CN1302882C - Method for preparing nano gold solution - Google Patents
Method for preparing nano gold solution Download PDFInfo
- Publication number
- CN1302882C CN1302882C CNB2004100892522A CN200410089252A CN1302882C CN 1302882 C CN1302882 C CN 1302882C CN B2004100892522 A CNB2004100892522 A CN B2004100892522A CN 200410089252 A CN200410089252 A CN 200410089252A CN 1302882 C CN1302882 C CN 1302882C
- Authority
- CN
- China
- Prior art keywords
- solution
- nano
- gold
- hydrazine hydrate
- aurum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention discloses a method for preparing nano-aurum solution, which comprises the following steps: 1) chloroauric acid is added into deionized water, after the chloroauric acid is dissolved, polyvinylpyrrolidone and sodium dodecyl sulfate are added into the water, and the mass concentrations of the chloroauric acid, the polyvinylpyrrolidone and the sodium dodecyl sulfate are respectively 0.01 to 1.0%, 0.02 to 2.0% and 0.0001 to 1.0%; 2) hydrazine hydrate water solution of which the concentration is 0.01 to 0.5% is added into the mixed solution in step 1) when a user stirs the mixed solution at room temperature, when the pH value reaches 6.8 to 7.0, adding of the hydrazine hydrate water solution is stopped, then the user keeps stirring for 20 to 30 minutes, and finally the nano-aurum solution is obtained. The present invention has the advantages that the preparing process is performed at room temperature, the preparing technique is simple, the granularity of the nano aurum inside the nano-aurum solution is 10 to 100 nm, and the aurum particles are small and are not easy to precipitate.
Description
Technical field
The present invention relates to prepare the method for nano-Au solution.
Background technology
Nm of gold has a wide range of applications at numerous areas such as medical treatment, health care, biochemical industries, thereby is paid much attention to.Nm of gold has air-cleaning function, can be used as the nm of gold catalyst.Nano-Au solution can be sprayed on various material surfaces, as metal, plastics, pottery, cloth and textile etc.At present, the reduction method for preparing nanometer gold solution of employing need be at 70 ℃ so that carry out under the higher temperature.
Summary of the invention
The object of the present invention is to provide a kind of method that at room temperature prepares nano-Au solution.
The method for preparing nano-Au solution of the present invention, its step is as follows:
1) in deionized water, adds gold chloride (HAuCl
44H
2O), treat that gold chloride dissolving back adds polyvinylpyrrolidone, lauryl sodium sulfate, the mass concentration of gold chloride, polyvinylpyrrolidone and lauryl sodium sulfate is respectively 0.01～1.0%, 0.02～2.0% and 0.0001～1.0%;
2) under the room temperature, in stirring be that 0.01～0.5% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 6.8～7.0, stop to add hydrazine hydrate aqueous solution, continue to stir 20～30 minutes, obtain nano-Au solution concentration.
Advantage of the present invention is: preparation is at room temperature carried out, and technology is simple, and the granularity of nm of gold is 10 to 100nm in the nano-Au solution, and gold particle is little, the difficult precipitation.
Description of drawings
Fig. 1 is the X-ray diffractogram that the nano-Au solution for preparing under the room temperature is taken after 80 ℃ of oven dry, has only the diffraction maximum of gold among the figure, and " * " number marked golden diffraction maximum among the figure, and the average diameter of gold particle is 15nm.
Fig. 2 is the electronic microscopic image of the nm of gold for preparing under the room temperature, and the average diameter of gold particle is 18nm, and upper right corner illustration is the electron diffraction diagram of gold particle among the figure.
Fig. 3 is the X-ray diffractogram that the nano-Au solution for preparing under the room temperature is taken after 85 ℃ of oven dry, and " * " number marked golden diffraction maximum among the figure, and the average diameter of gold particle is 20nm, and the diffraction maximum that does not mark among the figure is a hydrazine sulfate.
The specific embodiment
Embodiment 1
1) with 0.1g gold chloride (HAuCl
44H
2O) join in the 250ml deionized water, treat that gold chloride dissolving back adds 0.2g polyvinylpyrrolidone and 0.0001g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.05% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0, stop to add hydrazine hydrate aqueous solution, continue to stir 20 minutes, obtain gold content and be 0.019% nano-Au solution concentration;
Fig. 1 is the X-ray diffractogram that the nano-Au solution that makes is taken after 80 ℃ of oven dry, has only the diffraction maximum of gold among the figure, and " * " number marked golden diffraction maximum among the figure, and the average diameter of gold particle is 15nm.
Embodiment 2
1) with 0.1g gold chloride (HAuCl
44H
2O) join in the 250ml deionized water, treat that gold chloride dissolving back adds 0.1g polyvinylpyrrolidone and 0.1g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.05% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0, stop to add hydrazine hydrate aqueous solution, continue to stir 20 minutes, obtain gold content and be 0.019% nano-Au solution concentration;
Fig. 2 is the electronic microscopic image of the nm of gold that makes, and the average diameter of gold particle is 18nm, and upper right corner illustration is the electron diffraction diagram of gold particle among the figure;
Fig. 3 is the X-ray diffractogram that nano-Au solution is taken after 85 ℃ of oven dry, is made up of gold, sodium chloride and a small amount of hydrazine sulfate, and " * " number marked golden diffraction maximum among the figure, and the average diameter of gold particle is 20nm, and the diffraction maximum that does not mark among the figure is a hydrazine sulfate.
Embodiment 3
1) with 0.3g gold chloride (HAuCl
44H
2O) join in the 50ml deionized water, treat that gold chloride dissolving back adds 0.2g polyvinylpyrrolidone, 0.1g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.2% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0 with concentration, stop to add hydrazine hydrate aqueous solution, continue to stir 25 minutes, and obtained gold content and be 0.29% nano-Au solution, the average diameter of gold particle is 22nm.
Embodiment 4
1) with 0.06g gold chloride (HAuCl
44H
2O) join in the 250ml deionized water, treat that gold chloride dissolving back adds 0.01g polyvinylpyrrolidone, 0.0001g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.1% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0 with concentration, stop to add hydrazine hydrate aqueous solution, continue to stir 20 minutes, and obtained gold content and be 0.01% nano-Au solution, the average diameter of gold particle is 17nm.
Embodiment 5
1) with 0.6g gold chloride (HAuCl
44H
2O) join in the 50ml deionized water, treat that gold chloride dissolving back adds 1.0g polyvinylpyrrolidone, 0.5g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.05% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0 with concentration, stop to add hydrazine hydrate aqueous solution, continue to stir 30 minutes, and obtained gold content and be 0.57% nano-Au solution, the average diameter of gold particle is 21nm.
Embodiment 6
1) with 0.8g gold chloride (HAuCl
44H
2O) join in the 50ml deionized water, treat that gold chloride dissolving back adds 1.0g polyvinylpyrrolidone, 0.6g lauryl sodium sulfate;
2) under the room temperature, in stirring be that 0.15% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 7.0 with concentration, stop to add hydrazine hydrate aqueous solution, continue to stir 30 minutes, and obtained gold content and be 0.76% nano-Au solution, the average diameter of gold particle is 25nm.
Claims (1)
1. the method for preparing nano-Au solution is characterized in that step is as follows:
1) in deionized water, adds gold chloride, treat that gold chloride dissolving back adds polyvinylpyrrolidone, lauryl sodium sulfate, the mass concentration of gold chloride, polyvinylpyrrolidone and lauryl sodium sulfate is respectively 0.01～1.0%, 0.02～2.0% and 0.0001～1.0%;
2) under the room temperature, in stirring be that 0.01～0.5% hydrazine hydrate aqueous solution joins in the mixed solution of step 1), when the pH value reaches 6.8～7.0, stop to add hydrazine hydrate aqueous solution, continue to stir 20～30 minutes, obtain nano-Au solution concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100892522A CN1302882C (en) | 2004-12-02 | 2004-12-02 | Method for preparing nano gold solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100892522A CN1302882C (en) | 2004-12-02 | 2004-12-02 | Method for preparing nano gold solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1663714A CN1663714A (en) | 2005-09-07 |
| CN1302882C true CN1302882C (en) | 2007-03-07 |
Family
ID=35035130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100892522A Expired - Fee Related CN1302882C (en) | 2004-12-02 | 2004-12-02 | Method for preparing nano gold solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302882C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425372C (en) * | 2005-09-09 | 2008-10-15 | 吉林大学 | Preparation method of monodisperse gold nanometer particle for immunological chromatography test |
| WO2015125980A1 (en) * | 2014-02-21 | 2015-08-27 | Kim Il Sung University | Nanogold injection and its manufacturing method |
| CN105033281B (en) * | 2015-08-27 | 2017-10-20 | 华南理工大学 | A kind of preparation method of simple environment protection type nanogold particle solution |
| CN109811545A (en) * | 2017-11-21 | 2019-05-28 | 广州泓一生物科技有限公司 | A kind of nanogold softener and preparation method thereof |
| CN107965263A (en) * | 2017-12-21 | 2018-04-27 | 大连轶德科技有限公司 | Multifunctional sanitary environmental protection screen window and preparation method thereof |
| CN108941612A (en) * | 2018-09-27 | 2018-12-07 | 天津工业大学 | A kind of preparation method for the small particle gold nanoparticle that size is controllable |
| CN113351876A (en) * | 2021-04-21 | 2021-09-07 | 南京大学 | Method for preparing water-soluble nano gold |
| CN115501917A (en) * | 2022-11-01 | 2022-12-23 | 航天科工(长沙)新材料研究院有限公司 | Nano gold catalyst and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261565A (en) * | 1999-01-21 | 2000-08-02 | 中国科学技术大学 | Method for preparing nanometre metal cobalt powder or nickel powder |
| US6117366A (en) * | 1997-07-23 | 2000-09-12 | Samsung Display Devices Co., Ltd. | Electrically conductive composition including metal particles |
| CN1273154A (en) * | 2000-04-28 | 2000-11-15 | 南京大学 | Nm-class gold powder and its preparing process |
| CN1513631A (en) * | 2003-07-15 | 2004-07-21 | 武汉大学 | Preparation method of nano-gold particle |
| KR20040081215A (en) * | 2003-03-14 | 2004-09-21 | 한국화학연구원 | Method for making super-fine metal particle solution with high concentration |
| CN1530402A (en) * | 2003-03-11 | 2004-09-22 | 中国科学院固体物理研究所 | Nano gold/porous silicon dioxide copmosite body and its preparation |
-
2004
- 2004-12-02 CN CNB2004100892522A patent/CN1302882C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117366A (en) * | 1997-07-23 | 2000-09-12 | Samsung Display Devices Co., Ltd. | Electrically conductive composition including metal particles |
| CN1261565A (en) * | 1999-01-21 | 2000-08-02 | 中国科学技术大学 | Method for preparing nanometre metal cobalt powder or nickel powder |
| CN1273154A (en) * | 2000-04-28 | 2000-11-15 | 南京大学 | Nm-class gold powder and its preparing process |
| CN1530402A (en) * | 2003-03-11 | 2004-09-22 | 中国科学院固体物理研究所 | Nano gold/porous silicon dioxide copmosite body and its preparation |
| KR20040081215A (en) * | 2003-03-14 | 2004-09-21 | 한국화학연구원 | Method for making super-fine metal particle solution with high concentration |
| CN1513631A (en) * | 2003-07-15 | 2004-07-21 | 武汉大学 | Preparation method of nano-gold particle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1663714A (en) | 2005-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1302882C (en) | Method for preparing nano gold solution | |
| CN1299865C (en) | Preparation method of nuclear shell structured nano-gold copper powder | |
| CN110115272B (en) | Cu nanoparticle coupled graphene hydrogel composite material and preparation method and application thereof | |
| CN1837043A (en) | Rare earth particle and montmorillonite nano composite materials and process for preparing same | |
| Yang et al. | Dextran-controlled crystallization of silver microcrystals with novel morphologies | |
| CN107413354B (en) | Preparation method of silver-loaded copper oxide nanocomposite | |
| CN1281126C (en) | Nanometer silver antiseptic powder preparation method | |
| CN107200392A (en) | A kind of sulfide modifier Fe Cu bimetallic materials, preparation method and the method for removing chromate waste water | |
| CN1942271A (en) | Method for producing composite particles | |
| CN1850602A (en) | Method for preparing magnetic granule-attapulgite nano composite material | |
| CN1850621A (en) | Method for preparing bismuth oxide nano powder | |
| CN1286890C (en) | Nano solid magnetic ion exchange resin ball and method for preparing same | |
| CN106614551A (en) | Porous graphene silver-loaded/titanium dioxide antibacterial composite and preparation method thereof | |
| Xu et al. | Direct growth and shape control of Cu2O film via one-step chemical bath deposition | |
| CN1861298A (en) | Method for preparing cube shaped copper particles | |
| CN101073830A (en) | Gelatin-silver nano-material, its production and use | |
| CN1733611A (en) | Zirconium dioxide nano powder material preparation method | |
| CN1861299A (en) | Method for preparing hollow ball shaped copper particles | |
| Gao et al. | Bioinspired synthesis of hierarchically micro/nano-structured CuI tetrahedron and its potential application as adsorbent for Cd (II) with high removal capacity | |
| KR100732394B1 (en) | The menufacture method of metal nano paticle | |
| WO2024087551A1 (en) | Method for preparing silver nanowires using soft template method | |
| CN106378111A (en) | Magnetic Fe3O4/PMMA nano composite adsorbent with core-shell structure and preparation method thereof | |
| CN1155448C (en) | Nm-class gold powder and its preparing process | |
| CN1317192C (en) | Method for preparing superfine zinc oxide and crystal whisker of zinc oxide | |
| CN1302849C (en) | Method for preparing supported nano gold powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HUASHI NANO MATERIALS CO., LTD. Free format text: FORMER OWNER: HUANG DEHUAN Effective date: 20080404 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080404 Address after: A building, Xin Mei Industrial Zone, No. 260 Lian Cao Road, Shanghai, Minhang District Patentee after: Shanghai Huashi Nano Material Co., Ltd. Address before: Room 13, No. 288, Lane 301, Macao Road, Shanghai, Putuo District Patentee before: Huang Dehuan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20111202 |