187631A CN 201810046370 A CN201810046370 A CN 201810046370A CN 108187631 A CN108187631 A CN 108187631A
- Authority
- CN
- China
- Prior art keywords
- air purification
- preparation
- graphene oxide
- prepared
- adds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 63
- 238000004887 air purification Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000012876 carrier material Substances 0.000 claims abstract description 31
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229920005610 lignin Polymers 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 12
- 229920000858 Cyclodextrin Polymers 0.000 claims description 9
- 239000001116 FEMA 4028 Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 9
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 9
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 9
- 229960004853 betadex Drugs 0.000 claims description 9
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 9
- 239000000084 colloidal system Substances 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 8
- 150000004040 pyrrolidinones Chemical class 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 239000012286 potassium permanganate Substances 0.000 claims description 6
- 239000004317 sodium nitrate Substances 0.000 claims description 6
- 235000010344 sodium nitrate Nutrition 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 239000000908 ammonium hydroxide Substances 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 5
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 14
- 238000006731 degradation reaction Methods 0.000 abstract description 14
- 238000000746 purification Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000000356 contaminant Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000000505 pernicious effect Effects 0.000 description 5
- 230000002000 scavenging effect Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910002666 PdCl2 Inorganic materials 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- -1 polyethylene Pyrrolidones Polymers 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(I) nitrate Inorganic materials [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910002621 H2PtCl6 Inorganic materials 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000008096 xylene 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
-
- B01J35/61—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The present invention relates to a kind of preparation method of material for air purification, which includes carrier material and active metal；The carrier material adulterates graphene oxide and CeO using lignin as basic material2, form a kind of carrier of composite material, the material for air purification being prepared using the present processes, it is strong to adsorb ability of air, and contaminant degradation can be promoted, so as to improve the purification efficiency of material for air purification, with efficient air purification effect, and service life is long.
Description
Technical field
This application involves the preparation methods of a kind of material for air purification more particularly to a kind of containing lignin and graphene
The preparation method of material for air purification.
Background technology
With the increasingly raising and the quickening of urbanization process of people's living standard, a large amount of rows of motor vehicle exhaust
It puts and waits factors, the getting worse of air environmental pollution and deterioration.Such as house decoration material, ornament materials in daily life
Equally there is also certain pollution gas, and contain a large amount of carcinogen, such as formaldehyde, benzene,toluene,xylene, ammonia
People’s lives health Deng, serious threat.With the exacerbation of atmosphere pollution, people continually develop air purifying preparation, in the market
There are all kinds of air purifying preparations.
Existing air purification is mainly TiO with catalysis material2Based on photochemical catalyst, but catalytic efficiency is very low, because
It is the key that solve the problems, such as that this, which selects suitable carrier material or compound other elements,.Common carrier is activated carbon and silica gel
Support and the effect of gas absorption are functioned only as Deng, carrier, does not play the effect for pushing catalytic efficiency.Simultaneously for harmful gas
Body treatment effect is to be improved.
Lignin and its derivative widely should at present due to having a large amount of surface active groups and specific surface area
For fields such as heavy metal adsorption, Dye Adsorptions；Chinese patent CN201210595078.3 discloses one kind with lignin simultaneously
TiO for carrier2Type air purifying preparation obtains preferable degradation effect.Chinese patent CN201410007028.8 is disclosed
The air purifying preparation of a kind of appendix active metal or reactive metal oxides, shows excellent air purification effect.But for
The material for air purification of high-efficient and lasting is still the active demand of this field institute.
Present inventor studies the air purifying preparation using lignin as carrier, develops the air of the application
Scavenging material has many advantages, such as that degradation capability is strong, and service life is long, has a vast market.
Invention content
The object of the present invention is to provide a kind of material for air purification, are changed by the carrier components to air purifying preparation
Into, effectively to improve air purification effect, can be directed to air in a variety of harmful ingredients degrade, while can also extend
Service life.
Lignin and its derivative, can with suction-operated due to having a large amount of surface active groups and specific surface area
For the carrier components of air purifying preparation, on the one hand the skeletal support of air purifying preparation can be provided, on the other hand contribute to shape
Into loose porous structure, so as to enhance the effect of absorption air；In addition, being modified by introducing graphene oxide, improve
It is catalyzed the efficiency and service life of pernicious gas degradation.It is improved by above-mentioned both sides, enhances the air purifying preparation of the present invention
Degradation capability and degradation efficiency.Inventor has found by practice, when using lignin as basic material, and adulterates graphene oxide
And CeO2, a kind of carrier of composite material is formed, the carrier adsorption ability of air is strong, and can effectively facilitate catalytic degradation dirt
Contaminate gas.
In order to solve the above technical problems, invention provides a kind of material for air purification, which is characterized in that the material for air purification
Including carrier material and active metal, the carrier material contains lignin, graphene oxide and CeO2。
As preferred scheme is invented, in herein described material for air purification, the active metal is Pt, Pd, Ag
In one or more mixtures.
Preferably, the active metal is Pt, Pd.
It is furthermore preferred that the active metal is Pd.
Further, the material for air purification is prepared by following methods：Prepare the solubility of active metal
Then the aqueous solution of salt adds in carrier material, and add in DMF or pyrrolidones back flow reaction 8-15h, after reaction, washing,
Alcohol is washed, and is dried to obtain the material for air purification for loading active metal.
Further, the carrier material is to be prepared via a method which to obtain：By beta-cyclodextrin, cerous nitrate and third
Acrylamide or crotonamide are dissolved in water, with alkali adjusting PH to alkalinity, 1-2h are stirred at -10 DEG C -0 DEG C, then adds in lignin,
And a certain amount of polyvinylpyrrolidone is added in, 3-4h is stirred at room temperature and obtains colloid, then, graphene oxide is added in, in 100-
5-10h is stirred at 200 DEG C, filters to obtain precipitation, calcining 4-10h at 500~700 DEG C will be deposited in and obtain carrier material.
Further, the graphene oxide is prepared by Hummers methods.Preferably, according to such as lower section
It is prepared by method：Graphite powder is added in the concentrated sulfuric acid, sodium nitrate is added in, with KMnO4For oxidant, graphite oxide is first made,
Then graphene oxide is made by ultrasonic disperse.
Further, the material for air purification of the application is prepared via a method which：
1) graphene oxide is prepared using Hummers methods：Graphite powder is added in the concentrated sulfuric acid, adds in sodium nitrate, with
KMnO4For oxidant, graphite oxide is first made, graphene oxide is then made by ultrasonic disperse；
2) carrier material is prepared：Beta-cyclodextrin, cerous nitrate and acrylamide or crotonamide are dissolved in water, with alkali adjust PH to
Alkalinity stirs 1-2h at -10 DEG C -0 DEG C, then adds in lignin, and adds in a certain amount of polyvinylpyrrolidone, and room temperature is stirred
It mixes 3-4h and obtains colloid, then, graphene oxide made from addition step 1) stirs 5-10h at 100-200 DEG C, filters
Precipitation will be deposited in calcining 4-10h at 500~700 DEG C and obtain carrier material；
3) supported active metals：The aqueous solution of the soluble-salt of active metal is prepared, then adds in the load that step 2) is prepared
Body material adds in DMF or pyrrolidones back flow reaction 8-15h, and after reaction, washing, alcohol are washed, and it is active to be dried to obtain load
The material for air purification of metal.
The present invention also provides the preparation methods of the material for air purification of the application, include the following steps：
1) carrier material is prepared：Beta-cyclodextrin, cerous nitrate and acrylamide or crotonamide are dissolved in water, with alkali adjust PH to
Alkalinity stirs 1-2h at -10 DEG C -0 DEG C, then adds in lignin, and adds in a certain amount of polyvinylpyrrolidone, and room temperature is stirred
It mixes 3-4h and obtains colloid, then, add in graphene oxide, 5-10h is stirred at 100-200 DEG C, filter to obtain precipitation, will be deposited in
4-10h is calcined at 500~700 DEG C and obtains carrier material；
2) supported active metals：The aqueous solution of the soluble-salt of active metal is prepared, then adds in the load that step 1) is prepared
Body material adds in DMF or pyrrolidones back flow reaction 8-15h, and after reaction, washing, alcohol are washed, and it is active to be dried to obtain load
The material for air purification of metal.
Further, the graphene oxide described in step 1) is prepared using Hummers methods.
Further, the operation that graphene oxide is prepared using Hummers methods is as follows：Graphite powder is added to dense sulphur
In acid, sodium nitrate is added in, with KMnO4For oxidant, graphite oxide is first made, graphite oxide is then made by ultrasonic disperse
Alkene.
The invention further relates to the material for air purification is used to prepare air purifying preparation, it is arbitrary that this field may be used
It is prepared by a kind of conventional method, for example, material for air purification prepared by the present invention can be mixed with water or organic solvent,
Organic solvent can be ethyl alcohol, acetone, propyl alcohol, by material for air purification (g):Water or organic solvent (ml)=1:30~60 is mixed
It closes, obtains thick slurry, then carry out repeatedly lifting drying, you can obtain air purifying preparation.
The invention further relates to the application being used for the material for air purification in air purification, air purification of the invention
Material can degrade a variety of pernicious gases, suitable for the air purification of all kinds of pollution environment, have good air purification effect.
Material for air purification provided by the invention has various advantages compared to existing material for air purification：
1) using lignin as the basic material of carrier, help to form loose porous structure, so as to enhance the work of absorption air
With；
2) it is modified by introducing graphene oxide in the carrier, improves the efficiency of catalysis pernicious gas degradation and uses the longevity
Life, so as to enhance the degradation capability and degradation efficiency of the air purifying preparation of the present invention；
3) air purifying preparation service life of the invention is long, and air purification ability is stablized, and Applicable temperature range is wider.
Specific embodiment
To make technical scheme of the present invention and its technique effect clearer, clear and definite, example below is enumerated to the present invention
Specific embodiment is further described, but is not intended to limit the present invention.
The required graphene oxide of the present invention is prepared using Hummers methods well known in the art：It is added in reaction bulb
The 400ml concentrated sulfuric acids under ice bath, add in 20g graphite powders, stir 5min, then add in 10g sodium nitrate, 55g is slowly added dropwise
KMnO4, temperature control 1.5h is stirred to react within 5 DEG C, be then stirred to react 1h within 50 DEG C；It is slowly added to reaction solution
1L water is stirred to react 0.5h within 100 DEG C, adds water 650ml again, then adds in 300ml hydrogen peroxide (30%) and is stirred to react
After 0.5h, 700ml (10%) hydrochloric acid is added in.Low-speed centrifugal, washing, the graphite oxide after washing is dispersed in water, ultrasound shake
1h is swung, then under 2500r/min rotating speeds, 0.5h is centrifuged, takes upper suspension up to graphene oxide.
1 Pt/CeO of embodiment2Type material for air purification
Beta-cyclodextrin, cerous nitrate and crotonamide are dissolved in water, obtain each component concentration (mol/L) be respectively 0.25,0.2,
0.22 solution, ammonium hydroxide adjust pH to 10,1.5h are stirred at 0 DEG C, then add in appropriate lignin, and add in a small amount of poly- second
Alkene pyrrolidone is stirred at room temperature 4h and obtains colloid, adds in graphene oxide, 6h is stirred at 100 DEG C, filters to obtain precipitation, will be heavy
The calcining 10h at 500 DEG C that forms sediment obtains carrier material；
Supported active metals Pt：Prepare H2PtCl6Aqueous solution, by 0.2% Pt loadings, add in the carrier material being prepared
Material, the back flow reaction 10h in DMF after reaction, are first washed with water, are washed again with ethyl alcohol, be dried to obtain Pt/CeO2Type air
Scavenging material.
2 Pd/CeO of embodiment2Type material for air purification
Beta-cyclodextrin, cerous nitrate and crotonamide is soluble in water, obtain each component concentration (mol/L) be respectively 0.5 5,
0.4th, 0.3 mixed solution, ammonium hydroxide adjust pH to 9,2h are stirred at -5 DEG C, then add in lignin, and add in a small amount of gather
Vinylpyrrolidone is stirred at room temperature 3h and obtains colloid, adds in graphene oxide, continues to stir 6h at 150 DEG C, filters heavy
It forms sediment, calcining 8h at 600 DEG C will be deposited in and obtain carrier material；
Supported active metals Pd：Prepare PdCl2Aqueous solution, by 0.6% Pd loadings, add in the carrier material being prepared
With pyrrolidones back flow reaction 12h, after reaction, first it is washed with water, is washed again with ethyl alcohol, be dried to obtain Pd/CeO2Type air
Scavenging material.
3 Ag/CeO of embodiment2Type material for air purification
Beta-cyclodextrin, cerous nitrate and acrylamide are dissolved in water, obtain each component concentration (mol/L) be respectively 0.6,0.5,
0.6 mixed solution, ammonium hydroxide adjust pH to 10,1h are stirred at 0 DEG C, then adds in lignin, and adds in a small amount of polyethylene
Pyrrolidones is stirred at room temperature 4h and obtains colloid, then, adds in graphene oxide, 5h is stirred at 200 DEG C, filters to obtain precipitation, will
It is deposited in calcining 4h at 700 DEG C and obtains carrier material；
Supported active metals Ag：Prepare AgNO3Aqueous solution, by 0.6% Ag loadings, add in the carrier material being prepared
With pyrrolidones back flow reaction 10h, after reaction, first it is washed with water, is washed again with ethyl alcohol, be dried to obtain Ag/CeO2Type air
Scavenging material.
4 Pd/CeO of embodiment2Type material for air purification
Beta-cyclodextrin, cerous nitrate and acrylamide is soluble in water, obtain each component concentration (mol/L) be respectively 0.5,0.4,
0.5 mixed solution, ammonium hydroxide adjust pH to 9,2h are stirred at 0 DEG C, then adds in lignin, and adds in a small amount of polyethylene pyrrole
Pyrrolidone is stirred at room temperature 3h and obtains colloid, adds in graphene oxide, continues to stir 6h at 150 DEG C, filters to obtain precipitation, will be heavy
The calcining 8h at 600 DEG C that forms sediment obtains carrier material；
Supported active metals Pd：Prepare PdCl2Aqueous solution, by 0.6% Pd loadings, add in the carrier material being prepared
With pyrrolidones back flow reaction 12h, after reaction, first it is washed with water, is washed again with ethyl alcohol, be dried to obtain Pd/CeO2Type air
Scavenging material.
Reference examples 1
Method according to embodiment 2 prepares material for air purification, but does not add in graphene oxide in the preparation of carrier material,
Its process is same as Example 2.
Reference examples 2
Method according to embodiment 2 prepares material for air purification, but does not add in lignin in the preparation of carrier material, other mistakes
Journey is same as Example 2.
Reference examples 3
Method according to embodiment 2 prepares material for air purification, but does not add in lignin and oxidation in the preparation of carrier material
Graphene, other processes are same as Example 2.
Embodiment 5
The material for air purification that above-described embodiment 1-4 and reference examples 1-3 are prepared, by material for air purification (g):Ethyl alcohol
(ml)=1:45 mixing, stir to get thick slurry, then carry out 4 lifting drying, obtain 7 kinds of air purifying preparations, successively
Labeled as A, B, C, D, E, F, G.
Embodiment 6
7 kinds of air purifying preparations (etc. weight) prepared by embodiment 5, which are fitted into reactor, purifies the air of pollution, air
In pollutant be respectively formaldehyde, benzene, ammonia, hydrogen sulfide, NO, NO2, one kind in CO, the initial concentration of wherein pollutant is
100mg/L over the course of 15 mins using the concentration of chromatographic pollutant, calculates degradation rate, clean-up effect such as table 1：Table 1
From embodiment 6 as can be seen that the air purifying preparation of the present invention had the ability of efficient degradation of contaminant, at 15 minutes
It is interior, more than 90% can be reached substantially to the degradation rate of most of pollutant, and there is good removing energy to a variety of pernicious gases
Power.
Embodiment 7
The service life of the material for air purification of the application is tested using accelerated test, experimental method：Embodiment 5 is made
Standby 7 kinds of air purifying preparations (etc. weight), which are respectively placed in reactor, to be purified, by persistently supplementing reactor harmful gas
Body makes the harmful gas concentration in reactor maintain more than 30% always, and the pernicious gas used is the 1 of formaldehyde and benzene:1 is mixed
Gas is closed, continuous purification takes out air purifying preparation, tested as described in Example 5, wherein pollutant is initial after 60 days
A concentration of 100mg/L over the course of 15 mins using the concentration of chromatographic pollutant, calculates degradation rate, as a result such as table 2：
Table 2
From table 2 it can be seen that the material for air purification of the present invention (is far above in a concentration of more than 30% high density pollution gas
Normal pollution condition) in continuous purification after 60 days, still maintain good purification efficiency, be held essentially constant.Therefore, using this
Air purifying preparation service life prepared by the material for air purification of invention is long, has good application market.
Although present invention has been a degree of descriptions, it will be apparent that, do not departing from the spirit and scope of the present invention
Under the conditions of, the appropriate variation of each condition can be carried out.It is appreciated that the present invention is not limited to the embodiment, and it is attributed to right
It is required that range, include the equivalent replacement of each factor.
Claims (8)
1. a kind of preparation method of material for air purification, which is characterized in that the material for air purification include carrier material and
Active metal, the carrier material contain lignin, graphene oxide and CeO2；Include the following steps：Prepare the activity gold
Then the aqueous solution of the soluble-salt of category adds in the carrier material, and add in DMF or pyrrolidones back flow reaction 8-15h, instead
After answering, washing, alcohol are washed, and are dried to obtain the material for air purification for loading active metal.
2. the preparation method of material for air purification according to claim 1, which is characterized in that the carrier material is by as follows
It is prepared by method：Beta-cyclodextrin, cerous nitrate and acrylamide or crotonamide are dissolved in water, PH is adjusted to alkalinity with alkali, -10
1-2h is stirred at DEG C -0 DEG C, lignin is then added in, and add in a certain amount of polyvinylpyrrolidone, 3-4h is stirred at room temperature and obtains
Then colloid, adds in graphene oxide, 5-10h is stirred at 100-200 DEG C, filter to obtain precipitation, will be deposited in 500~700 DEG C
Lower calcining 4-10h obtains carrier material.
3. according to the preparation method of claim 1-2 any one of them material for air purification, which is characterized in that further comprise
The preparation of the graphene oxide is prepared using Hummers methods.
4. the preparation method of material for air purification according to claim 3, which is characterized in that the system of the graphene oxide
Preparation Method is as follows：Graphite powder is added in the concentrated sulfuric acid, sodium nitrate is added in, with KMnO4For oxidant, oxidation stone is first made
Then graphene oxide is made by ultrasonic disperse in ink.
5. according to the preparation method of claim 1-4 any one of them material for air purification, it is characterised in that the activity gold
Belong to for one or more mixtures in Pt, Pd, Ag, preferably Pt, Pd, most preferably Pd.
6. according to the preparation method of claim 2-5 any one of them material for air purification, which is characterized in that carrier material
In preparation process, alkali used is ammonium hydroxide.
7. according to the preparation method of claim 1-6 any one of them material for air purification, which is characterized in that including walking as follows
Suddenly：1) carrier material is prepared：Beta-cyclodextrin, cerous nitrate and acrylamide or crotonamide are dissolved in water, with alkali adjust PH to
Alkalinity stirs 1-2h at -10 DEG C -0 DEG C, then adds in lignin, and adds in a certain amount of polyvinylpyrrolidone, and room temperature is stirred
It mixes 3-4h and obtains colloid, then, add in graphene oxide, 5-10h is stirred at 100-200 DEG C, filter to obtain precipitation, will be deposited in
4-10h is calcined at 500~700 DEG C and obtains carrier material；
2) supported active metals：The aqueous solution of the soluble-salt of active metal is prepared, then adds in the load that step 1) is prepared
Body material adds in DMF or pyrrolidones back flow reaction 8-15h, and after reaction, washing, alcohol are washed, and it is active to be dried to obtain load
The material for air purification of metal.
8. the preparation method of material for air purification according to claim 7, which is characterized in that further include following steps：It adopts
Graphene oxide is prepared with Hummers methods：Graphite powder is added in the concentrated sulfuric acid, sodium nitrate is added in, with KMnO4For oxidation
Agent is first made graphite oxide, graphene oxide then is made by ultrasonic disperse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046370.7A CN108187631A (en) | 2018-01-17 | 2018-01-17 | A kind of preparation method of improved material for air purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046370.7A CN108187631A (en) | 2018-01-17 | 2018-01-17 | A kind of preparation method of improved material for air purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108187631A true CN108187631A (en) | 2018-06-22 |
Family
ID=62590034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810046370.7A Pending CN108187631A (en) | 2018-01-17 | 2018-01-17 | A kind of preparation method of improved material for air purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108187631A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN1820838A (en) * | 2005-02-16 | 2006-08-23 | 周成一 | Air purifying material and its preparing method |
| CN101703931A (en) * | 2009-11-25 | 2010-05-12 | 中国农业大学 | Load type palladium catalyst and preparation method thereof |
| CN106044744A (en) * | 2016-05-31 | 2016-10-26 | 江苏大学 | Preparation method and application of graphene-lignin-based composite hierarchical pore carbon plate material |
-
2018
- 2018-01-17 CN CN201810046370.7A patent/CN108187631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377729A (en) * | 2001-04-05 | 2002-11-06 | 上海欧臣环境高科技有限责任公司 | Purifying material capable of removing organic gas in air and its preparing method |
| CN1820838A (en) * | 2005-02-16 | 2006-08-23 | 周成一 | Air purifying material and its preparing method |
| CN101703931A (en) * | 2009-11-25 | 2010-05-12 | 中国农业大学 | Load type palladium catalyst and preparation method thereof |
| CN106044744A (en) * | 2016-05-31 | 2016-10-26 | 江苏大学 | Preparation method and application of graphene-lignin-based composite hierarchical pore carbon plate material |
Non-Patent Citations (1)
| Title |
|---|
| 唐新硕等: "《催化科学发展及其理论》", 31 March 2012, 浙江大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102139234B (en) | Loaded reduced precious metal catalyst as well as preparation method and application thereof | |
| CN106040239A (en) | Controllable high-dispersion nano simple-substance metal/carbon composite material preparation method and electrical catalytic application thereof | |
| CN106975473A (en) | The supported materials catalyst of network structure | |
| CN107362823B (en) | Catalytic material for degrading indoor formaldehyde at room temperature and preparation method thereof | |
| CN113275034B (en) | Hierarchical pore molecular sieve catalyst for eliminating VOCs and preparation method thereof | |
| CN106890642B (en) | Catalyst for treating benzene substances in industrial waste gas and preparation method thereof | |
| CN106902814A (en) | One kind catalysis burning order mesoporous integral catalyzer of rare earth base and preparation method thereof | |
| CN108479762A (en) | A kind of manganese oxide catalyst and its preparation method and application | |
| CN106732581A (en) | A kind of Ru/CeTiO for low-temperature SCR reactionXThe preparation method of catalyst | |
| CN105771967A (en) | Metal oxide-vanadate/attapulgite catalyst | |
| CN107497442A (en) | A kind of method for preparing efficient rare-earth element supported copper aluminium-based catalyst and its prepared catalyst | |
| CN108940306A (en) | A kind of ordered porous PtCu/CeO2Catalyst and its preparation method and application | |
| CN107008223B (en) | The adsorbent and preparation method thereof of low-load amount high dispersive type benzene refining desulfurization | |
| CN111939896A (en) | Liquid catalyst for catalyzing ozonolysis at normal temperature and preparation method and application thereof | |
| CN111111642B (en) | Denitration catalyst and preparation method and application thereof | |
| CN102000600A (en) | Integral normal-temperature micro nitrogen oxide purification material and preparation method thereof | |
| CN113398920B (en) | Ultra-long cerium dioxide nanorod-loaded manganese oxide low-temperature denitration catalyst and preparation method thereof | |
| CN110314685A (en) | A kind of catalyst with core-casing structure preparation method for toluene low-temperature catalytic oxidation | |
| CN109985661A (en) | Catalyst and preparation method based on purification of volatile organic pollutant | |
| CN109331605A (en) | A kind of lignin-base removes air formaldehyde material and preparation method | |
| CN108786802A (en) | A kind of room temperature purify the air of a room pollutant method for preparing catalyst and its application | |
| CN108554454A (en) | A kind of metal-organic framework materials being fixed with Platinum Nanoparticles prepare purification process and its application | |
| CN108031449A (en) | A kind of improved material for air purification and its application | |
| CN110252317B (en) | Ce-Fe-based catalyst for efficiently removing nitrogen oxides at low temperature | |
| CN109289906B (en) | Ammonia gas purification catalyst and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
|
| RJ01 | Rejection of invention patent application after publication |