CN112604681A - Formaldehyde degradation material and preparation method and application thereof - Google Patents
Formaldehyde degradation material and preparation method and application thereof Download PDFInfo
- Publication number
- CN112604681A CN112604681A CN202011467378.4A CN202011467378A CN112604681A CN 112604681 A CN112604681 A CN 112604681A CN 202011467378 A CN202011467378 A CN 202011467378A CN 112604681 A CN112604681 A CN 112604681A
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- China
- Prior art keywords
- formaldehyde
- solution
- permanganate
- manganese oxide
- degradation material
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000000463 material Substances 0.000 title claims abstract description 26
- 230000015556 catabolic process Effects 0.000 title claims abstract description 22
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 5
- 239000002238 carbon nanotube film Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 16
- 229920002472 Starch Polymers 0.000 claims description 10
- 230000000593 degrading effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 235000019698 starch Nutrition 0.000 claims description 10
- 239000008107 starch Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000012286 potassium permanganate Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 4
- 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 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 2
- 239000012855 volatile organic compound Substances 0.000 claims 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract description 14
- 230000008929 regeneration Effects 0.000 abstract description 4
- 238000011069 regeneration method Methods 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000002096 quantum dot Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000007665 chronic toxicity Effects 0.000 description 1
- 231100000160 chronic toxicity Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
-
- B01J35/61—
Abstract
A formaldehyde degradation material and a preparation method and application thereof comprise manganese oxide quantum dots and a carbon nano tube film, wherein the size of the manganese oxide quantum dots is 0.1-10nm, and the manganese oxide quantum dots are uniformly embedded on the surface of the carbon nano tube. The invention effectively solves the problem of powder falling of manganese oxide. Has the characteristics of low preparation cost, convenient use, safe use and easy regeneration.
Description
Technical Field
The invention relates to the technical field of chemical catalytic degradation, in particular to a formaldehyde degradation material and a preparation method and application thereof.
Background
Formaldehyde is a major pollutant in indoor air, is irritant, has acute and chronic toxicity, and has a carcinogenic risk when inhaled for a long time. Common formaldehyde removal means include physical adsorption, low-temperature plasma degradation technology, catalytic combustion, plant absorption, photocatalysis and the like. However, the above methods are limited by adsorption capacity, high energy consumption, high temperature, low efficiency and by-products, and formaldehyde management remains a challenging problem. The invention mainly aims at degrading low-concentration formaldehyde in indoor air.
Manganese oxide has catalytic activity to completely convert formaldehyde into water and carbon dioxide. However, the manganese oxide still has the problems of low catalytic activity at room temperature, loose link with a matrix, easy powder falling and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a formaldehyde degradation material and a preparation method and application thereof, and effectively solves the problem of powder falling of manganese oxide.
In order to achieve the purpose, the invention adopts the technical scheme that:
a formaldehyde degradation material comprises manganese oxide quantum dots and a carbon nano tube film, wherein the size of the manganese oxide quantum dots is 0.1-10nm, and the manganese oxide quantum dots are uniformly embedded on the surface of the carbon nano tube.
A preparation method of formaldehyde degradation material comprises the following steps;
a. dissolving a certain amount of starch in deionized water, and uniformly stirring to obtain a solution A;
b. adding a certain amount of permanganate into the solution A, and uniformly stirring to obtain a solution B;
c. standing the solution B at a certain temperature for a certain time to obtain a viscous liquid C;
d. filtering the viscous liquid C to form a film and drying;
e. and roasting the dried film in an inert atmosphere to obtain the formaldehyde degradation material.
In the step a, the concentration of the starch solution is 1-10g/L, and the concentration of the permanganate is 0.1-1 g/L.
The concentration of the permanganate in the step b is 0.1-1 g/L.
The permanganate in the step b is any one of potassium permanganate, sodium permanganate, ammonium permanganate and the like.
The standing time in the step c is 0.2-5h, and the temperature is 60 ℃.
The roasting temperature in the step e is 800-1000 ℃.
And the roasting time in the step e is 0.5-5 h.
The formaldehyde degrading material has the functions of degrading VOC including formaldehyde and filtering PM particles.
The invention has the beneficial effects that:
the preparation process is simple, and the manganese oxide quantum dot embedded carbon nanotube is loaded on the base material without a binder. The preparation cost is low, and noble metals are not needed as active components.
The use is convenient, and the formaldehyde in the air can be efficiently degraded at room temperature; the wind resistance is low, and the air purifier can be used as an active purification module.
The formaldehyde is degraded into carbon dioxide and water, and secondary pollutants are not generated;
easy regeneration, when the formaldehyde degradation activity is reduced, the regeneration can be fast and simple, and no toxic and harmful secondary pollutants are generated in the regeneration process.
The manganese oxide in the invention is a nano-scale quantum dot, has very high specific surface area and abundant catalytic active sites, and the carbon nano tube has very good electron transmission capability, can ensure that the manganese oxide has rapid electron transmission capability in the process of oxidizing and degrading formaldehyde, can effectively and rapidly degrade formaldehyde pollution in indoor air, and can continuously and rapidly remove formaldehyde pollutants in indoor air at room temperature.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.2g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 1h to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at 800 ℃ for 1h to obtain the formaldehyde degradation material.
Example 2
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.5g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 1h to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at 800 ℃ for 1h to obtain the formaldehyde degradation material.
Example 3
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.5g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 1h to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at the roasting temperature of 1000 ℃ for 1h to obtain the formaldehyde degradation material.
Example 4
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.5g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 1h to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at the roasting temperature of 1000 ℃ for 5 hours to obtain the formaldehyde degradation material.
Example 5
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.5g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 0.2h to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at 800 ℃ for 0.5h to obtain the formaldehyde degradation material.
Example 6
1g of starch was weighed and dissolved in 200ml of deionized water and stirred well to obtain solution A.
0.5g of potassium permanganate is weighed into the solution A and stirred uniformly to obtain a solution B.
And standing the solution B at 60 ℃ for 5 hours to obtain viscous liquid C.
Filtering the viscous liquid C to form a film and drying.
And roasting the dried membrane in a nitrogen atmosphere at the roasting temperature of 1000 ℃ for 5 hours to obtain the formaldehyde degradation material.
Claims (9)
1. The formaldehyde degradation material is characterized by comprising manganese oxide quantum dots and a carbon nano tube film, wherein the size of the manganese oxide quantum dots is 0.1-10nm, and the manganese oxide quantum dots are uniformly embedded on the surface of the carbon nano tube.
2. A preparation method of a formaldehyde degradation material is characterized by comprising the following steps;
a. dissolving a certain amount of starch in deionized water, and uniformly stirring to obtain a solution A;
b. adding a certain amount of permanganate into the solution A, and uniformly stirring to obtain a solution B;
c. standing the solution B at a certain temperature for a certain time to obtain a viscous liquid C;
d. filtering the viscous liquid C to form a film and drying;
e. and roasting the dried film in an inert atmosphere to obtain the formaldehyde degradation material.
3. The method for preparing the formaldehyde degrading material as claimed in claim 1, wherein the concentration of the starch solution in the step a is 1-10g/L, and the concentration of the permanganate is 0.1-1 g/L.
4. The method for preparing the formaldehyde degrading material as claimed in claim 1, wherein the concentration of the permanganate in the step b is 0.1-1 g/L.
5. The method for preparing a formaldehyde degrading material according to claim 1, wherein the permanganate in step b is any one of potassium permanganate, sodium permanganate, ammonium permanganate, etc.
6. The method for preparing the formaldehyde degradation material as claimed in claim 1, wherein the standing time in the step c is 0.2-5h, and the temperature is 60 ℃.
7. The method as claimed in claim 1, wherein the calcination temperature in step e is 800-1000 ℃.
8. The method for preparing the formaldehyde degradation material as claimed in claim 1, wherein the calcination time in step e is 0.5-5 h.
9. The formaldehyde degrading material according to claim 1 to 8, wherein the formaldehyde degrading material has a function of degrading VOCs including formaldehyde and filtering PM particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467378.4A CN112604681A (en) | 2020-12-14 | 2020-12-14 | Formaldehyde degradation material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467378.4A CN112604681A (en) | 2020-12-14 | 2020-12-14 | Formaldehyde degradation material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112604681A true CN112604681A (en) | 2021-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011467378.4A Pending CN112604681A (en) | 2020-12-14 | 2020-12-14 | Formaldehyde degradation material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112604681A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397490A (en) * | 2001-12-28 | 2003-02-19 | 南京师范大学 | Carbon atom wire and process for preparing carbon nanotube and carbon atom wire by pyrolyzing solid-state carbon source |
| CN107032326A (en) * | 2017-04-19 | 2017-08-11 | 广东工业大学 | A kind of method that solid catalysis prepares spiral carbon nano pipe |
| CN108421545A (en) * | 2018-03-08 | 2018-08-21 | 清华大学 | Manganese dioxide composite material and its preparation method and application |
| CN108906034A (en) * | 2018-06-27 | 2018-11-30 | 宁波智通环保科技有限公司 | A kind of catalysis material and preparation method thereof of room-temperature decomposition formaldehyde |
| CN109926044A (en) * | 2019-02-14 | 2019-06-25 | 北京氦舶科技有限责任公司 | A kind of manganese oxide-active carbon composite catalyst and its preparation method and application |
| US20190193055A1 (en) * | 2017-12-22 | 2019-06-27 | Lumileds Holding B.V. | Catalyst for catalyzing formaldehyde oxidation and the preparation and use of the same |
-
2020
- 2020-12-14 CN CN202011467378.4A patent/CN112604681A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397490A (en) * | 2001-12-28 | 2003-02-19 | 南京师范大学 | Carbon atom wire and process for preparing carbon nanotube and carbon atom wire by pyrolyzing solid-state carbon source |
| CN107032326A (en) * | 2017-04-19 | 2017-08-11 | 广东工业大学 | A kind of method that solid catalysis prepares spiral carbon nano pipe |
| US20190193055A1 (en) * | 2017-12-22 | 2019-06-27 | Lumileds Holding B.V. | Catalyst for catalyzing formaldehyde oxidation and the preparation and use of the same |
| CN108421545A (en) * | 2018-03-08 | 2018-08-21 | 清华大学 | Manganese dioxide composite material and its preparation method and application |
| CN108906034A (en) * | 2018-06-27 | 2018-11-30 | 宁波智通环保科技有限公司 | A kind of catalysis material and preparation method thereof of room-temperature decomposition formaldehyde |
| CN109926044A (en) * | 2019-02-14 | 2019-06-25 | 北京氦舶科技有限责任公司 | A kind of manganese oxide-active carbon composite catalyst and its preparation method and application |
Non-Patent Citations (2)
| Title |
|---|
| YUNLEI FU ET AL.: "Spindle Mn2O3/carbon hybrid with homogeneous structure as advanced electrodes for supercapacitors", 《J NANOPART RES》 * |
| 黄慧娟等: "锰氧化物催化分解室内甲醛的研究进展", 《材料导报》 * |
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