CN103611573A - Preparation method of alloy nano catalyst and method for photocatalytic degradation of ethylene by using catalyst - Google Patents
Preparation method of alloy nano catalyst and method for photocatalytic degradation of ethylene by using catalyst Download PDFInfo
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- CN103611573A CN103611573A CN201310604235.7A CN201310604235A CN103611573A CN 103611573 A CN103611573 A CN 103611573A CN 201310604235 A CN201310604235 A CN 201310604235A CN 103611573 A CN103611573 A CN 103611573A
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- zif
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Abstract
The invention relates to a preparation method for loading different contents and ratios of thermometal PtPd alloy nano catalysts to a zeolite imidazole skeleton structure material ZIF-8 by adopting an in-situ one-pot method. The chemical expression formula of the catalyst is PtxPd10-x@ZIF-8, wherein x is equal to 1-9; the molecular formula of the ZIF-8 is [Zn-(mim)2]n; the Hmin is 2-methylimidazole. The ethylene can be catalytically degraded with high activity by the catalyst under the sun.
Description
Technical field
The invention belongs to catalytic degradation ethene technical field, be specifically related to a kind of preparation method of load P dPt alloy catalyst and the application of catalyzed ethylene degraded.
Background technology
Ethene is important petrochemical industry intermediate, is also the ripener of fruit, vegetables etc. simultaneously.But excessive ethene is unfavorable for the fresh-keeping of fruit, vegetables etc., can make it putrid and deteriorated.Therefore in the warehouse of preserving fruit, vegetables, refrigerator, ethene degraded must be removed.Nano particle is the catalyst of important catalytic degradation ethene, and its load must be distributed to and in carrier, be beneficial to stabilized nanoscale catalyst and improve catalytic activity.Metal-organic framework compound, because it is easy to synthesize, has the adjustable duct of large specific area, rule, is therefore important carrier, in fields such as catalysis, has potential using value, becomes the focus of Recent study.
Summary of the invention
The object of the invention is to propose a kind of by bimetallic PtPd alloy nano catalyst cupport in the preparation method of zeolite imidazole radicals frame structure material ZIF-8 and be applied to catalytic degradation ethene.
The present invention proposes a kind of by the bimetallic PtPd alloy nano catalyst cupport of different content, different proportion the preparation method in zeolite imidazole radicals frame structure material ZIF-8, it is characterized in that, its chemical expression is Pt
xpd
10-x@ZIF-8, wherein: x=1-9; The molecular formula of ZIF-8 is [Zn-(mim)
2]
n(Hmim is glyoxal ethyline)
Wherein the structural formula of ZIF-8 is as follows:
The preparation method at zeolite imidazate frame structure material ZIF-8 by bimetallic PtPd alloy nano catalyst cupport that the present invention proposes, its preparation process is as follows:
At room temperature, the methanol solution of glyoxal ethyline and zinc nitrate hexahydrate is joined to the Pt being dispersed in methyl alcohol
xpd
10-xin alloy nanoparticle colloid, the ratio of three's amount of substance is 0.005～0.15:1:1, stirs 5-10 second, and standing 24-72 hour, filters, methanol wash, and vacuum drying, obtains loading on the bimetallic PtPd alloy nano catalyst in ZIF-8.
The bimetallic PtPd alloy nano catalyst degrading ethylene step that the use that the present invention proposes loads in ZIF-8 is as follows: in reaction system, add Pt
xpd
10-x@ZIF-8, the ethene that reinjects (50-500ppm), oxygen (20vol%), nitrogen are made Balance Air, xenon lamp as light source, reaction temperature 0-25 ℃, after reaction 0.5-24h, gas chromatographic analysis ethylene contents.
Accompanying drawing explanation
Accompanying drawing is Pt
xpd
10-xbimetallic is wrapped in the transmission electron microscope picture in ZIF-8 crystal.
The specific embodiment
Embodiment 1: load on the bimetallic Pt in ZIF-8
1pd
9alloy nano catalyst 1
At room temperature, by the 10ml methanol solution containing 0.1mmol2-methylimidazole, containing the 10ml methanol solution of 0.1mmol zinc nitrate hexahydrate, join the Pt containing 0.0005mmol
1pd
9in the 10ml methyl alcohol colloid of alloy nanoparticle, stir 5 seconds, standing 24 hours, filter, methanol wash, vacuum drying, obtaining loading in ZIF-8 is bimetallic Pt
1pd
9alloy nano catalyst 1, wherein Pt content is 0.64wt%.
Embodiment 2: load on the bimetallic Pt in ZIF-8
5pd
5alloy nano catalyst 2
At room temperature, by the 10ml methanol solution containing 0.1mmol2-methylimidazole, containing the 10ml methanol solution of 0.1mmol zinc nitrate hexahydrate, join the Pt containing 0.0005mmol
5pd
5in the 10ml methyl alcohol colloid of alloy nanoparticle, stir 5 seconds, standing 24 hours, filter, methanol wash, vacuum drying, obtaining loading in ZIF-8 is bimetallic Pt
5pd
5alloy nano catalyst 2, wherein Pt content is 0.68wt%.
Embodiment 3: load on the bimetallic Pt in ZIF-8
5pd
5alloy nano catalyst 3
At room temperature, by the 100ml methanol solution containing 0.1mol2-methylimidazole, containing the 100ml methanol solution of 0.1mol zinc nitrate hexahydrate, join the Pt containing 0.015mmol
5pd
5in the 100ml methyl alcohol colloid of alloy nanoparticle, stir 10 seconds, after standing 72 hours, filter, methanol wash, vacuum drying, obtaining loading in ZIF-8 is bimetallic Pt
5pd
5alloy nano catalyst 3, wherein Pt content is 15.56wt%.
Embodiment 4: with catalyst degrading ethylene in embodiment 1
In reaction system, add 25mg Pt
1pd
9@ZIF-8, injection ethene (50ppm), oxygen (20vol%), nitrogen are made Balance Air, xenon lamp as light source, 0 ℃ of reaction temperature, after reaction 0.5h, gas chromatographic analysis ethene has degraded 96.7%.
Embodiment 4: with catalyst degrading ethylene in embodiment 2
In reaction system, add 200mg Pt
1pd
9@ZIF-8, injection ethene (500ppm), oxygen (20vol%), nitrogen are made Balance Air, xenon lamp as light source, 25 ℃ of reaction temperatures, after reaction 24h, gas chromatographic analysis ethene has degraded 98.5%.
Claims (3)
1. a bimetallic PtPd alloy nano catalyst, is characterized in that, its chemical expression is Pt
xpd
10-x@ZIF-8, wherein: x=1-9; The molecular formula of ZIF-8 is [Zn-(mim)
2]
n, wherein Hmim is glyoxal ethyline.
2. a preparation method for catalyst described in claim 1, is characterized in that concrete steps are as follows: at room temperature, the methanol solution of glyoxal ethyline and zinc nitrate hexahydrate is joined to the Pt being dispersed in methyl alcohol
xpd
10-xin alloy nanoparticle colloid, the ratio of three's amount of substance is 0.005～0.15:1:1, stirs 5-10 second, and standing 24-72 hour, filters, methanol wash, and vacuum drying, obtains loading on the bimetallic PtPd alloy nano catalyst in ZIF-8.
3. a catalyst claimed in claim 1 application in catalyzed ethylene degraded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310604235.7A CN103611573A (en) | 2013-11-25 | 2013-11-25 | Preparation method of alloy nano catalyst and method for photocatalytic degradation of ethylene by using catalyst |
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| CN201310604235.7A CN103611573A (en) | 2013-11-25 | 2013-11-25 | Preparation method of alloy nano catalyst and method for photocatalytic degradation of ethylene by using catalyst |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040302A (en) * | 2016-06-23 | 2016-10-26 | 南京工业大学 | Hydrogenation catalyst |
| CN106334576A (en) * | 2016-10-10 | 2017-01-18 | 大连民族大学 | Assistant load type photocatalyst and preparation method and application |
| CN108213414A (en) * | 2017-12-29 | 2018-06-29 | 安庆师范大学 | A kind of method and its application for coating MOF and improving gold nano cluster photostability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335628A (en) * | 2011-07-21 | 2012-02-01 | 南京大学 | Load-type nanometer duplex metal composite catalyst and preparation method thereof |
| CN102350343A (en) * | 2011-08-17 | 2012-02-15 | 武汉工程大学 | Pd-Pt alloy structural catalyst, and preparation method and application thereof |
| CN103263825A (en) * | 2013-05-15 | 2013-08-28 | 华南农业大学 | Plasma coupled photo-catalysis method and system for removing ethylene in fresh-keeping storehouse of vegetables and fruits |
| CN103394373A (en) * | 2013-04-27 | 2013-11-20 | 南京工业大学 | Preparation method of hydrogenation catalyst |
-
2013
- 2013-11-25 CN CN201310604235.7A patent/CN103611573A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335628A (en) * | 2011-07-21 | 2012-02-01 | 南京大学 | Load-type nanometer duplex metal composite catalyst and preparation method thereof |
| CN102350343A (en) * | 2011-08-17 | 2012-02-15 | 武汉工程大学 | Pd-Pt alloy structural catalyst, and preparation method and application thereof |
| CN103394373A (en) * | 2013-04-27 | 2013-11-20 | 南京工业大学 | Preparation method of hydrogenation catalyst |
| CN103263825A (en) * | 2013-05-15 | 2013-08-28 | 华南农业大学 | Plasma coupled photo-catalysis method and system for removing ethylene in fresh-keeping storehouse of vegetables and fruits |
Non-Patent Citations (1)
| Title |
|---|
| TAYIRJAN T. ISIMJAN 等: "Photocatalytic activities of PtZIF-8 loaded highly ordered TiO2 nanotubes", 《JOURNAL OF MATERIALS CHEMISTRY》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040302A (en) * | 2016-06-23 | 2016-10-26 | 南京工业大学 | Hydrogenation catalyst |
| CN106334576A (en) * | 2016-10-10 | 2017-01-18 | 大连民族大学 | Assistant load type photocatalyst and preparation method and application |
| CN106334576B (en) * | 2016-10-10 | 2018-10-23 | 大连民族大学 | A kind of auxiliary agent loaded photocatalyst and preparation method and application |
| CN108213414A (en) * | 2017-12-29 | 2018-06-29 | 安庆师范大学 | A kind of method and its application for coating MOF and improving gold nano cluster photostability |
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Application publication date: 20140305 |