CN109759146A - It is a kind of except preparation method of formaldehyde patch and products thereof and application - Google Patents
It is a kind of except preparation method of formaldehyde patch and products thereof and application Download PDFInfo
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- CN109759146A CN109759146A CN201811620132.9A CN201811620132A CN109759146A CN 109759146 A CN109759146 A CN 109759146A CN 201811620132 A CN201811620132 A CN 201811620132A CN 109759146 A CN109759146 A CN 109759146A
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Abstract
The invention discloses a kind of except preparation method of formaldehyde patch and products thereof and application, using in-situ oxidation reduction method, in deionized water by manganese sulfate solution, isopropanol is added, stirring, nonwoven carrier is mixed in and continues to heat after mixing evenly in above-mentioned solution, KMnO is then added4Solution, is added dropwise hydrogen peroxide, and carrier surface in-situ oxidation reduction reaction obtains doping MnO2The non-woven fabrics of modification.PARA FORMALDEHYDE PRILLS(91,95) has good clean-up effect under manganese oxide patch material room temperature prepared by the present invention, formaldehyde removal rate is up to 98% or more, complexing, condensation, organic reaction can also occur with most of organic compounds such as formaldehyde, benzene homologues, ammonia, TVOC, harmful substance in efficient-decomposition air, high-efficient and lasting, stability are good, production cost is low.
Description
Technical field
The present invention relates to a kind of except preparation method of formaldehyde patch and products thereof and application, belongs to catalysis material technology neck
Domain.
Background technique
In recent years, air pollution problem inside rooms cause the highest attention of people with the enhancing of people's health consciousness.
Formaldehyde is typical indoor air pollutants, is mainly discharged by building materials of house fitting-up and furniture material, and deenergized period is up to the several years even
Many decades, the long-term physical and mental health for influencing people.If pregnant woman is chronically at the interior of formaldehyde, it is abnormal to may result in fetus
Shape, in addition it is dead.According to the regulation of China Indoor Air Quality standards GB/T18883-2002, the concentration of formaldehyde under standard environment
It must not exceed 0.10mg/m3.According to investigations, China's overwhelming majority home interior air formaldehyde concentration over-standard, it is especially newly-decorated
The problem of generally existing formaldehyde in house severely exceeds.Therefore, the purification elimination of indoor formaldehyde becomes very urgent.
Currently, purifying indoor formaldehyde technology mainly has photocatalyst (TiO2) photocatalysis is except formaldehyde, the absorption of active carbon/molecular sieve
Except formaldehyde, catalyst oxidation are except formaldehyde etc..Formaldehyde complete oxidation can be CO by catalytic oxidation2And H2O will not be generated secondary
Pollution is that have important practical application value except the most thorough method of formaldehyde.CN 1795970A,CN 101497042A,CN
101380574A and CN 104174395A is the carried noble metal using metal oxide or metal composite oxide as carrier
Pt, Pd, Au, Ag isoreactivity component are finally prepared purifying formaldehyde and eliminate catalyst, since noble metal component dosage is higher,
Therefore easily occurs the problem of noble metal nano particles reunion inactivation during making and using in catalyst, in addition, preparing
In the process since metal salt dispersion is uneven, it is difficult to form solid solution, not strong with the binding force of noble metal active component, reaction is lived
Property is not high.
MnO2It is the relatively broad multi-functional mistake of research due to having many advantages, such as that environment is friendly, resourceful, cheap
Cross metal oxide.Wherein, MnO2Catalytic activity generally acknowledge best, it can effectively catalyze the organic matter of degradation
Type is also most.The present invention is using non-woven fabrics as carrier, using in-situ compositing, with hydrogen peroxide oxidation potassium permanganate preparation one
The manganese bioxide material of high activity is planted, the gas generated in reaction process can be such that manganese oxide material ties with duct abundant
The Strong oxdiative ability of structure, hydrogen peroxide can bring more oxidation activity positions for manganese oxide.Oxidation manganese material prepared by the present invention
There can be good clean-up effect by PARA FORMALDEHYDE PRILLS(91,95) at normal temperature, formaldehyde removal rate reaches 90% or more.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of preparation methods except formaldehyde patch.
Another object of the present invention is: provide a kind of preparation of the above method except formaldehyde patch products.
Another object of the present invention is to: a kind of application of the said goods is provided.
The object of the invention is realized by following proposal: in-situ oxidation reduction method is used, in deionized water by manganese sulfate solution,
Isopropanol is added, nonwoven carrier is mixed in and continues to heat after mixing evenly in above-mentioned solution, KMnO is then added by stirring4
Solution, is added dropwise hydrogen peroxide, and carrier surface in-situ oxidation reduction reaction obtains doping MnO2The non-woven fabrics of modification.
Specific step is as follows by the present invention: a kind of preparation method except formaldehyde patch includes the following steps:
Step 1: isopropanol is added in manganate, and non-woven fabrics is added, heats after stirring, obtained solution A；
Step 2: potassium manganate (KMnO is pressed4): manganate molar ratio 1:1 weighs KMnO4, it is dissolved in deionized water, dioxygen is water-soluble
Liquid and step 1 acquired solution A are added simultaneously in the solution that step 2 prepares, and stop reaction after reacting 0.5-5 h；
Step 3: required product will be obtained after the washing drying of step 2 products therefrom non-woven fabrics.
Manganate is MnSO in the step 14·H2O or MnCl2·4H2O or manganese nitrate (Mn (NO3)2In described
One kind or combinations thereof.
Manganese sulfate (the MnSO of 0.5-2 mol is weighed in the step 14·H2O), 30-50mL isopropanol is added, add
Enter the non-woven fabrics of 10cm*10cm, is heated to 50-80 DEG C after stirring 60 min-180 min, obtained solution A.
Hydrogen peroxide concentration described in the step 2 is 1-10%.
The ingredient of the non-woven fabrics is polypropylene fibre, polyester fiber or viscose rayon.
The present invention provides one kind except formaldehyde patch, is prepared according to any of the above-described method.The supported catalyst
Agent is made of active component and carrier, and carrier is non-woven fabrics, and active component is Mn oxide.
The present invention provides a kind of application of support type manganese oxide catalyst except formaldehyde patch for the catalysis of room temperature formaldehyde,
Condition is to flow the gaseous mixture that formaldehyde and air are passed through in fixed bed device, and reaction pressure is normal pressure ~ 1atm, and total gas flow rate is
500 mL/min, the concentration of formaldehyde are 5.64 μ g/m3。
The gas generated in reaction process can make manganese oxide material with cellular structure abundant, the Strong oxdiative of hydrogen peroxide
Ability can bring more oxidation activity positions for manganese oxide.There is very PARA FORMALDEHYDE PRILLS(91,95) under manganese oxide patch material room temperature prepared by the present invention
Good clean-up effect, formaldehyde removal rate are up to 98% or more, can also be with most of organic compounds such as formaldehyde, benzene homologues, ammonia, TVOC
Complexing, condensation, organic reaction occur for object, the harmful substance in efficient-decomposition air, and high-efficient and lasting, stability is good, production cost
It is low.
Specific embodiment
It elaborates below to embodiments of the present invention and operating process, but protection scope of the present invention is not limited to down
State embodiment:
Embodiment 1
A kind of preparation method except formaldehyde patch, includes the following steps:
(1) MnSO4H2O for weighing 1 mol is dissolved in 10mL deionized water, and 40mL isopropanol is then added, is made molten
The polypropylene fiber nonwoven cloth of 4 10cm*10cm is added in liquid A, is heated to 65 DEG C after stirring 120 min, for use；
(2) hydrogen peroxide of 25 mL 35% is added in 100 mL deionized waters, hydrogen peroxide solution is prepared；
(3) KMnO4 for weighing 1mol is dissolved in 10 mL deionized waters, and step is added simultaneously with the hydrogen peroxide solution of step 2
In rapid three solution prepared, stop reaction after reacting 2 h；
(4) the support type manganese oxide catalyst for being used for the catalysis of room temperature formaldehyde will be obtained after the washing drying of products therefrom non-woven fabrics.
Carry out the performance test of room temperature purifying formaldehyde to the manganese dioxide patch 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.Take 2 10cm*10cm except formaldehyde patch is at 25 DEG C, the purification maximum purification efficiency of formaldehyde is 94%.
Embodiment 2
A kind of preparation method except formaldehyde patch, includes the following steps:
(1) MnCl24H2O for weighing 1 mol is dissolved in 10mL deionized water, and 40mL isopropanol is then added, is made molten
The polyester fiber non-woven fabric of 4 10cm*10cm is added in liquid A, is heated to 65 DEG C after stirring 120 min, for use；
(2) hydrogen peroxide of 10 mL 35% is added in 100 mL deionized waters, hydrogen peroxide solution is prepared；
(3) KMnO4 for weighing 1mmol is dissolved in 10 mL deionized waters, and step is added simultaneously with the hydrogen peroxide solution of step 2
In rapid three solution prepared, stop reaction after reacting 4 h；
(4) the support type manganese oxide catalyst for being used for the catalysis of room temperature formaldehyde will be obtained after the washing drying of products therefrom non-woven fabrics.
Carry out the performance test of room temperature purifying formaldehyde to the manganese dioxide patch 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.Take 2 10cm*10cm except formaldehyde patch is at 25 DEG C, the purification maximum purification efficiency of formaldehyde is 86%.
Embodiment 3
A kind of preparation method except formaldehyde patch, includes the following steps:
(1) MnCl24H2O for weighing 1 mol is dissolved in 10mL deionized water, and 40mL isopropanol is then added, is made molten
The viscose fiber non-woven fabrics of 4 10cm*10cm is added in liquid A, is heated to 65 DEG C after stirring 120 min, for use；
(2) hydrogen peroxide of 25 mL 35% is added in 100 mL deionized waters, hydrogen peroxide solution is prepared；
(3) KMnO4 for weighing 1mmol is dissolved in 10 mL deionized waters, and step is added simultaneously with the hydrogen peroxide solution of step 2
In rapid three solution prepared, stop reaction after reacting 4 h；
(4) the support type manganese oxide catalyst for being used for the catalysis of room temperature formaldehyde will be obtained after the washing drying of products therefrom non-woven fabrics.
Carry out the performance test of room temperature purifying formaldehyde to the manganese dioxide patch 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.Take 2 10cm*10cm except formaldehyde patch is at 25 DEG C, the purification maximum purification efficiency of formaldehyde is 98%.
Embodiment 4
A kind of preparation method except formaldehyde patch, includes the following steps:
(1) MnCl of 1 mmol is weighed24H2O is dissolved in 10mL deionized water, and 40mL isopropanol is then added, and is made
The viscose fiber non-woven fabrics of 4 10cm*10cm is added in solution A, is heated to 65 DEG C after stirring 120 min, for use；
(2) hydrogen peroxide of 25 mL 35% is added in 100 mL deionized waters, hydrogen peroxide solution is prepared；
(3) KMnO4 for weighing 1mmol is dissolved in 10 mL deionized waters, and step is added simultaneously with the hydrogen peroxide solution of step 2
In rapid three solution prepared, stop reaction after reacting 4 h；
(4) the support type manganese oxide catalyst for being used for the catalysis of room temperature formaldehyde will be obtained after the washing drying of products therefrom non-woven fabrics.
Carry out the performance test of room temperature purifying formaldehyde to the manganese dioxide patch 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.Take 2 10cm*10cm except formaldehyde patch is at 25 DEG C, the purification maximum purification efficiency of formaldehyde is 82%.
Embodiment 5
A kind of preparation method except formaldehyde patch, includes the following steps:
(1) Mn (NO3) 2 for weighing 2 mmol is dissolved in 10mL deionized water, and 50mL isopropanol, obtained solution is then added
The polyester fiber non-woven fabric of 4 10cm*10cm is added in A, is heated to 65 DEG C after stirring 120 min, for use；
(2) hydrogen peroxide of 10 mL 35% is added in 100 mL deionized waters, hydrogen peroxide solution is prepared；
(3) KMnO4 for weighing 2mmol is dissolved in 10 mL deionized waters, and step is added simultaneously with the hydrogen peroxide solution of step 2
In rapid three solution prepared, stop reaction after reacting 4 h；
(4) the support type manganese oxide catalyst for being used for the catalysis of room temperature formaldehyde will be obtained after the washing drying of products therefrom non-woven fabrics.
Carry out the performance test of room temperature purifying formaldehyde to the manganese dioxide patch 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.Take 2 10cm*10cm except formaldehyde patch is at 25 DEG C, the purification maximum purification efficiency of formaldehyde is 89%.
Claims (7)
1. a kind of preparation method except formaldehyde patch, which comprises the steps of:
Step 1: 30-50mL isopropanol is added in 0.5-2 mol manganate, and non-woven fabrics is added, heats after stirring, obtained solution A；
Step 2: potassium manganate (KMnO is pressed4): manganate molar ratio 1:1 weighs KMnO4, it is dissolved in deionized water, dioxygen is water-soluble
Liquid and step 1 acquired solution A are added simultaneously in the solution that step 2 prepares, and stop reaction after reacting 0.5-5 h；
Step 3: required product will be obtained after the washing drying of step 2 products therefrom non-woven fabrics.
2. removing the preparation method of formaldehyde patch according to claim 1, which is characterized in that manganate is in the step 1
MnSO4·H2O or MnCl2·4H2O or manganese nitrate (Mn (NO3)2One of or combinations thereof.
3. the preparation method according to claim 1 or claim 2 except formaldehyde patch, which is characterized in that weighed in the step 1
Manganese sulfate (the MnSO of 0.5-2 mol4·H2O), 30-50mL isopropanol is added, the non-woven fabrics of 10cm*10cm is added, stirs
50-80 DEG C is heated to after 60 min-180 min, obtained solution A.
4. removing the preparation method of formaldehyde patch according to claim 1, which is characterized in that hydrogen peroxide described in the step 2
Concentration is 1-10%.
5. the preparation method for removing formaldehyde patch according to claim 1, which is characterized in that the ingredient of the non-woven fabrics is poly-
Tacryl, polyester fiber or viscose rayon.
6. one kind removes formaldehyde patch, it is characterised in that -5 any methods are prepared according to claim 1.
7. a kind of according to claim 6 except formaldehyde patch is used for the support type manganese oxide catalyst of room temperature formaldehyde catalysis
Using condition is to flow the gaseous mixture for being passed through formaldehyde and air in fixed bed device, and reaction pressure is normal pressure ~ 1atm, and gas is total
Flow is 500 mL/min, and the concentration of formaldehyde is 5.64 μ g/m3。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620132.9A CN109759146A (en) | 2018-12-28 | 2018-12-28 | It is a kind of except preparation method of formaldehyde patch and products thereof and application |
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| CN201811620132.9A CN109759146A (en) | 2018-12-28 | 2018-12-28 | It is a kind of except preparation method of formaldehyde patch and products thereof and application |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284077A (en) * | 2010-06-18 | 2011-12-21 | 上海牛翼新能源科技有限公司 | Multifunctional high-efficiency air purifier for indoor (vehicle) environment |
| CN103506111A (en) * | 2012-06-26 | 2014-01-15 | 罗平 | Method for preparing formaldehyde and ozone removal catalyst at room temperature |
-
2018
- 2018-12-28 CN CN201811620132.9A patent/CN109759146A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284077A (en) * | 2010-06-18 | 2011-12-21 | 上海牛翼新能源科技有限公司 | Multifunctional high-efficiency air purifier for indoor (vehicle) environment |
| CN103506111A (en) * | 2012-06-26 | 2014-01-15 | 罗平 | Method for preparing formaldehyde and ozone removal catalyst at room temperature |
Non-Patent Citations (1)
| Title |
|---|
| JINLONG WANG等: "In situ synthesis of manganese oxides on polyester fiber forformaldehyde decomposition at room temperature", 《APPLIED SURFACE SCIENCE》 * |
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