CN109158615A - A method of nano Au particle is prepared by template of longan polysaccharide - Google Patents
A method of nano Au particle is prepared by template of longan polysaccharide Download PDFInfo
- Publication number
- CN109158615A CN109158615A CN201811086185.7A CN201811086185A CN109158615A CN 109158615 A CN109158615 A CN 109158615A CN 201811086185 A CN201811086185 A CN 201811086185A CN 109158615 A CN109158615 A CN 109158615A
- Authority
- CN
- China
- Prior art keywords
- particle
- nano
- longan polysaccharide
- template
- solution
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
Abstract
The present invention relates to a kind of methods for preparing nano Au particle as template using longan polysaccharide.Method includes the following steps: longan polysaccharide is dissolved in deionized water by (1), it is made into longan polysaccharide solution；(2) longan polysaccharide solution and chlorauric acid solution are mixed, puts it into metal bath, be stirred to react, slowly becomes aubergine from light yellow to solution, with bag filter dialysis mixed solution, obtain nano Au particle.The above-mentioned method that nano Au particle is prepared as template using longan polysaccharide, use longan polysaccharide for template, it is low in cost, pollution-free, reduction effect is obvious, preparation condition is mild, easy to operate, reaction process is easily controllable, obtained nano Au particle uniform particle sizes, specific surface area with higher and catalytic efficiency.
Description
Technical field
The present invention relates to nano metal material technical fields, prepare nanometer by template of longan polysaccharide more particularly to one kind
The method of gold particle.
Background technique
A variety of organic compounds present in water can seriously endanger human health.Nano Au particle is for some organic contaminations
Object has efficient catalytic degradation to act on.Nano Au particle specific surface area with higher, this makes it show distinguished urge
Change performance.But nano Au particle that there are surface atom numbers is more, Atomic coordinate is insufficient and surface with higher can the features such as,
This makes nano Au particle have very strong adsorptivity, aggregation is easy, to reduce its catalytic activity.
Currently, the preparation method of nano Au particle mainly uses citric acid to do reducing agent and stabilizer.But this method
It needs to be reacted at a high temperature of 100 DEG C.In recent years, some researchers are template in room temperature item using microorganism and polypeptide etc.
Inorganic nano gold particle is prepared under part.For example, the protokaryon bacterium in microorganism is paid close attention to earliest, Klaus etc., which is described, to be applied
In 259 periplasmic space of family name pseudomonad AG the phenomenon that accumulation maximum particle diameter clear up to 200nm, pattern silver-based single crystal grain.
Nair etc. synthesizes silver, gold nano grain and silver-billon nano particle using Bacillus acidi lactici.But there are former materials for these methods
Expect the high disadvantage of price.Therefore, how to prepare price it is low and prepared under conditions of mild condition nano Au particle become concern
Focus.
Summary of the invention
Based on this, it is necessary to which for current nano Au particle preparation process, complicated, condition is acutely, catalytic efficiency is more low asks
Topic, provides a kind of method for preparing nano Au particle as template using longan polysaccharide.
A method of nano Au particle is prepared by template of longan polysaccharide, comprising the following steps:
(1) longan polysaccharide is dissolved in deionized water, is made into longan polysaccharide solution；
(2) longan polysaccharide solution and chlorauric acid solution are mixed, puts it into metal bath, be stirred to react, to molten
Liquid slowly becomes aubergine from light yellow, with bag filter dialysis mixed solution, obtains nano Au particle.
The above-mentioned method for preparing nano Au particle as template using longan polysaccharide, uses longan polysaccharide for template, low in cost,
It is pollution-free, reduction effect is obvious, preparation condition is mild, easy to operate, reaction process is easily controllable, obtained nano Au particle
Uniform particle sizes, specific surface area with higher and catalytic efficiency.
The concentration of the longan polysaccharide solution is 0.1~30mg/mL in one of the embodiments,.
The concentration of the chlorauric acid solution is 0.1~20mM in one of the embodiments,.
The molar ratio of the longan polysaccharide solution and chlorauric acid solution is 1:10~100 in one of the embodiments,.
The stirring rate being stirred to react is 500~1000rpm in one of the embodiments,.
The reaction temperature being stirred to react is 40 DEG C~70 DEG C in one of the embodiments, and the reaction time is 2~8
Hour.
The molecular cut off of the bag filter is 8000~14000 in one of the embodiments,.
The partial size of the nano Au particle is 5~25nm in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the TEM figure for the nano Au particle that the embodiment of the present invention 1 obtains；
Fig. 2 is the transmission electron microscope particle diameter distribution histogram for the nano Au particle that the embodiment of the present invention 1 obtains；
Fig. 3 is ln (C of the nano-scale gold particle muonic catalysis p-nitrophenol of the acquisition of the embodiment of the present invention 1 at λ=403nmt/
C0) and the reaction time (t) between graph of relation；
Fig. 4 is the TEM figure for the nano Au particle that the embodiment of the present invention 2 obtains；
Fig. 5 is the transmission electron microscope particle diameter distribution histogram for the nano Au particle that the embodiment of the present invention 2 obtains；
Fig. 6 is ln (Ct/ of the nano-scale gold particle muonic catalysis p-nitrophenol of the acquisition of the embodiment of the present invention 2 at λ=403nm
C0) the graph of relation between the reaction time (t)；
Fig. 7 is the TEM figure for the nano Au particle that the embodiment of the present invention 3 obtains；
Fig. 8 is the transmission electron microscope particle diameter distribution histogram for the nano Au particle that the embodiment of the present invention 3 obtains；
Fig. 9 is ln (Ct/ of the nano-scale gold particle muonic catalysis p-nitrophenol of the acquisition of the embodiment of the present invention 3 at λ=403nm
C0) the graph of relation between the reaction time (t)；
Figure 10 is the TEM figure for the nano Au particle that the embodiment of the present invention 4 obtains；
Figure 11 is the transmission electron microscope particle diameter distribution histogram for the nano Au particle that the embodiment of the present invention 4 obtains；
Figure 12 is ln (C of the nano-scale gold particle muonic catalysis p-nitrophenol of the acquisition of the embodiment of the present invention 4 at λ=403nmt/
C0) and the reaction time (t) between graph of relation.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
Embodiment 1
Longan polysaccharide is dissolved in deionized water, the longan polysaccharide solution of 0.1mg/mL is configured to.It is 0.1mg/ by concentration
The longan polysaccharide solution and chlorauric acid solution of mL is put into after mixing in the ratio that the molar ratio of longan polysaccharide and gold chloride is 1:10
In metal bath, control stirring rate is 400rpm, reacts 4h under conditions of temperature is 50 DEG C, and mixed solution color is from light yellow
Become aubergine, the bag filter dialysis mixed solution for being 8000~14000 with molecular cut off, i.e. acquisition nano Au particle.
The transmission electron microscope picture of nano Au particle is as shown in Figure 1, show that its pattern is spherical.The transmission electron microscope of nano Au particle
Particle diameter distribution histogram is as shown in Fig. 2, show that the partial size of the nano Au particle of preparation is 12.17 ± 5.6nm, nano Au particle tool
Have compared with small particle and monodispersed feature.
It takes the p-nitrophenyl phenol solution of 30 μ L 5mM in cuvette, 1910 μ L deionized waters is added, 30 μ L this reality are added
The nano Au particle that the concentration of example preparation is 2 μM is applied, then the sodium borohydride solution of 30 μ L0.4mg/ml is added into cuvette, is used
Ultraviolet specrophotometer surveys absorbance versus time curve under 403nm.Nano-scale gold particle muonic catalysis p-nitrophenol λ=
Ln (C at 403nmt/C0) and the reaction time (t) between relation curve as shown in figure 3, showing that nano Au particle can be catalyzed
P-nitrophenol reduction, this reaction is pseudo-first-order reaction.
Embodiment 2
Longan polysaccharide is dissolved in deionized water, the longan polysaccharide solution of 1mg/mL is configured to.It is 1mg/mL's by concentration
Longan polysaccharide solution and chlorauric acid solution are put into metal after mixing in the ratio that the molar ratio of longan polysaccharide and gold chloride is 1:20
In bath, control stirring rate is 500rpm, reacts 5h under conditions of temperature is 55 DEG C, mixed solution color becomes from light yellow
Aubergine, the bag filter dialysis mixed solution for being 8000~14000 with molecular cut off, i.e. acquisition nano Au particle.
The transmission electron microscope picture of nano Au particle is as shown in figure 4, show that its pattern is spherical.The transmission electron microscope of nano Au particle
Particle diameter distribution histogram is as shown in figure 5, show that the partial size of the nano Au particle of preparation is 13.91 ± 4.55nm, nano Au particle
Have the characteristics that compared with small particle and monodispersed.
It takes the p-nitrophenyl phenol solution of 30 μ L 5mM in cuvette, 1910 μ L deionized waters is added, 30 μ L this reality are added
The nano Au particle that the concentration of example preparation is 2 μM is applied, then the sodium borohydride solution of 30 μ L0.4mg/ml is added into cuvette, is used
Ultraviolet specrophotometer surveys absorbance versus time curve under 403nm.Nano-scale gold particle muonic catalysis p-nitrophenol λ=
Ln (Ct/C0) at 403nm and the relation curve between the reaction time (t) are as shown in fig. 6, show that nano Au particle can be catalyzed
P-nitrophenol reduction, this reaction is pseudo-first-order reaction.
Embodiment 3
Longan polysaccharide is dissolved in deionized water, the longan polysaccharide solution of 10mg/mL is configured to.It is 10mg/mL by concentration
Longan polysaccharide solution and chlorauric acid solution in the molar ratio of longan polysaccharide and gold chloride be 1:30 ratio mix after be put into gold
Belong in bath, control stirring rate is 700rpm, reacts 6h under conditions of temperature is 60 DEG C, and mixed solution color is from pale yellow discoloration
At aubergine, the bag filter dialysis mixed solution for being 8000~14000 with molecular cut off, i.e. acquisition nano Au particle.
The transmission electron microscope picture of nano Au particle is as shown in fig. 7, show that its pattern is spherical.The transmission electron microscope of nano Au particle
Particle diameter distribution histogram is as shown in figure 8, show that the partial size of the nano Au particle of preparation is 12.75 ± 5.94nm, nano Au particle
Have the characteristics that compared with small particle and monodispersed.
It takes the p-nitrophenyl phenol solution of 30 μ L 5mM in cuvette, 1910 μ L deionized waters is added, 30 μ L this reality are added
The nano Au particle that the concentration of example preparation is 2 μM is applied, then the sodium borohydride solution of 30 μ L0.4mg/ml is added into cuvette, is used
Ultraviolet specrophotometer surveys absorbance versus time curve under 403nm.Nano-scale gold particle muonic catalysis p-nitrophenol λ=
Ln (Ct/C0) at 403nm and the relation curve between the reaction time (t) are as shown in figure 9, show that nano Au particle can be catalyzed
P-nitrophenol reduction, this reaction is pseudo-first-order reaction.
Embodiment 4
Longan polysaccharide is dissolved in deionized water, the longan polysaccharide solution of 30mg/mL is configured to.It is 30mg/mL by concentration
Longan polysaccharide solution and chlorauric acid solution in the molar ratio of longan polysaccharide and gold chloride be 1:40 ratio mix after be put into gold
Belong in bath, control stirring rate is 1000rpm, reacts 8h under conditions of temperature is 70 DEG C, and mixed solution color is from light yellow
Become aubergine, the bag filter dialysis mixed solution for being 8000~14000 with molecular cut off, i.e. acquisition nano Au particle.
The transmission electron microscope picture of nano Au particle is as shown in Figure 10, shows that its pattern is spherical.The transmission electricity of nano Au particle
Mirror particle diameter distribution histogram is as shown in figure 11, shows that the partial size of the nano Au particle of preparation is 9.85 ± 4.33nm, nano-scale gold particle
Son has the characteristics that compared with small particle and monodispersed.
It takes the p-nitrophenyl phenol solution of 30 μ L 5mM in cuvette, 1910 μ L deionized waters is added, 30 μ L this reality are added
The nano Au particle that the concentration of example preparation is 2 μM is applied, then the sodium borohydride solution of 30 μ L0.4mg/ml is added into cuvette, is used
Ultraviolet specrophotometer surveys absorbance versus time curve under 403nm.Nano-scale gold particle muonic catalysis p-nitrophenol λ=
Ln (C at 403nmt/C0) and the reaction time (t) between relation curve it is as shown in figure 12, show that nano Au particle can be catalyzed
P-nitrophenol reduction, this reaction is pseudo-first-order reaction.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of method for preparing nano Au particle as template using longan polysaccharide, which comprises the following steps:
(1) longan polysaccharide is dissolved in deionized water, is made into longan polysaccharide solution；
(2) longan polysaccharide solution and chlorauric acid solution are mixed, put it into metal bath, be stirred to react, to solution from
It is light yellow slowly to become aubergine, with bag filter dialysis mixed solution, obtain nano Au particle.
2. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The concentration of longan polysaccharide solution is 0.1~30mg/mL.
3. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The concentration of chlorauric acid solution is 0.1~20mM.
4. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The molar ratio of longan polysaccharide solution and chlorauric acid solution is 1:10~100.
5. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The stirring rate being stirred to react is 500~1000rpm.
6. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The reaction temperature being stirred to react is 40 DEG C~70 DEG C, and the reaction time is 2~8 hours.
7. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The molecular cut off of bag filter is 8000~14000.
8. the method according to claim 1 for preparing nano Au particle as template using longan polysaccharide, which is characterized in that described
The partial size of nano Au particle is 5~25nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086185.7A CN109158615A (en) | 2018-09-18 | 2018-09-18 | A method of nano Au particle is prepared by template of longan polysaccharide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086185.7A CN109158615A (en) | 2018-09-18 | 2018-09-18 | A method of nano Au particle is prepared by template of longan polysaccharide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109158615A true CN109158615A (en) | 2019-01-08 |
Family
ID=64879725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086185.7A Withdrawn CN109158615A (en) | 2018-09-18 | 2018-09-18 | A method of nano Au particle is prepared by template of longan polysaccharide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109158615A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894627A (en) * | 2019-02-19 | 2019-06-18 | 江南大学 | The synthetic method of noble metal nano particles |
| CN111590087A (en) * | 2020-06-04 | 2020-08-28 | 安徽医科大学 | Preparation method of fluorescent gold nanocluster, prepared fluorescent gold nanocluster and application thereof |
| CN115777932A (en) * | 2022-12-07 | 2023-03-14 | 成都医学院 | Method for rapidly preparing gold nanoparticles by utilizing longan seed extracting solution |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009044146A1 (en) * | 2007-10-02 | 2009-04-09 | University Of York | Metal nanoparticles |
| CN105057692A (en) * | 2015-08-06 | 2015-11-18 | 东北林业大学 | Green synthesis method of gold nanoparticles |
-
2018
- 2018-09-18 CN CN201811086185.7A patent/CN109158615A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009044146A1 (en) * | 2007-10-02 | 2009-04-09 | University Of York | Metal nanoparticles |
| CN105057692A (en) * | 2015-08-06 | 2015-11-18 | 东北林业大学 | Green synthesis method of gold nanoparticles |
Non-Patent Citations (3)
| Title |
|---|
| 吴艳玉等: "生物分子模板功能化纳米材料的研究进展", 《福建医药杂志》 * |
| 邓兰青等: "多糖模板调控纳米无机晶体生长", 《人工晶体学报》 * |
| 郑晓凤等: "桔梗多糖软模板法制备纳米硒的抗氧化及抗肿瘤活性研究", 《微量元素与健康研究》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894627A (en) * | 2019-02-19 | 2019-06-18 | 江南大学 | The synthetic method of noble metal nano particles |
| CN111590087A (en) * | 2020-06-04 | 2020-08-28 | 安徽医科大学 | Preparation method of fluorescent gold nanocluster, prepared fluorescent gold nanocluster and application thereof |
| CN115777932A (en) * | 2022-12-07 | 2023-03-14 | 成都医学院 | Method for rapidly preparing gold nanoparticles by utilizing longan seed extracting solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109158615A (en) | A method of nano Au particle is prepared by template of longan polysaccharide | |
| CN107469845A (en) | A kind of black phosphorus/noble metal composite-material, its preparation method and application | |
| Rasaki et al. | Facile synthesis approach for preparation of robust and recyclable Ag/ZnO nanorods with high catalytic activity for 4-nitrophenol reduction | |
| CN111702186B (en) | Preparation method of gold nanoparticles with adjustable size | |
| CN105127441B (en) | A kind of preparation method of platinum nano microcrystalline dispersion | |
| Shah et al. | Novel synthesis of polyoxyethylene cholesteryl ether coated Fe-Pt nanoalloys: a multifunctional and cytocompatible bimetallic alloy exhibiting intrinsic chemical catalysis and biological enzyme-like activities | |
| Gong et al. | Tiny Au satellites decorated Fe3O4@ 3-aminophenol-formaldehyde core-shell nanoparticles: Easy synthesis and comparison in catalytic reduction for cationic and anionic dyes | |
| CN110624609A (en) | Preparation method of magnetic nano catalyst | |
| Qu et al. | Impact of double-chain surfactant stabilizer on the free active surface sites of gold nanoparticles | |
| JP2011136879A (en) | Visible light-responsive titanium oxide-based fine particle dispersion and method for producing the same | |
| CN105458289B (en) | A kind of ultra-thin self assembly Pd nanodiscs and its synthetic method | |
| CN101875133B (en) | Method for bionically preparing water-soluble gold nanoparticles | |
| CN112893863A (en) | Preparation method of gold platinum nano material | |
| CN106807399A (en) | Selective deposition has the preparation method of the titanium deoxide catalyst of Mock gold particle | |
| CN110227815A (en) | A kind of preparation method of water dispersible nanowires of gold | |
| Stone et al. | Synthetic routes to shaped AuPt core–shell particles with smooth surfaces based on design rules for Au nanoparticle growth | |
| CN106513704B (en) | Nano silver, preparation method and the antibacterial agent of controlled release silver ion | |
| CN107127353A (en) | A kind of nano silver colloidal sol and preparation method thereof | |
| Pandey et al. | Organotrialkoxysilane mediated rapid and controlled synthesis metal nanoparticles in both homogeneous and heterogeneous phase and their catalytic applications | |
| KR20020082633A (en) | Preparation and application of ultra fine titania photocalysts doped by transition, lanthanides, and precious metals ion (Au, In, Sn, W, Zn, V, Ce, Eu, Ag) to utilize a solar spectrum (or spectrum of visible range) | |
| CN114523123B (en) | Nanocellulose-based fluorescent silver nanocluster and preparation method and application thereof | |
| CN110479385A (en) | A kind of hud typed Fe that cladding size is controllable3O4The preparation method of@hydrogel nanocatalyst | |
| CN105312590A (en) | Preparation method for water-soluble nanometer silver colloid | |
| CN110316806A (en) | A kind of nanocomposite nZVFPG and its preparation method and application removed for nitrate nitrogen in water | |
| CN111468741B (en) | Preparation method of ultra-uniform spherical gold nanoparticles with different particle sizes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190108 |
|
| WW01 | Invention patent application withdrawn after publication |