CN1513631A - A kind of preparation method of gold nanoparticle - Google Patents
A kind of preparation method of gold nanoparticle Download PDFInfo
- Publication number
- CN1513631A CN1513631A CNA031283284A CN03128328A CN1513631A CN 1513631 A CN1513631 A CN 1513631A CN A031283284 A CNA031283284 A CN A031283284A CN 03128328 A CN03128328 A CN 03128328A CN 1513631 A CN1513631 A CN 1513631A
- Authority
- CN
- China
- Prior art keywords
- aqueous solution
- preparation
- nitromethane
- gold
- mol
- 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.)
- Granted
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000010931 gold Substances 0.000 title claims abstract description 14
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 14
- 239000002105 nanoparticle Substances 0.000 title claims abstract 5
- 238000002360 preparation method Methods 0.000 title claims description 16
- 239000007864 aqueous solution Substances 0.000 claims abstract description 23
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 claims abstract description 13
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 1
- SJUCACGNNJFHLB-UHFFFAOYSA-N O=C1N[ClH](=O)NC2=C1NC(=O)N2 Chemical compound O=C1N[ClH](=O)NC2=C1NC(=O)N2 SJUCACGNNJFHLB-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- JAJIPIAHCFBEPI-UHFFFAOYSA-N 9,10-dioxoanthracene-1-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)O JAJIPIAHCFBEPI-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Catalysts (AREA)
Abstract
A process for preparing the gold nanoparticles features that the chlorauric acid or gold chloride is added to the alkaline aqueous solution of nitromethane to obtain the aqueous sol of gold nanoparticles. Its advantages are adjustable granularity, high speed and low cost.
Description
Technical field
The present invention relates to a kind of preparation method of golden nanometer particle.
Background technology
Golden nanometer particle has important use in a plurality of fields such as catalysis, electronics and optics, biotechnologys.With the catalytic field is example, and gold did not have very high activity originally as catalyst, and the size that can work as gold particle is during less than 10nm, and its catalytic activity but has surprising raising, and a lot of oxidations and reduction reaction are shown high catalytic performance.For example, α-Fe
2O
3Or TiO
2The nano catalyst that supports is oxidized to CO to CO
2This important reaction has high catalytic activity, just can make the CO complete oxidation under-70 ℃ of conditions.
Preparation method about golden nanometer particle; though existing many reports; but these methods generally need use a large amount of polymer or special chemical reagent (as long-chain mercaptan or long-chain amine) to make protective agent; the reducing agent (as sodium borohydride) that the employing that has is more expensive, and preparation process mostly needs more step.
Summary of the invention
The present invention is directed to the problems referred to above, propose a kind of preparation method of golden nanometer particle, this method is not only simple, and uses cheap chemical reagent (except the essential chlorauride), thereby preparation cost is lower.
Technical scheme provided by the invention is: a kind of preparation method of golden nanometer particle, the aqueous solution that in the alkaline aqueous solution of nitromethane, adds chlorauride or gold chloride, perhaps, can obtain the gold particle of nano-scale with the mixed aqueous solution furnishing alkalescence of nitromethane and chlorauride or gold chloride.
Above-mentioned alkalescence is that the pH value is greater than 7.The method of above-mentioned furnishing alkalescence is the aqueous solution that adds NaOH or potassium hydroxide or sodium carbonate or potash in solution.The aqueous solution of the aqueous solution of the used nitromethane of the present invention and chlorauride or gold chloride can be in that arbitrarily concentration and ratio hybrid reaction obtain the gold particle of nano-scale.But the concentration of the aqueous solution of used nitromethane is preferably 10
-6Mol/l to 10mol/l; The concentration of the aqueous solution of chlorauride or gold chloride is preferably 10
-6Mol/l to 1mol/l.
The size of the prepared gold particle of the present invention is relevant with the pH value of the ratio of golden salt/nitromethane and solution, and the ratio of golden salt/nitromethane or pH value are high more, and the size of gold particle is big more.
Advantage of the present invention is: preparation process is very simple, and reaction is quick, and the reaction condition gentleness is only used a small amount of cheap chemical reagent (except that essential golden salt), and its preparation cost is lower.And gained gold particle size can be by regulating golden salt/nitromethane ratio or the pH value of solution regulate and control.
Description of drawings
Fig. 1 is preparation flow figure of the present invention;
Fig. 2, Fig. 3 throw electromicroscopic photograph for the high-resolution of the different size gold particle that the present invention makes.
The specific embodiment
Referring to Fig. 1, with HAuCl
4Add alkaline CH
3NO
2The aqueous solution is example, with 0.6 μ l CH
3NO
2Be dissolved in 5ml distilled water and make the nitromethane aqueous solution, stir the 1mol/l NaOH or the KOH aqueous solution that add 20 μ l, the pH value of solution is 11.06, stirs the HAuCl that adds 25 μ L24mmol/l after 2 minutes
4The aqueous solution promptly has obvious color to change in the several seconds, the hydrosol of the golden nanometer particle of the light brown that obtained in 30 minutes is stirred in continuation.
Adopt said method, the pH value that changes solution can obtain the hydrosol of different colours.When the volume that for example adds the 1mol/l NaOH aqueous solution is respectively 20 μ l, 40 μ l, 60 μ l and 80 μ l, the pH value of solution is respectively 11.06,11.82,12.26,12.43, and that the color of the hydrosol of the golden nanometer particle that makes thus is followed successively by is orange, red, purple and blueness.
The color of the colloidal sol of metal nanoparticle and the size and dimension of metallic are closely related.The pH value is micro-(HRTEM) image of high-resolution projection electron such as Fig. 2, shown in Figure 3 of the gold particle for preparing under above-mentioned 11.06 and 11.82 conditions, and Fig. 2, Fig. 3 correspond respectively to the golden nanometer particle hydrosol that obtains behind the adding gold chloride in pH=11.06,11.82 the nitromethane aqueous solution; Its size is respectively 1～2nm and 6～7nm.
Above-mentioned HAuCl
4The aqueous solution replaces obtaining similar result with the chlorauride aqueous solution.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128328 CN1260025C (en) | 2003-07-15 | 2003-07-15 | Preparation method of nano-gold particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128328 CN1260025C (en) | 2003-07-15 | 2003-07-15 | Preparation method of nano-gold particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513631A true CN1513631A (en) | 2004-07-21 |
| CN1260025C CN1260025C (en) | 2006-06-21 |
Family
ID=34239720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03128328 Expired - Fee Related CN1260025C (en) | 2003-07-15 | 2003-07-15 | Preparation method of nano-gold particle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260025C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302849C (en) * | 2004-12-02 | 2007-03-07 | 黄德欢 | Method for preparing supported nano gold powder |
| CN1302882C (en) * | 2004-12-02 | 2007-03-07 | 黄德欢 | Method for preparing nano gold solution |
| CN101775647A (en) * | 2010-02-10 | 2010-07-14 | 中国科学院长春应用化学研究所 | Gold nano-crystal and preparation method thereof |
| CN101725034B (en) * | 2009-12-10 | 2011-08-31 | 东华大学 | Method for preparing Au-modified TiO2 composite air-purifying functional fabric in situ at low temperature |
| CN102189269A (en) * | 2011-04-29 | 2011-09-21 | 上海交通大学 | Method for preparing Au nanoparticles with chloroplast as template in water phase mode |
| CN102266946A (en) * | 2011-07-27 | 2011-12-07 | 厦门大学 | Method for preparing nano-golden particle |
| CN102847951A (en) * | 2012-07-24 | 2013-01-02 | 浙江理工大学 | Process for preparing gold nano particles through reduction of chloroauric acid by catalase |
| CN104907579A (en) * | 2015-06-16 | 2015-09-16 | 江苏大学 | Controllable preparation method for gold nanoparticles induced by polysaccharide derivative |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107283B (en) * | 2010-11-24 | 2013-04-24 | 沈阳工业大学 | Chemical preparation method for gold nanoparticle hydrosols |
-
2003
- 2003-07-15 CN CN 03128328 patent/CN1260025C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302849C (en) * | 2004-12-02 | 2007-03-07 | 黄德欢 | Method for preparing supported nano gold powder |
| CN1302882C (en) * | 2004-12-02 | 2007-03-07 | 黄德欢 | Method for preparing nano gold solution |
| CN101725034B (en) * | 2009-12-10 | 2011-08-31 | 东华大学 | Method for preparing Au-modified TiO2 composite air-purifying functional fabric in situ at low temperature |
| CN101775647A (en) * | 2010-02-10 | 2010-07-14 | 中国科学院长春应用化学研究所 | Gold nano-crystal and preparation method thereof |
| CN101775647B (en) * | 2010-02-10 | 2012-06-20 | 中国科学院长春应用化学研究所 | Gold nano-crystal and preparation method thereof |
| CN102189269A (en) * | 2011-04-29 | 2011-09-21 | 上海交通大学 | Method for preparing Au nanoparticles with chloroplast as template in water phase mode |
| CN102266946A (en) * | 2011-07-27 | 2011-12-07 | 厦门大学 | Method for preparing nano-golden particle |
| CN102847951A (en) * | 2012-07-24 | 2013-01-02 | 浙江理工大学 | Process for preparing gold nano particles through reduction of chloroauric acid by catalase |
| CN102847951B (en) * | 2012-07-24 | 2015-01-28 | 浙江理工大学 | Process for preparing gold nano particles through reduction of chloroauric acid by catalase |
| CN104907579A (en) * | 2015-06-16 | 2015-09-16 | 江苏大学 | Controllable preparation method for gold nanoparticles induced by polysaccharide derivative |
| CN104907579B (en) * | 2015-06-16 | 2017-06-27 | 江苏大学 | A controllable preparation method of polysaccharide derivative-induced gold nanoparticles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260025C (en) | 2006-06-21 |
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