CN107697952A - For removing preparation method of manganese bioxide material of low concentration formaldehyde and products thereof and application in air - Google Patents
For removing preparation method of manganese bioxide material of low concentration formaldehyde and products thereof and application in air Download PDFInfo
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- CN107697952A CN107697952A CN201711022352.7A CN201711022352A CN107697952A CN 107697952 A CN107697952 A CN 107697952A CN 201711022352 A CN201711022352 A CN 201711022352A CN 107697952 A CN107697952 A CN 107697952A
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- manganese
- formaldehyde
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- concentration formaldehyde
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
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- 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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- 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
- B01D53/81—Solid phase processes
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- 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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- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
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Abstract
It is used to remove manganese bioxide material of low concentration formaldehyde and its preparation method and application in air the present invention relates to a kind of.Hydrogen peroxide solution and certain density alkali lye are added drop-wise in manganese salt solution simultaneously, continues to stir 2 24h after generation precipitation, is placed in after filtering and washing in 50 120 DEG C of baking ovens and dries 12 24h.Aoxidize the manganese dioxide that high activity is prepared in manganese salt in the basic conditions by hydrogen peroxide, can effectively remove low concentration formaldehyde gas in air, clearance reaches 94%, and formaldehyde gas is not easy to be desorbed from material surface, avoids secondary pollution.Technology of preparing is simple, and cost is low, is easy to mass produce, and is expected to turn into conventional purifying formaldehyde material.
Description
Technical field
It is used to remove the preparation method of the manganese bioxide material of low concentration formaldehyde and its production in air the present invention relates to a kind of
Product and application, belong to air purification field.
Background technology
According to《Indoor Air Quality standards（GB/T 18803-2002）》Regulation, indoor formaldehyde concentration should be less than
0.1mg/m3, the formaldehyde of human body Long Term Contact low dosage, chronic respiratory disease can be caused, resistance be reduced, especially to pregnant woman
It is bigger with the harm of children.And the Form aldehyde release cycle of indoor hardware fitting is up to 3-15, therefore, the purification of formaldehyde is to ensure
The key of indoor cleaned air.
The usual charcoal absorption pernicious gas of indoor air purification, but absorption of the activated carbon for formaldehyde is mainly by physics
Absorption, when by changes in environmental conditions such as temperature, adsorbed formaldehyde then can be desorbed out, and secondary pollution is caused to environment.
Chinese invention patent CN105013322B discloses a kind of method that manganese oxide catalyst is used for catalysis oxidation formaldehyde, with sulfuric acid
Manganese is reducing agent, and potassium permanganate or ammonium sulfate are oxidant, are prepared using hydro-thermal method, and the material PARA FORMALDEHYDE PRILLS(91,95) has certain net
Change effect, but the formaldehyde conversion under 50 degree is 37%, clean-up effect is relatively poor.The present invention uses hydrogen peroxide oxidation divalence
Manganese salt prepares a kind of manganese bioxide material of high activity, and in course of reaction caused gas can make manganese oxide material with rich
Rich pore passage structure, the Strong oxdiative ability of hydrogen peroxide can be that manganese oxide brings more oxidation activity positions.Prepared by the present invention
Oxidation manganese material can have good clean-up effect by PARA FORMALDEHYDE PRILLS(91,95) at normal temperatures, and formaldehyde clearance reaches more than 90%.
The content of the invention
It is a kind of for removing sky present invention aims at providing the invention aims to overcome the deficiencies in the prior art
The preparation method of the manganese bioxide material of low concentration formaldehyde in gas.
Another object of the present invention is：Product made from the above method is provided.
A further object of the present invention is：The application of product should be made by providing the above method.
A kind of preparation method for being used to remove the manganese bioxide material of low concentration formaldehyde in air, according to following step：
The first step, a certain amount of manganese salt is dissolved into deionized water, the concentration being prepared is 0.1-2M manganese salt solutions；
Second step, a certain amount of hydrogen peroxide is added in deionized water, stirred, it is water-soluble for 1-10% dioxygens to obtain concentration
Liquid；
3rd step, hydrogen peroxide solution and concentration are added drop-wise in manganese salt solution simultaneously for 1-5M alkali lye, continued after generation precipitation
2-24h is stirred, is placed in after filtering and washing in 50-120 DEG C of baking oven and dries 12-24h.
Wherein, described manganese salt is one kind in manganese chloride, manganese nitrate, manganese nitrate.
Alkali is one kind in concentration potassium hydroxide, sodium hydroxide, ammoniacal liquor, sodium carbonate, ammonium hydrogen carbonate in described alkali lye.
The present invention provides a kind of manganese bioxide material for being used to remove low concentration formaldehyde in air, according to method described above
It is prepared.
The present invention provides the application that a kind of manganese bioxide material removes low concentration formaldehyde in air.
The present invention has advantages below：Can high-efficient purification low concentration at normal temperatures formaldehyde gas, formaldehyde clearance reaches
To more than 94%.Preparation method is simple, and cost is low, is easy to mass produce.
Embodiment
Following instance is used for the more detailed description present invention, but the present invention is not limited thereto.
Embodiment 1
By 19.8g MnCl2•4H2O is dissolved into 100mL deionized waters, and manganese salt solution is prepared.By the double of 25 mL 35%
Oxygen water is added in 100 mL deionized waters, and hydrogen peroxide solution is prepared.Then by hydrogen peroxide solution and 5M 100mL hydrogen-oxygens
Change potassium solution to be added drop-wise in manganese salt solution respectively, stir 4h, be placed in after filtering and washing in 50 DEG C of baking ovens and dry 24h, it is final to prepare
Obtain manganese dioxide powder.
Room temperature purifying formaldehyde performance test is carried out to the manganese dioxide powder of above-mentioned preparation：Afterflow, which is moved in fixed bed device, leads to
Enter the gaseous mixture of formaldehyde and air, reaction pressure is normal pressure ~ 1atm, and total gas flow rate is 500 mL/min, and the concentration of formaldehyde is
5.64 μg/m3.Weigh manganese dioxide（20-40 mesh）Quality be 0.20 g.At 25 DEG C, the maximum purification effect of purification of formaldehyde
Rate is 94%.
Embodiment 2
By 19.8g MnCl2•4H2O is dissolved into 100mL deionized waters, and manganese salt solution is prepared.By the double of 25 mL 35%
Oxygen water is added in 100 mL deionized waters, and hydrogen peroxide solution is prepared.Then by hydrogen peroxide solution and 1M 100mL hydrogen-oxygens
Change potassium solution to be added drop-wise in manganese salt solution respectively, stir 4h, be placed in after filtering and washing in 50 DEG C of baking ovens and dry 24h, it is final to prepare
Obtain manganese dioxide powder.
Room temperature purifying formaldehyde performance test is carried out to the manganese dioxide powder of above-mentioned preparation：Afterflow, which is moved in fixed bed device, leads to
Enter the gaseous mixture of formaldehyde and air, reaction pressure is normal pressure ~ 1atm, and total gas flow rate is 500 mL/min, and the concentration of formaldehyde is
5.58 μg/m3.Weigh manganese dioxide（20-40 mesh）Quality be 0.20 g.At 25 DEG C, the maximum purification effect of purification of formaldehyde
Rate is 81%.
Embodiment 3
By 19.8g MnCl2•4H2O is dissolved into 100mL deionized waters, and manganese salt solution is prepared.By the double of 10 mL 35%
Oxygen water is added in 100 mL deionized waters, and hydrogen peroxide solution is prepared.Then by hydrogen peroxide solution and 5M 100mL hydrogen-oxygens
Change potassium solution to be added drop-wise in manganese salt solution respectively, stir 4h, be placed in after filtering and washing in 50 DEG C of baking ovens and dry 24h, it is final to prepare
Obtain manganese dioxide powder.
Room temperature purifying formaldehyde performance test is carried out to the manganese dioxide powder of above-mentioned preparation：Afterflow, which is moved in fixed bed device, leads to
Enter the gaseous mixture of formaldehyde and air, reaction pressure is normal pressure ~ 1atm, and total gas flow rate is 500 mL/min, and the concentration of formaldehyde is
5.70 μg/m3.Weigh manganese dioxide（20-40 mesh）Quality be 0.20 g.At 25 DEG C, the maximum purification effect of purification of formaldehyde
Rate is 74%.
Embodiment 4
By 19.8g MnCl2•4H2O is dissolved into 100mL deionized waters, and manganese salt solution is prepared.By the double of 10 mL 35%
Oxygen water is added in 100 mL deionized waters, and hydrogen peroxide solution is prepared.Then by hydrogen peroxide solution and 1M 100mL hydrogen-oxygens
Change potassium solution to be added drop-wise in manganese salt solution respectively, stir 4h, be placed in after filtering and washing in 50 DEG C of baking ovens and dry 24h, it is final to prepare
Obtain manganese dioxide powder.
Room temperature purifying formaldehyde performance test is carried out to the manganese dioxide powder of above-mentioned preparation：Afterflow, which is moved in fixed bed device, leads to
Enter the gaseous mixture of formaldehyde and air, reaction pressure is normal pressure ~ 1atm, and total gas flow rate is 500 mL/min, and the concentration of formaldehyde is
5.70 μg/m3.Weigh manganese dioxide（20-40 mesh）Quality be 0.20 g.At 25 DEG C, the maximum purification effect of purification of formaldehyde
Rate is 54%.
Claims (5)
1. a kind of preparation method for being used to remove the manganese bioxide material of low concentration formaldehyde in air, it is characterised in that step is such as
Under：
The first step, manganese salt is dissolved into deionized water, the manganese salt solution that concentration is 0.1-2M is prepared；
Second step, a certain amount of hydrogen peroxide is added in deionized water, stirred, it is water-soluble for 1-10% dioxygens to obtain concentration
Liquid；
3rd step, hydrogen peroxide solution and concentration are added drop-wise in manganese salt solution simultaneously for 1-5M alkali lye, continued after generation precipitation
2-24h is stirred, is placed in after filtering and washing in 50-120 DEG C of baking oven and dries 12-24h.
2. being used for the preparation method for removing the manganese bioxide material of low concentration formaldehyde in air according to claim 1, it is special
Sign is that described manganese salt is one kind in manganese chloride, manganese nitrate, manganese nitrate.
3. being used for the preparation method for removing the manganese bioxide material of low concentration formaldehyde in air according to claim 1, it is special
Sign is that the alkali in described alkali lye is one kind in potassium hydroxide, sodium hydroxide, ammoniacal liquor, sodium carbonate, ammonium hydrogen carbonate.
4. a kind of manganese bioxide material for being used to remove low concentration formaldehyde in air, it is characterised in that according to claim 1-3 institutes
The method of stating is prepared.
5. manganese bioxide material removes the application of low concentration formaldehyde in air according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022352.7A CN107697952A (en) | 2017-10-27 | 2017-10-27 | For removing preparation method of manganese bioxide material of low concentration formaldehyde and products thereof and application in air |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711022352.7A CN107697952A (en) | 2017-10-27 | 2017-10-27 | For removing preparation method of manganese bioxide material of low concentration formaldehyde and products thereof and application in air |
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| CN107697952A true CN107697952A (en) | 2018-02-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090622A (en) * | 2019-05-21 | 2019-08-06 | 南京林业大学 | A kind of preparation method of formaldehyde adsorption active carbon |
| CN110482609A (en) * | 2019-08-05 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | A kind of big table specific area ε-MnO of high-purity2Hydrothermal synthesis method |
| CN110563045A (en) * | 2019-08-29 | 2019-12-13 | 陈璞 | preparation method and application of manganese dioxide electrode |
| CN110655113A (en) * | 2019-09-29 | 2020-01-07 | 南昌大学 | Na-doped MnO2Preparation method of electrode material |
| CN111185153A (en) * | 2020-01-20 | 2020-05-22 | 广州星帮尼环保科技有限公司 | MnO2Nanosheet catalytic material and preparation method and application thereof |
| CN113694918A (en) * | 2021-08-27 | 2021-11-26 | 珠海格力电器股份有限公司 | Manganese oxide catalyst catalyzed by formaldehyde and preparation method thereof |
| CN114318578A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Antibacterial formaldehyde-removing manganese dioxide/polyurethane composite fiber and preparation method thereof |
| CN114318673A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Antibacterial formaldehyde-removing degradable melt-blown fabric and preparation method thereof |
| CN114308016A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Manganese dioxide/tourmaline composite catalyst for room-temperature antibiosis and formaldehyde removal and preparation method thereof |
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| CN101874964A (en) * | 2009-12-11 | 2010-11-03 | 北京科技大学 | Low temperature storage and reduction method for purifying oxynitrides |
| CN103172119A (en) * | 2013-04-17 | 2013-06-26 | 湖南化工研究院 | Preparation method of layered chemical manganese dioxide |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090622A (en) * | 2019-05-21 | 2019-08-06 | 南京林业大学 | A kind of preparation method of formaldehyde adsorption active carbon |
| CN110482609A (en) * | 2019-08-05 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | A kind of big table specific area ε-MnO of high-purity2Hydrothermal synthesis method |
| CN110482609B (en) * | 2019-08-05 | 2022-03-15 | 广东美的白色家电技术创新中心有限公司 | High-purity epsilon-MnO with large surface specific area2Hydrothermal synthesis method |
| CN110563045A (en) * | 2019-08-29 | 2019-12-13 | 陈璞 | preparation method and application of manganese dioxide electrode |
| CN110655113A (en) * | 2019-09-29 | 2020-01-07 | 南昌大学 | Na-doped MnO2Preparation method of electrode material |
| CN111185153A (en) * | 2020-01-20 | 2020-05-22 | 广州星帮尼环保科技有限公司 | MnO2Nanosheet catalytic material and preparation method and application thereof |
| CN114318578A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Antibacterial formaldehyde-removing manganese dioxide/polyurethane composite fiber and preparation method thereof |
| CN114318673A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Antibacterial formaldehyde-removing degradable melt-blown fabric and preparation method thereof |
| CN114308016A (en) * | 2020-10-26 | 2022-04-12 | 广东邦固薄膜涂料创新研究院有限公司 | Manganese dioxide/tourmaline composite catalyst for room-temperature antibiosis and formaldehyde removal and preparation method thereof |
| CN113694918A (en) * | 2021-08-27 | 2021-11-26 | 珠海格力电器股份有限公司 | Manganese oxide catalyst catalyzed by formaldehyde and preparation method thereof |
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Application publication date: 20180216 |