CN103084580A - Method for synthesizing water-solubility fluorescence silver nanocluster by electrochemistry - Google Patents
Method for synthesizing water-solubility fluorescence silver nanocluster by electrochemistry Download PDFInfo
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- CN103084580A CN103084580A CN2013100094451A CN201310009445A CN103084580A CN 103084580 A CN103084580 A CN 103084580A CN 2013100094451 A CN2013100094451 A CN 2013100094451A CN 201310009445 A CN201310009445 A CN 201310009445A CN 103084580 A CN103084580 A CN 103084580A
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Abstract
A method for synthesizing water-solubility fluorescence silver nanocluster by electrochemistry comprises the following steps: (1) preparing coordination agent, mass percentage concentration of the coordination agent in solution is 0.35% to 2%; (2) using acid solution to adjust potential of hydrogen (PH) of reaction system to be 6 to 8; and (3) using two pure silver bars as electrodes, interval between the electrodes are 8mm to 10mm, enabling direct current stabilized power supply to be conducted electrolytic reaction for 2min to 10min and obtaining fluorescence silver nanocluster water solution, wherein the reaction voltage is 4V to 8V. The method for synthesizing the water-solubility fluorescence silver nanocluster by the electrochemistry has the advantages of being simple in operation, easy to control, low in cost, fast in synthesizing, environment-friendly, and the like. The prepared water-solubility silver nanocluster has a fluorescence characteristic.
Description
Technical field
The present invention relates to the preparing technical field of fluorescent nano material, relate in particular to a kind of electrochemical method for synthesizing of water soluble fluorescence ag nano-cluster.
Background technology
Fluorescent material has widely aspect a lot of in biological diagnosis, cell marking, imaging etc. to be used, but what use at present is mainly still traditional organic fluorescent dye, in addition, also has the fluorescence quantum material.The shortcomings such as it is large that organic fluorescent dye has toxicity, and anti-fluorescent bleach is poor.And equally also there is the larger problem of toxicity in quantum dot, and particle is larger, carries out the aspects such as mark and has some problems entering cell.In recent years, the noble metal nano cluster with fluorescent functional had received increasing concern, and was considered to be expected to replace or the present fluorescent material of using of part replacement.Compare with the conventional fluorescent material, ag nano-cluster not only has the characteristics that emission spectrum is narrow, the Stock position is large, and have maximum emission wavelength can be according to the cluster size adjustment, be difficult for the characteristics such as photodissociation, anti-fluorescent bleach ability is strong, size is extra small, be therefore a kind of fluorescent nano material that has potentiality.The preparation method of water soluble fluorescence ag nano-cluster mainly contains photoreduction met hod, chemical reduction method, ultrasonic reducing process, Microwave reduction method etc. at present.Synthetic and the stability fast of water soluble fluorescence ag nano-cluster is people's problems of concerns.Electrochemistry has obvious advantage for nanometer is synthetic, can synthesize fast all certain nanoclusters of pattern.At present, prepare the water soluble fluorescence ag nano-cluster by electrochemical method and yet there are no report.
Summary of the invention
The technical problem that solves:A kind of method that the purpose of this invention is to provide electrochemistry synthesizing water-solubility fluorescence ag nano-cluster.
Technical scheme:A kind of method of electrochemistry synthesizing water-solubility fluorescence ag nano-cluster comprises the following steps:
Step 1. preparation complexant, in solution, the mass percentage concentration of complexant is 0.35%-2%;
Step 2. uses the pH of acid solution conditioned reaction system to 6-8;
Step 3. is done electrode with two diameter 3mm fine silver rods, and electrode spacing is 8-10mm, and D.C. regulated power supply room temperature cell reaction 2-10min namely obtains the fluorescence ag nano-cluster aqueous solution, and response voltage is 4-8V.
Described acid solution is acetic acid or nitric acid.
Described complexant is sodium polymethacrylate (M
w: 9500), polyacrylic acid, oligonucleotides or bovine serum albumin(BSA).
Above-mentioned method for making, the prepared fluorescence solution of step 3, low-temperature dark is preserved.
Response voltage and time can be regulated definite according to the spacing of actual installation electrode.
Beneficial effect:The invention provides a kind of method of electrochemistry synthesizing water-solubility fluorescence ag nano-cluster, simple to operate, easy control that the method has, with low cost, synthetic fast, the advantage such as environmental protection.Prepared water-soluble silver nanocluster has fluorescent characteristic.
Water soluble fluorescence ag nano-cluster of the present invention characterizes through transmission electron microscope (TEM), and result shows that prepared Silver Clusters particle size sees Fig. 2 less than 2nm().Show that by ultraviolet spectrometer the absorption maximum of Silver Clusters is in 500nm left and right (ultraviolet spectrogram is seen Fig. 3), fluorescence spectrum detects the maximum emission wavelength show Silver Clusters in 600nm left and right (see figure 4), can see obvious orange-red light (see figure 1) under UV-irradiation.
Description of drawings
Fig. 1 is the contrast photo of fluorescence ag nano-cluster under visible light and ultraviolet light (365nm);
Fig. 2 is transmission electron microscope (TEM) photo of fluorescence ag nano-cluster;
Fig. 3 is the uv-visible absorption spectra of fluorescence ag nano-cluster;
Fig. 4 is the emission spectrum of fluorescence ag nano-cluster under different excitation wavelengths.
The specific embodiment
Below by specific embodiment, method of the present invention is described.Method described in following embodiment if no special instructions, is conventional method; Described reagent and material if no special instructions, all can obtain from commercial channels.
Embodiment 1
Under room temperature, the sodium polymethacrylate (M of preparation 0.35%wt
w: the 9500) aqueous solution, do electrode with two diameter 3mm fine silver rods, spacing 8mm, acetic acid water transfer pH value of solution is electrolysis 10min under 6.76,4V voltage stirring condition, obtains the kermesinus fluorescence ag nano-cluster aqueous solution.The photo of sample under visible light and ultraviolet light as shown in Figure 1, TEM characterizes as shown in Figure 2, UV absorption characterizes as shown in Figure 3, the fluorescence emission spectrum under different excitation wavelengths is as shown in Figure 4.
Embodiment 2
With the sodium polymethacrylate (M in embodiment 1
w: 9500) concentration changes 2%wt into by 0.35%wt, and other conditions of preparation obtain with implementing 1 the product that pattern and character are similar to embodiment 1.
Embodiment 3
Change the response voltage in embodiment 1 into 8V, the reaction time changes 4min into, and other conditions of preparation obtain with implementing 1 the product that pattern and character are similar to embodiment 1.
Embodiment 4
Acetic acid in embodiment 1 is changed to nitric acid, and other conditions of preparation obtain with implementing 1 the product that pattern and character are similar to embodiment 1.
Embodiment 5
PH in embodiment 4 is adjusted to 7.66, voltage 6V, the reaction time is 6min, other conditions of preparation obtain with embodiment 4 product that pattern and character are similar to embodiment 1.
Claims (3)
1. the method for an electrochemistry synthesizing water-solubility fluorescence ag nano-cluster, is characterized in that comprising the following steps:
Step 1. preparation complexant, in solution, the mass percentage concentration of complexant is 0.35%-2%;
Step 2. uses the pH of acid solution conditioned reaction system to 6-8;
Step 3. is done electrode with two diameter 3mm fine silver rods, and electrode spacing is 8-10mm, and D.C. regulated power supply room temperature cell reaction 2-10min namely obtains the fluorescence ag nano-cluster aqueous solution, and response voltage is 4-8V.
2. the method for electrochemistry synthesizing water-solubility fluorescence ag nano-cluster according to claim 1, is characterized in that described acid solution is acetic acid or nitric acid.
3. the method for electrochemistry synthesizing water-solubility fluorescence ag nano-cluster according to claim 1, is characterized in that described complexant is sodium polymethacrylate (M
w: 9500), polyacrylic acid, oligonucleotides or bovine serum albumin(BSA).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588645A (en) * | 2015-02-04 | 2015-05-06 | 山西大学 | Silver nanometer cluster compound with antibacterial activity and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614067A (en) * | 1994-12-07 | 1997-03-25 | Omco Co., Ltd. | Leaching device for electrolyzed silver |
| US20050092132A1 (en) * | 2001-10-29 | 2005-05-05 | Yoshihiro Hirata | Method and apparatus for the production of metal powder |
| CN101225533A (en) * | 2007-10-17 | 2008-07-23 | 楚雄师范学院 | Electrolytic preparation method of high-activity long-life electrically positive colloid nano silver |
| CN101722313A (en) * | 2009-12-16 | 2010-06-09 | 蒋伟平 | Nanometer silver solution, method for preparing same and application thereof |
| CN101947654A (en) * | 2010-09-16 | 2011-01-19 | 南京大学 | Method for producing water-soluble fluorescent silver nanoclusters |
| CN102181885A (en) * | 2011-04-07 | 2011-09-14 | 东南大学 | Method for preparing nano silver solution by electrolysis |
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2013
- 2013-01-11 CN CN2013100094451A patent/CN103084580A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614067A (en) * | 1994-12-07 | 1997-03-25 | Omco Co., Ltd. | Leaching device for electrolyzed silver |
| US20050092132A1 (en) * | 2001-10-29 | 2005-05-05 | Yoshihiro Hirata | Method and apparatus for the production of metal powder |
| CN101225533A (en) * | 2007-10-17 | 2008-07-23 | 楚雄师范学院 | Electrolytic preparation method of high-activity long-life electrically positive colloid nano silver |
| CN101722313A (en) * | 2009-12-16 | 2010-06-09 | 蒋伟平 | Nanometer silver solution, method for preparing same and application thereof |
| CN101947654A (en) * | 2010-09-16 | 2011-01-19 | 南京大学 | Method for producing water-soluble fluorescent silver nanoclusters |
| CN102181885A (en) * | 2011-04-07 | 2011-09-14 | 东南大学 | Method for preparing nano silver solution by electrolysis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588645A (en) * | 2015-02-04 | 2015-05-06 | 山西大学 | Silver nanometer cluster compound with antibacterial activity and preparation method thereof |
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Application publication date: 20130508 |