CN107186223A - A kind of method that utilization China pink tea leaching liquor prepares silver nano-grain - Google Patents
A kind of method that utilization China pink tea leaching liquor prepares silver nano-grain Download PDFInfo
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- CN107186223A CN107186223A CN201710361818.XA CN201710361818A CN107186223A CN 107186223 A CN107186223 A CN 107186223A CN 201710361818 A CN201710361818 A CN 201710361818A CN 107186223 A CN107186223 A CN 107186223A
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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
- 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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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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Abstract
The invention provides a kind of method that utilization China pink tea leaching liquor prepares silver nano-grain, comprise the following steps：Step one, China pink tea is soaked in 0.5~2.0h in deionized water at normal temperatures, obtains mixing tea, the mass ratio of China pink tea and deionized water is 1:100~300；Step 2, will be centrifuged after tea blend water filtration, obtains supernatant, as China pink tea leaching liquor；Step 3, aqueous slkali is added into China pink tea leaching liquor, keeps the pH value of reaction system between 7.0~9.0；Step 4, boiling is heated to by the China pink tea leaching liquor in step 3；Step 5, under fluidized state, 0.005~0.012mol/L silver nitrate solution is added into China pink tea leaching liquor, carries out 1~60min of reaction；Step 6, after reaction terminates, obtains reaction solution, reaction solution is centrifuged, obtain sediment；And step 7, sediment is dried and obtains silver nano-grain.The equipment that the preparation method of the present invention is used is simple, and easy to operate, obtained silver nano-grain has good stability and dispersiveness.
Description
Technical field
The invention belongs to technical field of nanometer material preparation, and in particular to one kind prepares silver nanoparticle using China pink tea leaching liquor
The method of particle.
Background technology
The advantages of Nano silver grain is because of its good chemical stability, electric conductivity, high-ductility and inoxidizability, is urged in chemistry
The fields such as change, the energy, printing, electronics and biology have broad application prospects, especially in biomedical aspect, silver nano-grain
With superpower sterilizing ability, pointed out on document, Nano Silver can sterilize species up to more than 650 kinds.In recent years, researcher has found to receive
There is strong surface plasma resonance phenomenon in meter Yin surface, rower can be entered to organism using its unique resonant frequency
Note, so as to reach the purpose of medical science detection.However, during the utilization to silver nano-grain, people gradually have found silver nanoparticle
Particle surface must accomplish it is nontoxic without chemical agent residue can carry out further biologic applications to it, and silver nano-grain
Quality directly depends on synthetic method.
The synthetic method of traditional silver nano-grain can be divided mainly into Physical and chemical method.Physics synthetic method is set to experiment
The requirement of standby and experiment condition is higher, and is difficult to the particle that obtains size uniform.Comparatively, chemical synthesis be it is a kind of more
Ripe synthetic method, mainly including vapour deposition process, liquid phase reduction and electrolysis etc..Wherein, liquid phase reduction apply compared with
To be universal, it is to carry out reduction reaction to silver ion using reducing agent, completes the preparation of silver nano-grain.Chemical synthesis is general
Chemical reagent and dispersant need to be introduced, part chemical reagent is toxic, or even has carcinogenesis.This is unfavorable for Nano Silver in biology
The application of medical domain, and negative impact can be caused to ecological environment.
The content of the invention
The present invention is carried out to solve the above problems, it is therefore intended that is provided one kind and is prepared using China pink tea leaching liquor
The method of silver nano-grain, to solve to prepare present in existing preparation method, cost is high, and energy consumption is big, and stability is poor, is difficult
The technical problem of preservation.
The invention provides a kind of method that utilization China pink tea leaching liquor prepares silver nano-grain, have the feature that,
Comprise the following steps：Step one, China pink tea is soaked in 0.5~2.0h in deionized water at normal temperatures, obtains mixing tea, stone
Bamboo tea and the mass ratio of deionized water are 1:100~300；Step 2, will be centrifuged after tea blend water filtration, obtains
Clear liquid, the supernatant is China pink tea leaching liquor；Step 3, aqueous slkali is added into China pink tea leaching liquor, keeps reaction system
PH value between 7.0~9.0；Step 4, boiling is heated to by the China pink tea leaching liquor in step 3；Step 5, in boiling
Under state, added into China pink tea leaching liquor and reaction 1 is carried out under 0.005~0.012mol/L silver nitrate solution, fluidized state
~60min；Step 6, after reaction terminates, obtains reaction solution, reaction solution is centrifuged, obtain sediment；And step 7,
Sediment is dried and obtains silver nano-grain.
In the utilization China pink tea leaching liquor that the present invention is provided prepares the method for silver nano-grain, can also have such
Feature：Wherein, in step 3, aqueous slkali is potassium hydroxide solution, sodium hydroxide solution or aqua calcis.
In the utilization China pink tea leaching liquor that the present invention is provided prepares the method for silver nano-grain, can also have such
Feature：Wherein, in step 3, the concentration of aqueous slkali is 0.5~2.0mol/L.
In the utilization China pink tea leaching liquor that the present invention is provided prepares the method for silver nano-grain, can also have such
Feature：Wherein, in step 5,5~25min of China pink tea leaching liquor boiling is maintained before silver nitrate solution is added.
In the utilization China pink tea leaching liquor that the present invention is provided prepares the method for silver nano-grain, can also have such
Feature：Wherein, in step 5, silver nitrate solution is added into China pink tea leaching liquor and react and PH during maintenance reaction
Value is between 8.0~8.6.
The effect of invention and effect
The method that silver nano-grain is prepared according to utilization China pink tea leaching liquor involved in the present invention, because being soaked with China pink tea
Silver nano-grain that extract is synthesized as reducing agent is uniform, good dispersion and with higher stability, and inventor is largely trying
Have been surprisingly found that, synthesized nanoparticles are preserved two months at normal temperatures, produced without substantially heavy polymers in testing.In addition, this hair
The equipment that the preparation method of bright provided nano-Ag particles is used is simple, easy to operate, and pollution is not resulted in environment.China pink
Tea leaching liquor is conveniently easy to get, cheap and no toxicity, and the chemical reagent (lemon used in the past is replaced using it as reducing agent
Lemon acid sodium, ascorbic acid, unsaturated alcohol etc.), prepared silver nano-grain surface will not produce toxic chemical residual, silver
Nano particle is uniform, and stability is good, and shows obvious optical signalling, therefore the silver nanoparticle of synthesis can apply to biology
Field of medicaments.
Brief description of the drawings
Fig. 1 is that the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention one shines
Piece；
Fig. 2 is the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention one
Uv-visible absorption spectra (UV-Vis) figure；
Fig. 3 is the transmitted electron of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention one
Microscope (TEM) figure；
Fig. 4 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention one is spread out
Penetrate spectrum (XRD) figure；
Fig. 5 is the reaction solution photo obtained after reaction 2min, 5min, 10min, 15min in embodiments of the invention two；
Fig. 6 is the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention two
Uv-visible absorption spectra (UV-Vis) figure；
Fig. 7 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention two is spread out
Penetrate spectrum (TEM) figure；And
Fig. 8 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention two is spread out
Penetrate spectrum (EDX) figure.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed the method for the invention for preparing silver nano-grain using China pink tea leaching liquor.
<Embodiment one>
Step one, it is 1 in mass ratio by China pink tea (g) and deionized water (mL):100~300 mixing, soak at normal temperatures
0.5~2.0h is steeped, obtains mixing tea.In the present embodiment, China pink tea and the mass ratio of deionized water are 1:100, during immersion
Between be 1h.
Step 2, will mixing tea filtered, after be centrifuged, obtain supernatant, the supernatant is China pink
Tea leaching liquor.
Step 3, silver nitrate crystal is dissolved in deionized water and obtains silver nitrate solution, the material of silver nitrate solution
The concentration of amount is 0.005~0.012mol/L.In the present embodiment, the concentration of the amount of the material of silver nitrate solution is 0.01mol/
L。
Step 4, glass container used is washed with deionized totally, takes 6mL China pink tea leaching liquor to be put into flask
In, after sequentially add 10mL deionized water and 100 μ L aqueous slkalis, maintain the pH value of China pink tea leaching liquor 7.0~9.0 it
Between.Aqueous slkali is potassium hydroxide solution, sodium hydroxide solution or aqua calcis, and the concentration of aqueous slkali is 0.5~2.0mol/
L.In the present embodiment, aqueous slkali is sodium hydroxide solution, and the concentration of the amount of the material of the sodium hydroxide solution is 1mol/L.
Step 5, adds deionized water between 7.0~9.0 by pH value and the China pink tea leaching liquor of sodium hydroxide solution adds
Heat is to seething with excitement, and seethe with excitement 10min, and the pH value for measuring China pink tea leaching liquor is 8.23.
Step 6, under fluidized state, into China pink tea leaching liquor add 0.5mL silver nitrate solution carry out reaction 1~
60min.In the present embodiment, the reaction time is respectively 2 minutes, 5 minutes, 10 minutes, 15 minutes.
Step 7, after reaction terminates, it is respectively 2 minutes, 5 minutes, 10 minutes, 15 minutes anti-to respectively obtain the reaction time
Answer liquid.Four groups of obtained reaction solutions are taken pictures.
Fig. 1 is that the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention one shines
Piece.
As shown in figure 1, photos of Fig. 1 a for the reaction solution of reaction 2 minutes, Fig. 1 b are the photograph of the reaction solution of reaction 5 minutes
Piece, Fig. 1 c are the photo of the reaction solution of reaction 10 minutes, and Fig. 1 d are the photo of the reaction solution of reaction 15 minutes.With the reaction time
Increase, the color of reaction solution gradually deepens, the concentration of obtained silver nano-grain also more and more higher.
Step 8, four groups of reaction solutions are centrifuged, sediment is obtained, sediment is dried and obtains silver nanoparticle
Grain.In the present embodiment, the rotating speed of four groups of reaction solution centrifugations is 10000rpm, and the temperature of drying precipitate is 40~50 DEG C, is done
The dry time is 10min.
Fig. 2 is the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention one
Uv-visible absorption spectra (UV-Vis) figure.
As shown in Fig. 2 the absworption peak that silver nano-grain is produced is in 402nm or so, obvious plasma resonance letter is produced
Number.
Fig. 3 is the transmitted electron of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention one
Microscope (TEM) figure.
As shown in figure 3, can significantly find out that class ball-type is presented in gained silver nano-grain.Remaining 2 minutes, 5 minutes, 15
Sample topography obtained by minute is similar with the silver nano-grain that 10 minutes obtain, and its average diameter is 14nm or so.
Fig. 4 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention one is spread out
Penetrate spectrum (XRD) figure.
As shown in figure 4, being coincide very much with the standard diagram of silver, further illustrate reaction and synthesized silver nano-grain.
<Embodiment two>
Step one, it is 1 in mass ratio by China pink tea (g) and deionized water (mL):100~300 (g/mL) are mixed, normal
Temperature 0.5~2.0h of lower immersion, obtains mixing tea.In the present embodiment, China pink tea and the mass ratio of deionized water are 1:100,
Soak time is 1h.
Step 2, will mixing tea filtered, after be centrifuged, obtain supernatant, the supernatant is China pink
Tea leaching liquor.
Step 3, silver nitrate crystal is dissolved in deionized water and obtains silver nitrate solution, the material of silver nitrate solution
The concentration of amount is 0.005~0.012mol/L.In the present embodiment, the concentration of the amount of the material of silver nitrate solution is 0.01mol/
L。
Step 4, glass container used is washed with deionized totally, takes 6mL China pink tea leaching liquor to be put into flask
In, after sequentially add 10mL deionized water and 100 μ L aqueous slkalis, maintain the pH value of China pink tea leaching liquor 7.0~9.0 it
Between.Aqueous slkali is potassium hydroxide solution, sodium hydroxide solution or aqua calcis, and the concentration of aqueous slkali is 0.5~2.0mol/
L.In the present embodiment, aqueous slkali is sodium hydroxide solution, and the concentration of the amount of the material of the sodium hydroxide solution is 1mol/L.
Step 5, adds deionized water between 7.0~9.0 by pH value and the China pink tea leaching liquor of sodium hydroxide solution adds
Heat is to seething with excitement, and seethe with excitement 10min, and the pH value for measuring China pink tea leaching liquor is 8.23.
Step 6, under fluidized state, into China pink tea leaching liquor add 1.5mL silver nitrate solution carry out reaction 1~
60min.In the present embodiment, the reaction time is respectively 2 minutes, 5 minutes, 10 minutes, 15 minutes.
Step 7, after reaction terminates, it is respectively 2 minutes, 5 minutes, 10 minutes, 15 minutes anti-to respectively obtain the reaction time
Answer liquid.Four groups of obtained reaction solutions are taken pictures.
Fig. 5 is that the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 50 minutes, 55 minutes in embodiments of the invention two shines
Piece.
As shown in figure 5, photos of Fig. 5 a for the reaction solution of reaction 2 minutes, Fig. 5 b are the photograph of the reaction solution of reaction 5 minutes
Piece, Fig. 5 c are the photo of the reaction solution of reaction 10 minutes, and Fig. 5 d are the photo of the reaction solution of reaction 15 minutes.With the reaction time
Increase, the color of reaction solution gradually deepens, the concentration of obtained silver nano-grain also more and more higher.
Step 8, four groups of reaction solutions are centrifuged, sediment is obtained, sediment is dried and obtains silver nanoparticle
Grain.In the present embodiment, the rotating speed of four groups of reaction solution centrifugations is 10000rpm, and the temperature of drying precipitate is 40~50 DEG C, is done
The dry time is 10min.
Fig. 6 is the reaction solution that reaction is obtained after 2 minutes, 5 minutes, 10 minutes, 15 minutes in embodiments of the invention two
Uv-visible absorption spectra (UV-Vis) figure.
As shown in fig. 6, the absworption peak that silver nano-grain is produced is in 405nm or so, obvious plasma resonance letter is produced
Number.
Fig. 7 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention two is spread out
Penetrate spectrum (TEM) figure.
As shown in Figure 7, it can be clearly seen that class ball-type is presented in the silver nano-grain of gained.Remaining 2 minutes, 5 minutes, 15
The pattern of sample obtained by minute is similar with the silver nano-grain of 10 minutes, and its average diameter is 16nm or so.
Fig. 8 is that the X-ray of silver nano-grain resulting when the reaction time is 10 minutes in embodiments of the invention two is spread out
Penetrate spectrum (EDX) figure.
As shown in figure 8, the composition that can significantly find out the nano particle obtained by reaction is silver element.Cu is institute in test
Copper mesh composition, is not the impurity that nano particle is included.
When it can be seen from amount, Fig. 1 and Fig. 5 for being added by silver nitrate solution in above-mentioned two embodiment with reaction
Between increase, the color of reaction solution gradually deepens, the concentration of the silver nano-grain of generation also more and more higher.In addition, with nitric acid
The increase of the addition of silver-colored solution, the color of reaction solution is gradually deepened, the concentration of the silver nano-grain of generation also more and more higher.
The effect of embodiment and effect
The method that utilization China pink tea leaching liquor in above-described embodiment prepares silver nano-grain, because being soaked with China pink tea
Silver nano-grain that extract is synthesized as reducing agent is uniform, good dispersion and with higher stability, and inventor is largely trying
Have been surprisingly found that, synthesized nanoparticles are preserved two months at normal temperatures, produced without substantially heavy polymers in testing.In addition, this hair
The equipment that the preparation method of bright provided nano-Ag particles is used is simple, easy to operate, and pollution is not resulted in environment.China pink
Tea leaching liquor is conveniently easy to get, cheap and no toxicity, and the chemical reagent (lemon used in the past is replaced using it as reducing agent
Lemon acid sodium, ascorbic acid, unsaturated alcohol etc.), prepared silver nano-grain surface will not produce toxic chemical residual, silver
Nano particle is uniform, and stability is good, and shows obvious optical signalling, therefore the silver nanoparticle of synthesis can apply to biology
Field of medicaments.
In addition, with the increase in reaction time, the color of reaction solution is gradually deepened, the concentration of the silver nano-grain of generation
More and more higher.In addition, the increase of the addition with silver nitrate solution, the color of reaction solution is gradually deepened, the silver nanoparticle of generation
The concentration of particle also more and more higher.
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (5)
1. a kind of method that utilization China pink tea leaching liquor prepares silver nano-grain, it is characterised in that comprise the following steps：
Step one, China pink tea is soaked in 0.5~2.0h in deionized water at normal temperatures, obtains mixing tea, the China pink tea
Mass ratio with the deionized water is 1:100~300；
Step 2, will be centrifuged after the tea blend water filtration, obtains supernatant, and the supernatant is the extraction of China pink tea
Liquid；
Step 3, aqueous slkali is added into the China pink tea leaching liquor, keeps the pH value of reaction system between 7.0~9.0；
Step 4, boiling is heated to by the China pink tea leaching liquor in step 3；
Step 5, under fluidized state, the silver nitrate that 0.005~0.012mol/L is added into the China pink tea leaching liquor is molten
1~60min of reaction is carried out under liquid, fluidized state；
Step 6, after reaction terminates, obtains reaction solution, the reaction solution is centrifuged, sediment is obtained；And
Step 7, the sediment is dried and obtains the silver nano-grain.
2. the method that utilization China pink tea leaching liquor according to claim 1 prepares silver nano-grain, it is characterised in that：
Wherein, in step 3, the aqueous slkali is potassium hydroxide solution, sodium hydroxide solution or aqua calcis.
3. the method that utilization China pink tea leaching liquor according to claim 1 prepares silver nano-grain, it is characterised in that：
Wherein, in step 3, the concentration of the aqueous slkali is 0.5~2.0mol/L.
4. the method that utilization China pink tea leaching liquor according to claim 1 prepares silver nano-grain, it is characterised in that：
Wherein, in step 5,5~25min of the China pink tea leaching liquor boiling is maintained before the silver nitrate solution is added.
5. the method that utilization China pink tea leaching liquor according to claim 1 prepares silver nano-grain, it is characterised in that：
Wherein, in step 5, the silver nitrate solution is added into the China pink tea leaching liquor and react and maintenance reaction
During pH value between 8.0~8.6.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363269A (en) * | 2017-09-23 | 2017-11-21 | 信阳师范学院 | A kind of preparation method of the Nano silver solution based on tea powder |
| CN107855541A (en) * | 2017-11-30 | 2018-03-30 | 上海理工大学 | A kind of method that silver nano-grain is prepared using pseudo-ginseng leaching liquor |
| CN107900378A (en) * | 2017-12-18 | 2018-04-13 | 上海理工大学 | A kind of method that silver nano-grain is prepared using fiveleaf akebia fruit extracting solution |
| CN108097980A (en) * | 2017-12-18 | 2018-06-01 | 上海理工大学 | A kind of method that silver nano-grain is prepared using rhizoma atractylodis leaching liquor |
| CN109550974A (en) * | 2018-12-13 | 2019-04-02 | 华南理工大学 | A kind of preparation method using carnosic acid green syt nano silver |
| CN113084182A (en) * | 2021-03-04 | 2021-07-09 | 福建农林大学 | Method for preparing nano-silver by using tea leaching solution as raw material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070025040A (en) * | 2005-08-31 | 2007-03-08 | 길은주 | Packing sheet for bottle lid of unrefined rice wine and method of manufacturing the same |
| CN102941354A (en) * | 2012-12-05 | 2013-02-27 | 苏州大学 | Preparation method of even and stable nano-silver water solution |
| CN105478795A (en) * | 2015-12-14 | 2016-04-13 | 上海理工大学 | Method for preparing silver nanoparticles with sugarcane extract |
| CN106623972A (en) * | 2016-12-16 | 2017-05-10 | 上海理工大学 | Method for preparing silver nanoparticles from Chinese wolfberry fruit extraction liquid |
-
2017
- 2017-05-22 CN CN201710361818.XA patent/CN107186223A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070025040A (en) * | 2005-08-31 | 2007-03-08 | 길은주 | Packing sheet for bottle lid of unrefined rice wine and method of manufacturing the same |
| CN102941354A (en) * | 2012-12-05 | 2013-02-27 | 苏州大学 | Preparation method of even and stable nano-silver water solution |
| CN105478795A (en) * | 2015-12-14 | 2016-04-13 | 上海理工大学 | Method for preparing silver nanoparticles with sugarcane extract |
| CN106623972A (en) * | 2016-12-16 | 2017-05-10 | 上海理工大学 | Method for preparing silver nanoparticles from Chinese wolfberry fruit extraction liquid |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363269A (en) * | 2017-09-23 | 2017-11-21 | 信阳师范学院 | A kind of preparation method of the Nano silver solution based on tea powder |
| CN107363269B (en) * | 2017-09-23 | 2019-05-21 | 信阳师范学院 | A kind of preparation method of the Nano silver solution based on tea powder |
| CN107855541A (en) * | 2017-11-30 | 2018-03-30 | 上海理工大学 | A kind of method that silver nano-grain is prepared using pseudo-ginseng leaching liquor |
| CN107900378A (en) * | 2017-12-18 | 2018-04-13 | 上海理工大学 | A kind of method that silver nano-grain is prepared using fiveleaf akebia fruit extracting solution |
| CN108097980A (en) * | 2017-12-18 | 2018-06-01 | 上海理工大学 | A kind of method that silver nano-grain is prepared using rhizoma atractylodis leaching liquor |
| CN109550974A (en) * | 2018-12-13 | 2019-04-02 | 华南理工大学 | A kind of preparation method using carnosic acid green syt nano silver |
| CN113084182A (en) * | 2021-03-04 | 2021-07-09 | 福建农林大学 | Method for preparing nano-silver by using tea leaching solution as raw material |
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Application publication date: 20170922 |