CN113277546B - Preparation method of gold nanoparticle implanted three-dimensional zinc oxide nano network material - Google Patents
Preparation method of gold nanoparticle implanted three-dimensional zinc oxide nano network material Download PDFInfo
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000010931 gold Substances 0.000 title claims abstract description 90
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 90
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 67
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002243 precursor Substances 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000000084 colloidal system Substances 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 121
- 238000009835 boiling Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000012279 sodium borohydride Substances 0.000 claims description 9
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 7
- 239000001509 sodium citrate Substances 0.000 claims description 7
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 7
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 7
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 6
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004246 zinc acetate Substances 0.000 claims description 5
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 13
- 239000000969 carrier Substances 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 11
- 239000012467 final product Substances 0.000 description 4
- 239000011258 core-shell material Substances 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000002135 nanosheet Substances 0.000 description 2
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002057 nanoflower Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/02—Oxides; Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- 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
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention provides a preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material, which comprises the following steps: s1, preparing gold nano-particle colloid solution by a wet chemical method; s2, under the constant temperature condition of 25 ℃, adding a zinc oxide precursor solution and a reducing agent solution into the prepared gold nanoparticle colloidal solution, standing for 5-12 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted with the gold nanoparticles. The novel gold nanoparticle-implanted three-dimensional zinc oxide nano-network structure composite material is prepared for the first time, the structure types of the gold nanoparticles and the nano-zinc oxide composite material are enriched, the special three-dimensional network-shaped heterojunction material has larger specific surface area and higher porosity, the separation and migration of photon-generated carriers are accelerated, and the sunlight utilization rate and the photocatalytic degradation performance can be greatly improved.
Description
Technical Field
The invention relates to the field of preparation of gold nanoparticle and semiconductor oxide composite materials, in particular to a preparation method of a three-dimensional zinc oxide nano network material implanted with gold nanoparticles.
Background
The gold nanoparticle and nano zinc oxide composite material has wide application prospects in the fields of environmental monitoring, pollutant degradation, photocatalysis, solar energy utilization and the like, and has great potential. However, at present, the microstructure of such composite materials as nano gold and nano zinc oxide is mainly as follows: a core-shell structure of a gold nanoparticle core wrapped by a nano zinc oxide shell, a nano-sheet structure of nano zinc oxide modified by the gold nanoparticles, a nanoflower structure or a butterfly-shaped structure formed by stacking the gold nanoparticles and the nano zinc oxide, and the like. For example: in ACS Applied Materials&Journal of Interfaces in 2015 7 volume 18 < factory Application to Synthesis Au @ ZnO Core-Shell Nanoparticles and for the Application of high pure Sensitive and Selective Gas Sensors > it was reported that a precursor solution of a composite was first prepared by wet chemistry, the solution was treated at 85 ℃ for 8 hours, purified and dried at 60 ℃ to obtain a purified solutionAnd (3) carrying out heat treatment for 2 hours at 500 ℃ in the air for 12 hours to finally prepare the composite material of the gold nanoparticle core wrapped by the nano zinc oxide shell. It is known that the morphology and microstructure of metal oxide nanomaterials have an important influence on their macroscopic properties, and a particular microstructure generally has particular properties, such as a nano-TiO with a ribbon structure2Nano TiO with spherical structure2Has higher catalytic activity (due to the nano TiO with a strip structure2Exposed<101>The crystal face can improve the reaction capability with oxygen molecules, in TiO2Surface generation of high concentration of O2 -And capture photo-generated electrons in the photocatalytic reaction, thereby greatly reducing the number of hole-photo-generated electron pairs), and for example, the particle size of the CdTe quantum dots is increased from 2.5nm to 4.0nm, and the emission wavelength is red-shifted from 510nm to 660 nm. Therefore, the research and development of the gold nanoparticle and nano zinc oxide composite material with different appearances and novel structures has important significance in the field of nano materials, and the performance of the material can be expected to be improved in some specific fields.
Disclosure of Invention
Aiming at the single structure of the gold nanoparticle and nano zinc oxide composite material prepared by the prior art, the invention aims to provide a preparation method of a three-dimensional zinc oxide nano network material implanted with gold nanoparticles.
The technical scheme of the invention is summarized as follows:
a preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing gold nano-particle colloid solution by a wet chemical method;
and S2, adding a zinc oxide precursor solution and a reducing agent solution into the prepared gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 5-12 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted with the gold nanoparticles.
Preferably, the method for preparing the gold nanoparticle colloidal solution by the wet chemical method comprises the following steps:
adding 0.5mL of chloroauric acid solution with the mass fraction of 1% into 48mL of boiling water, slightly stirring for 10 minutes, quickly adding 1.5mL of sodium citrate solution with the mass fraction of 1%, boiling for 30 minutes, and naturally cooling to obtain a gold seed solution;
for the growth of gold seeds, 2mL of tris (hydroxymethyl) aminomethane solution with a concentration of 0.1moL/L was added to 47.6mL of boiling water, and during the stirring, 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with a mass fraction of 1% were added thereto, and then heated until the solution turned brick red, to prepare a gold nanoparticle colloidal solution.
Preferably, the zinc oxide precursor solution is one of a zinc acetate solution, a zinc nitrate solution and a zinc chloride solution.
Preferably, the mass fraction of the zinc oxide precursor solution is 1%.
Preferably, the reducing agent solution is a sodium borohydride solution.
Preferably, the mass fraction of the reducing agent solution is 1%.
Preferably, the volume ratio of the gold nanoparticle colloid solution, the zinc oxide precursor solution and the reducing agent solution is 50: (0.1-1.5): (0.5 to 7.5)
Preferably, the volume ratio of the zinc oxide precursor solution to the reducing agent solution is 1: 5.
the invention has the beneficial effects that:
(1) according to the invention, a zinc oxide precursor solution and a sodium borohydride solution are dispersed in a gold nanoparticle colloidal solution for the first time, and a novel composite material with a three-dimensional zinc oxide nano-network structure, in which gold nanoparticles are implanted, is prepared under the reduction action of sodium borohydride, so that the structural types of the gold nanoparticles and the nano-zinc oxide composite material are enriched; compared with the traditional composite material with a nanogold-zinc oxide structure, such as a core-shell structure, a nanosheet structure and the like, the special nanogold-zinc oxide three-dimensional network-shaped heterojunction material has a larger specific surface area and higher porosity, separation and migration of photon-generated carriers are accelerated, and the sunlight utilization rate and the photocatalytic degradation performance can be greatly improved.
(2) The method has the advantages of mild reaction conditions, no need of high-temperature heating, low energy consumption, simple and easy operation and convenience for large-scale industrial production.
Drawings
Fig. 1 is an SEM scanning electron microscope image and a schematic structural view of the three-dimensional zinc oxide nano network material implanted with gold nanoparticles prepared in example 3;
FIG. 2 is SEM scanning electron microscope image and object image of gold nanoparticle colloidal solution prepared by wet chemical method;
FIG. 3 is a flow chart of the preparation method of the three-dimensional zinc oxide nano-network material implanted by gold nanoparticles.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
Example 1
A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing the gold nanoparticle colloid solution by a wet chemical method:
adding 0.5mL of 1% chloroauric acid solution into 48mL of boiling water, stirring for 10 min, rapidly adding 1.5mL of 1% sodium citrate solution, boiling for 30 min, and naturally cooling to obtain the final product with particle size of 17nm and particle number concentration of 9.1 × 1011each.mL-1The gold seed solution of (1);
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1moL/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, and heating until the solution turns brick red to prepare gold nanoparticle colloidal solution;
s2, adding 0.1mL of 1% zinc acetate solution and 0.5mL of 1% sodium borohydride solution into 50mL of gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 5 hours until the reaction is completed, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted by the gold nanoparticles.
Example 2
A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing the gold nanoparticle colloid solution by a wet chemical method:
adding 0.5mL of 1% chloroauric acid solution into 48mL of boiling water, stirring gently for 10 min, rapidly adding 1.5mL of 1% sodium citrate solution, boiling for 30 min, and naturally cooling to obtain the final product with particle diameter of 17nm and particle number concentration of 9.1 × 1011each.mL-1The gold seed solution of (1);
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1moL/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, and heating until the solution turns brick red to prepare gold nanoparticle colloidal solution;
s2, under the constant temperature condition of 25 ℃, adding 0.3mL of zinc nitrate solution with the mass fraction of 1% and 1.5mL of sodium borohydride solution with the mass fraction of 1% into 50mL of gold nanoparticle colloidal solution, standing for 6 hours until the reaction is completed, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted by the gold nanoparticles.
Example 3
A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing the gold nanoparticle colloid solution by a wet chemical method:
adding 0.5mL of 1% chloroauric acid solution into 48mL of boiling water, stirring for 10 min, rapidly adding 1.5mL of 1% sodium citrate solution, boiling for 30 min, and naturally cooling to obtain the final product with particle size of 17nm and particle number concentration of 9.1 × 1011each.mL-1The gold seed solution of (1);
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1moL/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, and heating until the solution turns brick red to prepare gold nanoparticle colloidal solution;
s2, adding 0.5mL of 1% zinc acetate solution and 2.5mL of 1% sodium borohydride solution into 50mL of gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 8 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted by the gold nanoparticles.
Example 4
A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing the gold nanoparticle colloid solution by a wet chemical method:
adding 0.5mL of 1% chloroauric acid solution into 48mL of boiling water, stirring for 10 min, rapidly adding 1.5mL of 1% sodium citrate solution, boiling for 30 min, and naturally cooling to obtain the final product with particle size of 17nm and particle number concentration of 9.1 × 1011each.mL-1The gold seed solution of (1);
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1moL/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, and heating until the solution turns brick red to prepare gold nanoparticle colloidal solution;
s2, adding 0.8mL of 1% zinc chloride solution and 4.0mL of 1% sodium borohydride solution into 50mL of gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 10 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted with the gold nanoparticles.
Example 5
A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material comprises the following steps:
s1, preparing the gold nanoparticle colloid solution by a wet chemical method:
adding 0.5mL of boiling waterSlightly stirring for 10 min in a 1% chloroauric acid solution, rapidly adding 1.5mL sodium citrate solution with a mass fraction of 1%, boiling for 30 min, and naturally cooling to obtain a solution with a particle size of 17nm and a particle number concentration of 9.1 × 1011each.mL-1The gold seed solution of (1);
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1moL/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, and heating until the solution turns brick red to prepare gold nanoparticle colloidal solution;
s2, adding 1.0mL of 1% zinc acetate solution and 5.0mL of 1% sodium borohydride solution into 50mL of gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 12 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted by the gold nanoparticles.
Fig. 1 is an SEM scanning electron microscope image and a schematic structural view of the three-dimensional zinc oxide nano-network material implanted with gold nanoparticles prepared in example 3: as can be seen from the figure, the gold nanoparticles are embedded in the three-dimensional zinc oxide nano network structure, so that the specific surface area of the gold nanoparticle/nano zinc oxide composite material is greatly improved, and the porosity is higher.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (3)
1. A preparation method of a gold nanoparticle implanted three-dimensional zinc oxide nano network material is characterized by comprising the following steps:
s1, preparing gold nano-particle colloid solution by a wet chemical method;
s2, adding a zinc oxide precursor solution and a reducing agent solution into the prepared gold nanoparticle colloidal solution at a constant temperature of 25 ℃, standing for 5-12 hours until the reaction is complete, and performing centrifugal purification to obtain the three-dimensional zinc oxide nano network material implanted with the gold nanoparticles;
the method for preparing the gold nanoparticle colloidal solution by the wet chemical method comprises the following steps:
adding 0.5mL of chloroauric acid solution with the mass fraction of 1% into 48mL of boiling water, slightly stirring for 10 minutes, quickly adding 1.5mL of sodium citrate solution with the mass fraction of 1%, boiling for 30 minutes, and naturally cooling to obtain a gold seed solution;
for the growth of gold seeds, adding 2mL of tris (hydroxymethyl) aminomethane solution with the concentration of 0.1mol/L into 47.6mL of boiling water, adding 0.1mL of gold seed solution and 0.3mL of chloroauric acid solution with the mass fraction of 1% into the boiling water during stirring, heating the solution until the solution turns into brick red, and naturally cooling the solution to obtain gold nanoparticle colloidal solution;
the volume ratio of the gold nanoparticle colloid solution to the zinc oxide precursor solution to the reducing agent solution is 50: (0.1-1.5): (0.5 to 7.5); the volume ratio of the zinc oxide precursor solution to the reducing agent solution is 1: 5; the mass fraction of the zinc oxide precursor solution is 1%; the mass fraction of the reducing agent solution is 1%.
2. The method for preparing a gold nanoparticle-implanted three-dimensional zinc oxide nano-network material according to claim 1, wherein the zinc oxide precursor solution is one of a zinc acetate solution, a zinc nitrate solution and a zinc chloride solution.
3. The method for preparing a gold nanoparticle implanted three-dimensional zinc oxide nano-network material according to claim 1, wherein the reducing agent solution is a sodium borohydride solution.
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| CN102774874A (en) * | 2012-06-12 | 2012-11-14 | 东北大学秦皇岛分校 | Novel preparation method of nano-zinc oxide |
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