CN108187688A - It is a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation - Google Patents
It is a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation Download PDFInfo
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Abstract
It can belong to air purification and field of catalyst preparation at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation the invention discloses a kind of.The present invention is using one or more of potassium hydroxide, potassium carbonate, ammonium carbonate, ammonium hydroxide, natrium carbonicum calcinatum and sodium hydroxide as precipitating reagent, on the basis of the base metals such as manganese, aluminium, iron, zirconium, cobalt, magnesium, catalyst is optimized with rare earth elements such as lanthanum, praseodymium, cerium, gadolinium, neodymiums, is prepared using two step microwave radiation technology deposition-precipitation methods except formaldehyde catalyst.Formaldehyde can be converted into carbon dioxide and water by the catalyst prepared by the present invention at room temperature, without adding noble metal, have many advantages, such as abundant raw material, low manufacture cost, suitable for the removal of indoor formaldehyde.
Description
Technical field
The invention belongs to air purification and field of catalyst preparation, and in particular to one kind can at room temperature urge formaldehyde completely
Change catalyst of oxidation and preparation method thereof.
Background technology
Interior decoration not only brings beautiful appearance for people, also brings serious indoor pollution problem.Formaldehyde is not only
The range of pollution is very extensive, and duration is also especially long, it has also become is endangered in room the most serious and most commonly seen
A kind of substance.Being chronically in the environment of low dosage formaldehyde can allow people to suffer from the diseases such as respiratory tract, cancer, leukaemia, and people
Almost 2/3 time is in indoor environment throughout one's life, therefore, has sought a kind of method for effectively dealing carefully with formaldehyde
It is the most important thing of hot spot of concern and present indoor environment pollution.
There are many methods for administering indoor formaldehyde at this stage, but mostly has some problems to need to solve.Traditional clean room
The method of interior formaldehyde mainly have ventilation method, plant absorption method, bioanalysis, Ozonation photocatalytic method, plasma technique with
And catalytic oxidation etc..It is exactly to shift pollutant, and formaldehyde can not be allowed really to eliminate that ventilation method is practical in these technologies,
The adsorption capacity of absorption method is limited, needs periodically to be disposed it, this method is also easy to cause secondary pollution.Bioanalysis,
The methods of chemical absorption method, Ozonation and plasma technique, is also because it has that secondary pollution limits its reality
Application.And though photocatalytic method at room temperature can all decompose formaldehyde, and non-secondary pollution problem, its solar energy utilization ratio
Low, catalytic efficiency is highly susceptible to the influence of environment.Catalytic oxidation is also that one kind can all decompose formaldehyde under low temperature, and
A kind of method of non-secondary pollution problem, treatment effeciency and stability are all higher than photocatalytic method, can be for a long time to slowly releasing
The formaldehyde put is decomposed, thus becomes the method for the purifying formaldehyde for most having application prospect.
Catalytic oxidation used catalyst is divided into two kinds of precious metal based catalysts and base metal class catalyst, at present market
Upper common catalyst is mostly precious metal, and performance is although excellent, but cost is higher, limits its practical application, your non-gold
Though belong to class catalyst cost it is low, such catalyst low temperature even room temperature purifying formaldehyde effect it is unsatisfactory, obtain efficiently,
The catalyst of low cost, low temperature even room temperature removal formaldehyde is still an important challenge.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide it is a kind of can be in room temperature by your non-gold of formaldehyde complete catalysts oxidation
Metal catalyst, the catalyst overcome the defects of noble metal is of high cost, and it is even higher to reach 90% at room temperature
Formaldehyde removal effect.
It is a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation, it is characterised in that catalysagen
All using base metal salt, the catalyst is made material by following steps：
(1) manganese salt of certain mol proportion and other base metal salt are dissolved in the deionized water of 50~200ml, are configured to
Precursor solution one carries out heating stirring to it, and one temperature of precursor solution is risen to 40~80 DEG C；
(2) certain density precipitating reagent is configured, is added drop-wise in precursor solution one, one entirety PH of precursor solution is transferred to
8~11；
(3) magnetic stirring apparatus is used to stir 2~4h with 300~1000r/min after precipitating reagent is added dropwise；
(4) solution that finishes will be stirred to be placed in microwave field, adjustment microwave field temperature to 20~40 DEG C, fully react 1~
3h；
(5) sample that single step reaction is completed is taken out, the rare earth element of certain mol proportion is added into solution again, is configured to
Precursor solution two；
(6) certain density precipitating reagent is configured, is added drop-wise in precursor solution two, solution entirety PH is transferred to 8 again~
11；
(7) solution that step (6) prepares is directly placed into microwave field, adjustment microwave field temperature is to 60~80 DEG C, fully
React 1~3h；
(8) product after step (7) is reacted is washed with deionized 3~4 times after taking out, and filters；Absolute ethyl alcohol is used again
Washing 2~3 times filters；
(9) step (8) filtered sample is placed in microwave field and thoroughly dried, dried sample is placed in Muffle furnace
In, 3~6h is roasted at 200~600 DEG C, sample is ground after roasting, tabletting, sieving are purified formaldehyde catalyst.
Further, other described base metal salt are aluminium, iron, zirconium, cobalt, magnesium correspond to any one in metal salt, dilute
Earth elements are lanthanum, one kind in praseodymium, cerium, gadolinium, neodymium.
Further, the manganese salt and other base metal molar ratios are 3:0.1~10, base metal salt and rare earth element
Molar ratio be 3.1~13:0.05~10.
Further, the precipitating reagent is potassium hydroxide, potassium carbonate, ammonium carbonate, ammonium hydroxide, natrium carbonicum calcinatum and sodium hydroxide
One or more of, precipitant concentration is 0.1~5mol/L.
Three kinds of catalyst materials that the present invention uses be collectively as existing for active component, the addition of rare earth element be
Catalyst storage is improved on the basis of catalyst prepared by the first step with discharging the ability of oxygen, formaldehyde is allowed to be easier to be oxidized to
Carbon dioxide and water.
The present invention has the following advantages due to taking above technical scheme：
Catalyst is prepared using two step microwave radiation technology deposition-precipitation methods, preparation method is easy to operate, simple for process, is suitble to
It is made in high-volume；The addition of made catalyst non precious metal can reach very high clean-up effect under room temperature (25 DEG C), drop significantly
The low production cost of catalyst, is easy to industrialized production.
Specific embodiment
To be better described the present invention, typical case of the invention but non-limiting example is as follows：
Embodiment 1
By manganese, cobalt according to 3:2 theoretical molar is dissolved in 100ml deionizations than weighing corresponding metal nitrate mixing respectively
Water is configured to the precursor solution of single step reaction, and heating stirring is carried out to it, and solution temperature is risen to 70 DEG C, then will configuration
The sodium carbonate liquor of good 0.1mol/L, which is gradually added dropwise in mixed aqueous solution to solution entirety PH, becomes 11, and precipitating reagent drips
Magnetic stirring apparatus is used to stir 3h with 600r/min after finishing, the solution that stirring finishes is placed in microwave field, adjusts microwave field temperature
Degree fully reacts 1h to 40 DEG C, adds the praseodymium nitrate of certain mol proportion into solution again, and it is 3 to make catalyst entirety molar ratio:
2:1, make the sodium hydroxide solution for the 0.25mol/L being configured gradually then is added dropwise to mixed aqueous solution, by solution entirety PH
It to be transferred to 10 again, places it in 60 DEG C of microwave fields and fully reacts 2h, is washed after then the product after reaction is taken out, alcohol is washed,
It filters, filtered sample, which is placed in microwave field, thoroughly to be dried, and dried sample is placed in Muffle furnace, is roasted at 300 DEG C
The particle of 40-60 mesh is made in 6h, ground, tabletting, sieving.
Embodiment 2
By manganese, zirconium according to 3:8 theoretical molar is dissolved in 200ml deionizations than weighing corresponding metal nitrate mixing respectively
Water is configured to the precursor solution of single step reaction, and heating stirring is carried out to it, and solution temperature is risen to 65 DEG C, then will configuration
The solution of potassium carbonate of good 0.1mol/L, which is gradually added dropwise in mixed aqueous solution to solution entirety PH, becomes 11, and precipitating reagent drips
Magnetic stirring apparatus is used to stir 2h with 1000r/min after finishing, the solution that stirring finishes is placed in microwave field, adjusts microwave field temperature
Degree fully reacts 1h to 20 DEG C, adds the gadolinium nitrate of certain mol proportion into solution again, and it is 3 to make catalyst entirety molar ratio:
8:0.1, make the sodium hydroxide solution for the 0.1mol/L being configured gradually then is added dropwise to mixed aqueous solution, by solution entirety PH
It is transferred to 9 again, places it in 80 DEG C of microwave fields and fully reacts 1h, is washed after then the product after reaction is taken out, alcohol is washed, and is taken out
Filter, filtered sample, which is placed in microwave field, thoroughly to be dried, and dried sample is placed in Muffle furnace, and 3h is roasted at 400 DEG C,
The particle of 40-60 mesh is made in ground, tabletting, sieving.
Embodiment 3
By manganese, magnesium according to 3:1 theoretical molar is dissolved in 150ml deionizations than weighing corresponding metal nitrate mixing respectively
Water is configured to the precursor solution of single step reaction, and heating stirring is carried out to it, and solution temperature is risen to 65 DEG C, then will configuration
The sal volatile of good 0.1mol/L, which is gradually added dropwise in mixed aqueous solution to solution entirety PH, becomes 10, and precipitating reagent drips
Magnetic stirring apparatus is used to stir 2h with 1000r/min after finishing, the solution that stirring finishes is placed in microwave field, adjusts microwave field temperature
Degree fully reacts 2h to 20 DEG C, adds the cerous nitrate of certain mol proportion into solution again, and it is 3 to make catalyst entirety molar ratio:
1:3, make the potassium hydroxide solution for the 0.2mol/L being configured gradually then is added dropwise to mixed aqueous solution, by solution entirety PH again
It is secondary to be transferred to 10, it places it in 60 DEG C of microwave fields and fully reacts 1h, washed after then the product after reaction is taken out, alcohol is washed, and is taken out
Filter, filtered sample, which is placed in microwave field, thoroughly to be dried, and dried sample is placed in Muffle furnace, and 6h is roasted at 400 DEG C,
The particle of 40-60 mesh is made in ground, tabletting, sieving.
Examination condition：
Oxidation of formaldehyde reaction carries out in fixed-bed quartz reactor, and thermocouple is inserted into catalyst bed to measure bed
Layer temperature.Reaction gas is N2、O2And the gaseous mixture of formaldehyde gas, gas flow is controlled by mass flowmenter, gaseous state air speed is
20000h-1.Concentration of formaldehyde is 10ppm in reaction gas, imports and exports concentration by measuring formaldehyde, calculates the purification efficiency of catalyst.
Appraisal result is shown in Table 1.
Table 1
| Catalyst is numbered | Formaldehyde removal efficiency (%) |
| Embodiment 1 | 93 |
| Embodiment 2 | 95 |
| Embodiment 3 | 99 |
As the test result of table 1 it is found that the catalyst obtained by the present invention has preferable purifying formaldehyde at room temperature
Effect.Above example is only used for clearly illustrating technical scheme of the present invention, and cannot with this come limit the present invention
Protection domain.It can also do several optimizations and deformation on the basis of the present invention, all changes without departing substantially from inventive concept or replace on an equal basis
Dai Jun is within protection scope of the present invention.
Claims (4)
1. a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation, it is characterised in that catalyst raw material
All using base metal salt, the catalyst is made by following steps：
(1) manganese salt of certain mol proportion and other base metal salt are dissolved in the deionized water of 50~200ml, are configured to forerunner
Liquid solution one carries out heating stirring to it, and one temperature of precursor solution is risen to 40~80 DEG C；
(2) certain density precipitating reagent is configured, is added drop-wise in precursor solution one, one entirety PH of precursor solution is transferred to 8~
11；
(3) magnetic stirring apparatus is used to stir 2~4h with 300~1000r/min after precipitating reagent is added dropwise；
(4) solution that stirring finishes is placed in microwave field, adjustment microwave field temperature fully reacts 1~3h to 20~40 DEG C；
(5) sample that single step reaction is completed is taken out, the rare earth element of certain mol proportion is added into solution again, is configured to forerunner
Liquid solution two；
(6) certain density precipitating reagent is configured, is added drop-wise in precursor solution two, solution entirety PH is transferred to 8~11 again；
(7) solution that step (6) prepares is directly placed into microwave field, adjustment microwave field temperature fully reacts 1 to 60~80 DEG C
~3h；
(8) product after step (7) is reacted is washed with deionized 3~4 times after taking out, and filters；Again 2 are washed with absolute ethyl alcohol
It~3 times, filters；
(9) step (8) filtered sample is placed in microwave field and thoroughly dried, dried sample is placed in Muffle furnace,
3~6h is roasted at 200~600 DEG C, sample is ground after roasting, tabletting, sieving are purified formaldehyde catalyst.
2. according to claim 1 it is a kind of can at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation,
It is characterized in that other described base metal salt correspond to any one in metal salt for aluminium, iron, zirconium, cobalt, magnesium, rare earth element is
One kind in lanthanum, praseodymium, cerium, gadolinium, neodymium.
3. according to claim 2 it is a kind of can at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation,
It is characterized in that manganese salt and other base metal molar ratios are 3:0.1~10, the molar ratio of base metal salt and rare earth element is 3.1
~13:0.05~10.
4. according to claim 1 it is a kind of can at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation,
It is characterized in that precipitating reagent for one kind or several in potassium hydroxide, potassium carbonate, ammonium carbonate, ammonium hydroxide, natrium carbonicum calcinatum and sodium hydroxide
Kind, precipitant concentration is 0.1~5mol/L.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810073524.1A CN108187688A (en) | 2018-01-25 | 2018-01-25 | It is a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation |
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| CN201810073524.1A CN108187688A (en) | 2018-01-25 | 2018-01-25 | It is a kind of can be at room temperature by the preparation method of the catalyst of formaldehyde complete catalysts oxidation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513448A (en) * | 2018-11-23 | 2019-03-26 | 南开大学 | It is a kind of to contain Mn catalyst and preparation method thereof with removal formaldehyde at room temperature |
| CN109603889A (en) * | 2018-12-17 | 2019-04-12 | 上海应用技术大学 | A kind of catalyst and preparation method thereof for formaldehyde low-temperature catalytic oxidation |
| CN109603853A (en) * | 2019-02-25 | 2019-04-12 | 青岛华世洁环保科技有限公司 | Normal-temperature catalyst and composite screen and its application |
| CN111672503A (en) * | 2020-06-03 | 2020-09-18 | 南京工程学院 | Load type long-acting formaldehyde purifying agent and preparation method and application thereof |
| CN112439410A (en) * | 2020-12-03 | 2021-03-05 | 长沙新宇高分子科技有限公司 | Catalyst for synthesizing aromatic ketone and method for catalytically synthesizing aromatic ketone by using same |
| CN112871202A (en) * | 2021-01-11 | 2021-06-01 | 宁波方太厨具有限公司 | Preparation method of catalyst for catalytic decomposition of formaldehyde |
| CN112973675A (en) * | 2021-03-26 | 2021-06-18 | 西安工程大学 | Preparation method of manganese cerium oxide catalyst for removing formaldehyde at room temperature |
| CN114345124A (en) * | 2022-01-14 | 2022-04-15 | 黎新安 | Air purifying agent capable of rapidly degrading formaldehyde and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028595A (en) * | 2006-03-01 | 2007-09-05 | 中国科学院大连化学物理研究所 | Manganese cerium composite oxide catalyst, its production and use |
| CN104338528A (en) * | 2013-07-30 | 2015-02-11 | 江苏瑞丰科技实业有限公司 | Preparation of room temperature formaldehyde catalyst |
| CN104907069A (en) * | 2015-04-22 | 2015-09-16 | 中国科学院生态环境研究中心 | Catalyst for room temperature formaldehyde purification, and use thereof |
| CN107096527A (en) * | 2017-05-22 | 2017-08-29 | 西安石油大学 | A kind of normal-temperature efficient catalysis oxidation formaldehyde catalyst, preparation method and application |
| CN107413328A (en) * | 2017-04-13 | 2017-12-01 | 湛江市斯格特环境科技有限公司 | A kind of area load type material for air purification and preparation method thereof |
-
2018
- 2018-01-25 CN CN201810073524.1A patent/CN108187688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028595A (en) * | 2006-03-01 | 2007-09-05 | 中国科学院大连化学物理研究所 | Manganese cerium composite oxide catalyst, its production and use |
| CN104338528A (en) * | 2013-07-30 | 2015-02-11 | 江苏瑞丰科技实业有限公司 | Preparation of room temperature formaldehyde catalyst |
| CN104907069A (en) * | 2015-04-22 | 2015-09-16 | 中国科学院生态环境研究中心 | Catalyst for room temperature formaldehyde purification, and use thereof |
| CN107413328A (en) * | 2017-04-13 | 2017-12-01 | 湛江市斯格特环境科技有限公司 | A kind of area load type material for air purification and preparation method thereof |
| CN107096527A (en) * | 2017-05-22 | 2017-08-29 | 西安石油大学 | A kind of normal-temperature efficient catalysis oxidation formaldehyde catalyst, preparation method and application |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513448A (en) * | 2018-11-23 | 2019-03-26 | 南开大学 | It is a kind of to contain Mn catalyst and preparation method thereof with removal formaldehyde at room temperature |
| CN109603889A (en) * | 2018-12-17 | 2019-04-12 | 上海应用技术大学 | A kind of catalyst and preparation method thereof for formaldehyde low-temperature catalytic oxidation |
| CN109603889B (en) * | 2018-12-17 | 2021-07-20 | 上海应用技术大学 | Catalyst for low-temperature catalytic oxidation of formaldehyde and preparation method thereof |
| CN109603853A (en) * | 2019-02-25 | 2019-04-12 | 青岛华世洁环保科技有限公司 | Normal-temperature catalyst and composite screen and its application |
| CN109603853B (en) * | 2019-02-25 | 2021-08-27 | 青岛华世洁环保科技有限公司 | Normal temperature catalyst, composite filter screen and application thereof |
| CN111672503A (en) * | 2020-06-03 | 2020-09-18 | 南京工程学院 | Load type long-acting formaldehyde purifying agent and preparation method and application thereof |
| CN111672503B (en) * | 2020-06-03 | 2023-02-03 | 南京工程学院 | Load type long-acting formaldehyde purifying agent and preparation method and application thereof |
| CN112439410A (en) * | 2020-12-03 | 2021-03-05 | 长沙新宇高分子科技有限公司 | Catalyst for synthesizing aromatic ketone and method for catalytically synthesizing aromatic ketone by using same |
| CN112871202A (en) * | 2021-01-11 | 2021-06-01 | 宁波方太厨具有限公司 | Preparation method of catalyst for catalytic decomposition of formaldehyde |
| CN112973675A (en) * | 2021-03-26 | 2021-06-18 | 西安工程大学 | Preparation method of manganese cerium oxide catalyst for removing formaldehyde at room temperature |
| CN114345124A (en) * | 2022-01-14 | 2022-04-15 | 黎新安 | Air purifying agent capable of rapidly degrading formaldehyde and preparation method thereof |
| CN114345124B (en) * | 2022-01-14 | 2023-11-03 | 广东九田环保科技有限公司 | Air purifying agent capable of rapidly degrading formaldehyde and preparation method thereof |
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