CN108326321A - A method of utilizing plant polyose synthesizing water-solubility duplex metal alloy nano particle - Google Patents
A method of utilizing plant polyose synthesizing water-solubility duplex metal alloy nano particle Download PDFInfo
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- CN108326321A CN108326321A CN201810201550.8A CN201810201550A CN108326321A CN 108326321 A CN108326321 A CN 108326321A CN 201810201550 A CN201810201550 A CN 201810201550A CN 108326321 A CN108326321 A CN 108326321A
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
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Abstract
The invention discloses a kind of methods using plant polyose synthesizing water-solubility duplex metal alloy nano particle, include the following steps：The pH that plant polyose and metal salt are placed in liner in the autoclave of polytetrafluoroethylene (PTFE), to add polyvinylpyrrolidone or inorganic acid adjusting reaction solution finally supplements deionized water, being sufficiently stirred makes material be uniformly mixed between 1.0 ~ 3.0；Then autoclave sealing is placed in Muffle furnace or baking oven, 5 ~ 36h is reacted at 180 ~ 210 DEG C of temperature, take out autoclave, cooled to room temperature；Product after cooling is centrifuged to get water-soluble duplex metal alloy nano particle.The present invention is the organic matter with reproducibility such as sugar, aldehyde using plant polysaccharide degradation, for restoring duplex metal alloy nano particle, it is a kind of not only simple and efficient but also economic and environment-friendly synthetic method, the bimetallic alloy morphology and size of synthesis is controllable, is uniformly dispersed, and can be stabilized in aqueous solution.
Description
Technical field
The invention belongs to metal nano material preparing technical fields, and in particular to a kind of to utilize plant polyose synthesizing water-solubility
The method of duplex metal alloy nano particle.
Background technology
Duplex metal alloy nano particle generates collaboration since the function of two kinds of metals can be organically combined together by it
Effect, and pass through regulate and control alloy the Nomenclature Composition and Structure of Complexes, moreover it is possible to make it in terms of certain or various performances on be better than single gold
Metal nanometer material, thus the preparation and application of duplex metal alloy nano particle have become advanced subject in contemporary science and technology it
One.Currently, the common preparation method of duplex metal alloy nano particle be two steps monometallic nano wire it is pre-prepared-displacement method.To the greatest extent
Pipe is in this way, previously prepared monometallic nano wire（Ag, Pd etc.）Process condition it is harsher, need to assist relatively expensive, toxic
Organic reagent, this will necessarily bring certain problem of environmental pollution.
In recent years, the research of material preparation process greenization becomes more and more active, and utilizes various plants（Mainly plant leaf
Boil liquid or leaching liquid etc.）The bioanalysis for preparing duplex metal alloy nano particle is concerned.Nevertheless, different plants is by ground
The influence in domain and growth period is bigger, and plant extraction liquid ingredient is extremely complex, causes them anti-in metal precursor reduction
It should still be not known with the nanoparticle nucleated specific effect with growth course, thus limit bioanalysis and prepare bimetallic alloy
The promotion and application of nano particle.
Plant polyose（Mainly chitosan and cellulose）There are extensive distribution and abundant reserves in nature, is one
The inexhaustible renewable resource of kind.Under given conditions, plant polyose is degradable has reduction for sugar, aldehyde etc.
The organic matter of property yet there are no this so as to the duplex metal alloy nano particle controllable for reduction synthesis morphology and size
The relevant report of aspect.
Invention content
The purpose of the present invention is to provide a kind of sides using plant polyose synthesizing water-solubility duplex metal alloy nano particle
Method.
To achieve the above object, the present invention adopts the following technical scheme that：
A method of using plant polyose synthesizing water-solubility duplex metal alloy nano particle, include the following steps：
（1）Plant polyose and metal salt are placed in the autoclave that liner is polytetrafluoroethylene (PTFE), add polyvinyl pyrrole
Alkanone（PVP）Or the pH that inorganic acid adjusts reaction solution finally supplements deionized water, being sufficiently stirred makes object between 1.0 ~ 3.0
Material is uniformly mixed；
（2）The sealing of above-mentioned autoclave is placed in Muffle furnace or baking oven, 5 ~ 36h is reacted at 180 ~ 210 DEG C of temperature, is taken
Go out autoclave, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble duplex metal alloy nano particle.
The plant polyose is the mixture of one or both of chitosan or cellulose.
The metal salt is two kinds in gold chloride, silver sulfate, palladium nitrate, and the duplex metal alloy nano particle is
Rhotanium nano particle, silver palladium alloy nano particle or gold-silver alloy nano particle.
The metal salt is two kinds in gold chloride, silver sulfate, palladium bichloride, and the duplex metal alloy nano particle is
Rhotanium nano particle, silver palladium alloy nano particle or gold-silver alloy nano particle.
The inorganic acid is sulfuric acid, hydrochloric acid or nitric acid.
The mass ratio of the plant polyose and metal salt is 1: 2 ~ 30.
The polyvinylpyrrolidone addition is the 1-10% of the sum of amount of metal salt substance.
The additive amount of the deionized water is the 40 ~ 70% of polytetrafluoroethyllining lining volume.
The present invention uses above technical scheme, is the organic matter with reproducibility such as sugar, aldehyde using plant polysaccharide degradation, from
And it is used to restore duplex metal alloy nano particle.Present invention process is simple, and reaction condition is mild, is a kind of not only simple and efficient but also passes through
It helps environmentally friendly synthesis method, the bimetallic alloy morphology and size of synthesis is controllable, is uniformly dispersed, and can stablize in aqueous solution and deposit
.
Specific implementation mode
Embodiment 1
A method of using plant polyose synthesizing water-solubility gold-silver alloy nano particle, include the following steps：
（1）By chitosan and metal salt（Gold chloride and silver sulfate）It is placed in the autoclave that liner is polytetrafluoroethylene (PTFE),
The mass ratio of chitosan and metal salt is 1: 2, adds 1% PVP of the sum of amount of metal salt substance, adjusts reaction solution
PH is 1.0, is eventually adding the deionized water of polytetrafluoroethyllining lining volume 40%, and being sufficiently stirred makes material be uniformly mixed；
（2）The sealing of above-mentioned autoclave is placed in Muffle furnace, 5 h are reacted at 180 DEG C of temperature, takes out reaction under high pressure
Kettle, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble gold-silver alloy nano particle.
Embodiment 2
A method of using plant polyose synthesizing water-solubility rhotanium nano particle, include the following steps：
（1）By cellulose and metal salt（Gold chloride and palladium nitrate）It is placed in the autoclave that liner is polytetrafluoroethylene (PTFE), it is fine
The mass ratio of dimension element and metal salt is 1: 15, adds 5% PVP of the sum of amount of metal salt substance, adjusts the pH of reaction solution
It is 2.0, is eventually adding the deionized water of polytetrafluoroethyllining lining volume 55%, being sufficiently stirred makes material be uniformly mixed；
（2）The sealing of above-mentioned autoclave is placed in Muffle furnace, 20h is reacted at 200 DEG C of temperature, takes out reaction under high pressure
Kettle, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble rhotanium nano particle.
Embodiment 3
A method of using plant polyose synthesizing water-solubility silver palladium alloy nano particle, include the following steps：
（1）By plant polyose（The chitosan and cellulose of equal proportion）And metal salt（Silver sulfate and palladium nitrate）It is poly- to be placed in liner
In the autoclave of tetrafluoroethene, the mass ratio of plant polyose and metal salt is 1: 30, add metal salt substance amount it
10% PVP of sum, the pH for adjusting reaction solution is 3.0, is eventually adding the deionized water of polytetrafluoroethyllining lining volume 70%, fills
Divide stirring that material is made to be uniformly mixed；
（2）The sealing of above-mentioned autoclave is placed in baking oven, 5 ~ 36h is reacted at 210 DEG C of temperature, takes out reaction under high pressure
Kettle, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble silver palldium alloy nano particle.
Embodiment 4
A method of using plant polyose synthesizing water-solubility rhotanium nano particle, include the following steps：
（1）By chitosan and metal salt（Gold chloride and palladium bichloride）It is placed in the autoclave that liner is polytetrafluoroethylene (PTFE),
The mass ratio of chitosan and metal salt is 1: 10, adds inorganic acid, and the pH for adjusting reaction solution is 1.5, is eventually adding poly- four
The deionized water of vinyl fluoride liner volume 50%, being sufficiently stirred makes material be uniformly mixed；
（2）The sealing of above-mentioned autoclave is placed in Muffle furnace, 10h is reacted at 190 DEG C of temperature, takes out reaction under high pressure
Kettle, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble rhotanium nano particle.
Embodiment 5
A method of using plant polyose synthesizing water-solubility silver palladium alloy nano particle, include the following steps：
（1）By plant polyose（Mass ratio is 1:2 chitosan or cellulose）And metal salt（Silver sulfate and palladium bichloride）In being placed in
Lining is in the autoclave of polytetrafluoroethylene (PTFE), and the mass ratio of plant polyose and metal salt is 1: 20, adds inorganic acid, is adjusted
The pH of reaction solution is 2.5, is eventually adding the deionized water of polytetrafluoroethyllining lining volume 60%, being sufficiently stirred makes material mix
Uniformly；
（2）The sealing of above-mentioned autoclave is placed in baking oven, 25h is reacted at 195 DEG C of temperature, takes out autoclave,
Cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble silver palldium alloy nano particle.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (8)
1. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle, it is characterised in that：It include with
Lower step：
（1）Plant polyose and metal salt are placed in the autoclave that liner is polytetrafluoroethylene (PTFE), add polyvinyl pyrrole
The pH that alkanone or inorganic acid adjust reaction solution finally supplements deionized water, being sufficiently stirred makes material mix between 1.0 ~ 3.0
Uniformly；
（2）The sealing of above-mentioned autoclave is placed in Muffle furnace or baking oven, 5 ~ 36h is reacted at 180 ~ 210 DEG C of temperature, is taken
Go out autoclave, cooled to room temperature；
（3）Product after cooling is centrifuged to get water-soluble duplex metal alloy nano particle.
2. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The plant polyose is the mixture of one or both of chitosan or cellulose.
3. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The metal salt is two kinds in gold chloride, silver sulfate, palladium nitrate, the bimetallic alloy nanometer
Grain is rhotanium nano particle, silver palladium alloy nano particle or gold-silver alloy nano particle.
4. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The metal salt is two kinds in gold chloride, silver sulfate, palladium bichloride, the bimetallic alloy nanometer
Grain is rhotanium nano particle, silver palladium alloy nano particle or gold-silver alloy nano particle.
5. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The inorganic acid is sulfuric acid, hydrochloric acid or nitric acid.
6. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The mass ratio of the plant polyose and metal salt is 1: 2 ~ 30.
7. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The polyvinylpyrrolidone addition is the 1-10% of the sum of amount of metal salt substance.
8. a kind of method using plant polyose synthesizing water-solubility duplex metal alloy nano particle according to claim 1,
It is characterized in that：The additive amount of the deionized water is the 40 ~ 70% of polytetrafluoroethyllining lining volume.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505489A (en) * | 2020-10-27 | 2022-05-17 | 深圳市华科创智技术有限公司 | Preparation method of silver nanowires |
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| CN114505489A (en) * | 2020-10-27 | 2022-05-17 | 深圳市华科创智技术有限公司 | Preparation method of silver nanowires |
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Application publication date: 20180727 |