CN109174166A - A kind of molecular sieve catalyst and its preparation method and application of room temperature degradation of formaldehyde - Google Patents
A kind of molecular sieve catalyst and its preparation method and application of room temperature degradation of formaldehyde Download PDFInfo
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- CN109174166A CN109174166A CN201811004837.8A CN201811004837A CN109174166A CN 109174166 A CN109174166 A CN 109174166A CN 201811004837 A CN201811004837 A CN 201811004837A CN 109174166 A CN109174166 A CN 109174166A
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- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
- B01J29/068—Noble metals
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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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
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- C—CHEMISTRY; METALLURGY
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
- C01B39/04—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof using at least one organic template directing agent, e.g. an ionic quaternary ammonium compound or an aminated compound
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Abstract
The invention belongs to catalyst technical fields, disclose a kind of molecular sieve catalyst and its preparation method and application that room temperature is degraded except formaldehyde.The catalyst is synthesized by following raw material: NaAlO2, NaOH, Fumed SiO2, platinum nitrate solution.The molecular sieve step of synthesis is simple, and carried noble metal is less, can effectively remove formaldehyde, and the formaldehyde removed can be directly translated into non-toxic components and permanently effective.
Description
Technical field
The invention belongs to catalyst technical fields, and in particular to a kind of degradation of room temperature except formaldehyde molecular sieve catalyst and its
Preparation method and application.
Background technique
A large amount of formaldehyde are flooded in newly-decorated new house, long-time inhaled formaldehyde harm to the human body is huge, can lead to various
Disease.Therefore, every country is very strict to the standard of indoor formaldehyde." Indoor Air Quality standards " of China provide Interior Space
The sanitary standard maximum permissible concentration of formaldehyde is 0.1mg/m in gas3.The method for removing formaldehyde currently on the market is varied, but
It is most of all the concentration of formaldehyde to be dropped to national standard.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the primary purpose of the present invention is that providing a kind of room temperature drop
The molecular sieve catalyst of formaldehyde is released, which can achieve the purpose that remove indoor formaldehyde at room temperature, i.e., will
Formaldehyde is converted into carbon dioxide and water.
Another object of the present invention is to provide a kind of preparation methods of above-mentioned catalyst, and the preparation method is simple, your gold
Category load capacity is low and can carry out effective formaldehyde removal for a long time.
A further object of the present invention is to provide a kind of applications of above-mentioned catalyst.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of preparation method that room temperature is degraded except the molecular sieve catalyst of formaldehyde, comprising the following steps:
(1) by NaAlO2It is dissolved under magnetic stirring in deionized water with NaOH, obtains A liquid；
(2) by Fumed SiO2It is added in above-mentioned A liquid under magnetic stirring, B liquid is prepared；
(3) gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), room temperature stirs to get C liquid；
(4) C liquid obtained in step (3) is placed in oil bath pan, is stirred；
(5) platinum nitrate solution is added drop-wise in above-mentioned steps (4) acquired solution, obtained mixture continues to stir, synthesis
Gel；
(6) then gel obtained by step (5) is heated up under stiring, crystallization；
(7) the complete solution of crystallization in step (6) is filtered, is washed with deionized to neutrality, then dry in an oven；
(8) molecular sieve made from step (7) being placed in Muffle furnace, calcining removes organic formwork agent in air atmosphere,
Obtain the molecular sieve catalyst that room temperature degradation removes formaldehyde.
Step (1) and (2) described stirring are to be stirred at room temperature with 300rpm speed；
Stirring described in step (3) is 10~30min of stirring under 600~800rpm speed；
Stirring is to stir under 300~500rpm speed 2~5 hours, 50~80 DEG C of temperature described in step (4)；
Stirring is to stir under 300~500rpm speed 1~2 hour, 50~80 DEG C of temperature described in step (5)；
The speed of stirring described in step (6) is 300~500rpm；The heating is that temperature is risen to 90~110 DEG C；Institute
State 16~18 hours time of crystallization, 80~100 DEG C of temperature.
Drying described in step (7) is in 100~105 DEG C of dry 10~12h；It calcines and refers to 400 described in step (8)
~550 DEG C of 5~6h of roasting.
The concentration of platinum nitrate solution described in step (5) is 0.01g/ml.
The NaAlO2、NaOH、Fumed SiO2Ratio with platinum nitrate is 3:5:2:0.1.
A kind of room temperature degradation prepared by the preparation method removes the molecular sieve catalyst of formaldehyde.
Above-mentioned molecular sieve catalyst is except the application in formaldehyde field.
Compared with prior art, the present invention has the following advantages and beneficial effects:
(1) the molecular sieve step that the present invention synthesizes is simple, and carried noble metal is less, can effectively remove formaldehyde.
(2) formaldehyde removed can be directly translated into non-toxic components, and permanently effective.
Detailed description of the invention
Fig. 1 is X-ray diffractogram of the 1 gained room temperature of the embodiment of the present invention except the molecular sieve of formaldehyde.
Fig. 2 is x-ray photoelectron spectroscopy of the 1 gained room temperature of the embodiment of the present invention except the molecular sieve of formaldehyde.
Fig. 3 is effect picture of the 1 gained room temperature of the embodiment of the present invention except the molecular sieve of formaldehyde.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40),
Magnetic agitation 300rpm at room temperature obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid, room
The lower magnetic agitation 300rpm of temperature, is prepared B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), room temperature,
10min is stirred under conditions of 800rpm, obtains C liquid.By C liquid obtained in oil bath pan, 3 400rpm, are stirred under the conditions of 60 DEG C
Hour.It configures platinum nitrate solution (0.4g platinum nitrate, 10ml water), 10mL is added drop-wise in solution obtained above, is then obtained
Mixture continues synthesized gel rubber uniform stirring 1 hour under the conditions of 400rpm, 60 DEG C.Then by hydrogel warms to 100 DEG C, and
The crystallization 16 hours under conditions of 100 DEG C, 400rpm.The complete solution of crystallization is filtered into (Buchner funnel), is washed with deionized
To neutrality.It is 12 hours dry under conditions of 100 DEG C in an oven again.Molecular sieve obtained is in Muffle furnace, air atmosphere, 400
5h is calcined under the conditions of DEG C and removes organic formwork agent, and the molecular sieve catalyst that room temperature degradation removes formaldehyde can be obtained.
Embodiment 2
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40),
Magnetic agitation 300rpm at room temperature obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid, room
The lower magnetic agitation 300rpm of temperature, is prepared B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), room temperature,
10min is stirred under conditions of 800rpm, obtains C liquid.By C liquid obtained in oil bath pan, 3 400rpm, are stirred under the conditions of 60 DEG C
Hour.It configures platinum nitrate solution (0.2g platinum nitrate, 10ml water), 10mL is added drop-wise in solution obtained above, is then obtained
Mixture continues synthesized gel rubber uniform stirring 1 hour under the conditions of 400rpm, 60 DEG C.Then by hydrogel warms to 100 DEG C, and
The crystallization 16 hours under conditions of 100 DEG C, 400rpm.The complete solution of crystallization is filtered into (Buchner funnel), is washed with deionized
To neutrality.It is 12 hours dry under conditions of 100 DEG C in an oven again.Molecular sieve obtained is in Muffle furnace, air atmosphere, 400
5h is calcined under the conditions of DEG C and removes organic formwork agent, and the molecular sieve catalyst that room temperature degradation removes formaldehyde can be obtained.
Embodiment 3
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40)
(magnetic agitation) obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid (magnetic agitation), makes
It is standby to obtain B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), 15min is stirred under conditions of room temperature, 700rpm, obtains
To C liquid.By C liquid obtained in oil bath pan, 400rpm, stir 3 hours under the conditions of 70 DEG C.Configure platinum nitrate solution (0.4g nitre
Sour platinum, 10ml water), 10mL is added drop-wise in solution obtained above, and the mixture then obtained continues in 400rpm, 60 DEG C of conditions
Lower uniform stirring 1 hour, synthesized gel rubber.Then by hydrogel warms to 90 DEG C, and crystallization 18 is small under conditions of 90 DEG C, 400rpm
When.The complete solution of crystallization is filtered into (Buchner funnel), is washed with deionized to neutrality.Again in an oven under conditions of 100 DEG C
It is 10 hours dry.Molecular sieve obtained is in Muffle furnace, and air atmosphere, calcining 4h removes organic formwork agent under the conditions of 550 DEG C, i.e.,
The molecular sieve catalyst that room temperature degradation removes formaldehyde can be obtained.
Embodiment 4
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40)
(magnetic agitation) obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid (magnetic agitation), makes
It is standby to obtain B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), 10min is stirred under conditions of room temperature, 800rpm, obtains
To C liquid.By C liquid obtained in oil bath pan, 400rpm, stir 3 hours under the conditions of 60 DEG C.Configure platinum nitrate solution (0.3g nitre
Sour platinum, 10ml water), 10mL is added drop-wise in solution obtained above, and the mixture then obtained continues in 400rpm, 60 DEG C of conditions
Lower uniform stirring 1 hour, synthesized gel rubber.Then by hydrogel warms to 100 DEG C, and the crystallization 16 under conditions of 100 DEG C, 400rpm
Hour.The complete solution of crystallization is filtered into (Buchner funnel), is washed with deionized to neutrality.100 DEG C of condition in an oven again
Lower drying 12 hours.Molecular sieve obtained is in Muffle furnace, and air atmosphere, calcining 5h removes organic formwork agent under the conditions of 400 DEG C,
The molecular sieve catalyst that room temperature degradation removes formaldehyde can be obtained.
Embodiment 5
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40)
(magnetic agitation) obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid (magnetic agitation), makes
It is standby to obtain B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), 10min is stirred under conditions of room temperature, 800rpm, obtains
To C liquid.By C liquid obtained in oil bath pan, 400rpm, stir 3 hours under the conditions of 60 DEG C, synthesized gel rubber.Then by gel liter
Temperature is to 100 DEG C, and crystallization 16 hours under conditions of 100 DEG C, 400rpm.The complete solution of crystallization is filtered into (Buchner funnel), is used
Deionized water is washed to neutrality.It is 12 hours dry under conditions of 100 DEG C in an oven again.Molecular sieve obtained in Muffle furnace,
Air atmosphere, calcining 5h removes organic formwork agent under the conditions of 400 DEG C, and the molecular sieve catalytic that room temperature degradation removes formaldehyde can be obtained
Agent.
Embodiment 6
By 2.951gNaAlO2(M=81.97) it is dissolved in the deionized water of 22mL with the NaOH of 2.355g (M=40)
(magnetic agitation) obtains A liquid.By the Fumed SiO of 1.5g2(M=60.084) it is added in above-mentioned A liquid (magnetic agitation), makes
It is standby to obtain B liquid.Gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), 10min is stirred under conditions of room temperature, 800rpm, obtains
To C liquid.By C liquid obtained in oil bath pan, 400rpm, stir 3 hours under the conditions of 60 DEG C.Configure platinum nitrate solution (0.1g nitre
Sour platinum, 10ml water), 10mL is added drop-wise in solution obtained above, and the mixture then obtained continues in 400rpm, 60 DEG C of conditions
Lower uniform stirring 1 hour.Then by hydrogel warms to 100 DEG C, and crystallization 16 hours under conditions of 100 DEG C, 400rpm.It will be brilliant
The solution filtering (Buchner funnel) changed, is washed with deionized to neutrality.It is dry 12 small under conditions of 100 DEG C in an oven again
When.Molecular sieve obtained is in Muffle furnace, and air atmosphere, calcining 5h removes organic formwork agent under the conditions of 400 DEG C, can be obtained often
The molecular sieve catalyst of temperature drop releasing formaldehyde.
By taking embodiment 1 as an example, 1 gained molecular sieve catalyst of embodiment is analyzed.
The molecular sieve catalytic using D8Advance type X-ray diffractometer (Bruker company, Germany) prepared by embodiment 1
Agent is characterized.As a result as shown in Figure 1, as can be seen from Figure 1 sample presents the characteristic diffraction peak of LTA type zeolite.
Fig. 2 is that x-ray photoelectron spectroscopy analyzes example 1, indicates to contain a small amount of pt.
Fig. 3 is the degradation rate of the molecular sieve PARA FORMALDEHYDE PRILLS(91,95) of the synthesis of embodiment 1 at room temperature, is as can be seen from the figure degraded
Rate is up to 99%.
It can thus be concluded that go out the present invention prepared by molecular sieve catalyst can effective degradation of formaldehyde, improve air purification effect.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (7)
1. a kind of preparation method of molecular sieve catalyst of room temperature degradation except formaldehyde, it is characterised in that the following steps are included:
(1) by NaAlO2It is dissolved under magnetic stirring in deionized water with NaOH, obtains A liquid；
(2) by Fumed SiO2It is added in above-mentioned A liquid under magnetic stirring, B liquid is prepared；
(3) gained B liquid is sealed in the plastic bottle of polytetrafluoroethylene (PTFE), room temperature stirs to get C liquid；
(4) C liquid obtained in step (3) is placed in oil bath pan, is stirred；
(5) platinum nitrate solution is added drop-wise in above-mentioned steps (4) acquired solution, obtained mixture continues to stir, synthesized gel rubber；
(6) then gel obtained by step (5) is heated up under stiring, crystallization；
(7) the complete solution of crystallization in step (6) is filtered, is washed with deionized to neutrality, then dry in an oven；
(8) molecular sieve made from step (7) is placed in Muffle furnace, calcining removes organic formwork agent in air atmosphere, obtains
Room temperature degradation removes the molecular sieve catalyst of formaldehyde.
2. preparation method according to claim 1, it is characterised in that: step (1) and (2) it is described stirring be in room temperature condition
Under be stirred with 300rpm speed；
Stirring described in step (3) is 10~30min of stirring under 600~800rpm speed；
Stirring is to stir under 300~500rpm speed 2~5 hours, 50~80 DEG C of temperature described in step (4)；
Stirring is to stir under 300~500rpm speed 1~2 hour, 50~80 DEG C of temperature described in step (5)；
The speed of stirring described in step (6) is 300~500rpm；The heating is that temperature is risen to 90~110 DEG C；The crystalline substance
16~18 hours time of change, 80~100 DEG C of temperature.
3. preparation method according to claim 1, it is characterised in that: drying described in step (7) is at 100~105 DEG C
Dry 10~12h；Calcining described in step (8) refers in 400~550 DEG C of 5~6h of roasting.
4. preparation method according to claim 1, it is characterised in that: the concentration of platinum nitrate solution described in step (5) is
0.01g/ml。
5. preparation method according to claim 1, it is characterised in that: the NaAlO2、NaOH、Fumed SiO2And nitric acid
The ratio of platinum is 3:5:2:0.1.
6. a kind of room temperature degradation being prepared by any one of Claims 1 to 5 preparation method is except the molecular sieve of formaldehyde is urged
Agent.
7. molecular sieve catalyst according to claim 6 is except the application in formaldehyde field.
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| CN201811004837.8A CN109174166A (en) | 2018-08-30 | 2018-08-30 | A kind of molecular sieve catalyst and its preparation method and application of room temperature degradation of formaldehyde |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011189A (en) * | 2012-12-17 | 2013-04-03 | 吉林大学 | Microporous-mesoporous molecular sieve containing noble metal, preparation method and application to catalytic reduction of p-nitrophenol |
| CN106540741A (en) * | 2016-10-19 | 2017-03-29 | 浙江大学 | It is used at room temperature eliminating catalyst of formaldehyde and preparation method thereof |
| CN107185401A (en) * | 2017-05-25 | 2017-09-22 | 广西壮族自治区环境保护科学研究院 | A kind of absorption VOCS equipment |
| CN108002402A (en) * | 2017-12-08 | 2018-05-08 | 西北大学 | A kind of middle micro-diplopore MFI type nano molecular sieve with multi-layer steamed bread shape pattern and its preparation method and application |
| CN108071452A (en) * | 2016-11-16 | 2018-05-25 | 现代自动车株式会社 | Waste gas purification apparatus |
| CN108246351A (en) * | 2018-02-11 | 2018-07-06 | 浙江大学 | For the total silicon ZSM-5 molecular sieve catalyst and preparation method of room temperature purifying formaldehyde |
-
2018
- 2018-08-30 CN CN201811004837.8A patent/CN109174166A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011189A (en) * | 2012-12-17 | 2013-04-03 | 吉林大学 | Microporous-mesoporous molecular sieve containing noble metal, preparation method and application to catalytic reduction of p-nitrophenol |
| CN106540741A (en) * | 2016-10-19 | 2017-03-29 | 浙江大学 | It is used at room temperature eliminating catalyst of formaldehyde and preparation method thereof |
| CN108071452A (en) * | 2016-11-16 | 2018-05-25 | 现代自动车株式会社 | Waste gas purification apparatus |
| CN107185401A (en) * | 2017-05-25 | 2017-09-22 | 广西壮族自治区环境保护科学研究院 | A kind of absorption VOCS equipment |
| CN108002402A (en) * | 2017-12-08 | 2018-05-08 | 西北大学 | A kind of middle micro-diplopore MFI type nano molecular sieve with multi-layer steamed bread shape pattern and its preparation method and application |
| CN108246351A (en) * | 2018-02-11 | 2018-07-06 | 浙江大学 | For the total silicon ZSM-5 molecular sieve catalyst and preparation method of room temperature purifying formaldehyde |
Non-Patent Citations (2)
| Title |
|---|
| BAOYU LIU ET AL.: "The effect of oxidation of ethane to oxygenates on Pt- and Zn-containing LTA zeolites with tunable selectivity", 《JOURNAL OF ENERGY CHEMISTRY》 * |
| 姚运先: "《室内环境污染控制》", 30 June 2007, 中国环境科学出版社 * |
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Application publication date: 20190111 |