CN103302305B - A kind of biomolecule amino acid that utilizes prepares the method for nano silver wire for reducing agent - Google Patents
A kind of biomolecule amino acid that utilizes prepares the method for nano silver wire for reducing agent Download PDFInfo
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- CN103302305B CN103302305B CN201310231482.7A CN201310231482A CN103302305B CN 103302305 B CN103302305 B CN 103302305B CN 201310231482 A CN201310231482 A CN 201310231482A CN 103302305 B CN103302305 B CN 103302305B
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Abstract
The present invention utilizes biomolecule amino acid to prepare the method for nano silver wire for reducing agent reduction silver nitrate in the liquid phase under disclosing a kind of temperate condition, the steps include: to prepare certain density AgNO
3solution, adds a certain amount of glycine biomolecule wherein, mixes with vortex mixer, put into insulating box, collect products therefrom after reaction certain hour, present bending linear structure by transmission electron microscope observing products therefrom, length is 50 ~ 400nm, and diameter is 20 ~ 30nm.Compared with prior art, the present invention has the following advantages: reaction system is simple, and mild condition is cost-saving; Product morphology and size tunable, the features such as the large and structure of output is distinct; Be reducing agent with biomolecule, there is environmental friendliness characteristic.
Description
Technical field
The present invention relates to the preparation field of nano material, exactly refer to that a kind of biomolecule amino acid that utilizes prepares the method for nano silver wire for reducing agent.
Background technology
There is the Nano silver grain of anisotropic structure, such as one dimension nano silver wire, Silver nanorod etc., pattern due to its uniqueness causes it to have unique character such as optics, electricity, can be widely used in multiple fields such as medicine, catalysis, antibacterial, biology sensor material.The multiplex chemical method of Nano silver grain of the various pattern of present synthesis, such as photochemical reduction, electrochemical reducing and solution phase chemical reduction etc.Wherein liquid phase reduction operation more for convenience, and cost low yield is large, thus receives the concern of people.
But according to the requirement of present society sustainable development, environmental protection is the problem that all trades and professions all will be paid attention to.Therefore, apply various biological method and will become following trend to prepare nano material, this type of nano material product has more environment friendly and biocompatibility, pharmaceutical engineering, biomedical as oncotherapy, medicament transport, antibacterial with to sterilize etc. in will have very vast potential for future development.Therefore, adopting liquid phase biological reducing legal system for the method for nano silver wire or rod by the environmental friendliness feature in conjunction with the easy to operate of liquid phase method and bioanalysis, is the research emphasis utilizing biological method production nano material on a large scale at present.And utilize biomolecule amino acid to reduce silver salt in the liquid phase under mild conditions to obtain nano silver wire, due to its simple and effective, be a kind of method of significant, current the method is not also shown in open.
Summary of the invention
For above-mentioned defect, biomolecule amino acid under the technical problem that the present invention solves is to provide a kind of temperate condition, is utilized to prepare the method for nano silver wire for reducing agent reduction silver nitrate in the liquid phase.
In order to solve above technical problem, the biomolecule amino acid that utilizes provided by the invention prepares the method for nano silver wire for reducing agent, the steps include: to prepare certain density AgNO
3solution, adds a certain amount of glycine biomolecule wherein, mixes with vortex mixer, put into insulating box, collect products therefrom after reaction certain hour, present bending linear structure by transmission electron microscope observing products therefrom, length is 50 ~ 400nm, and diameter is 20 ~ 30nm.Wherein glycine biomolecule serves the effect of reducing agent.
Preferably, the mol ratio of described glycine biomolecule and described silver nitrate is 0.5-2:1.
Preferably, the concentration of described liquor argenti nitratis ophthalmicus is 0.02mol/L-0.04mol/L.
Preferably, in described reaction solution, the concentration of glycine biomolecule is 0.01mol/L-0.08mol/L.
Preferably, the temperature in described insulating box is 25 DEG C, and the time is 20-24 hour.
Preferably, certain density AgNO3 solution, adds a certain amount of glycine biomolecule wherein, mixes 1 minute with vortex mixer.
Biomolecule used by the present invention is glycine.Glycine is a kind of common bio-molecules, to ecological nonhazardous, environmental protection, as reducing agent, glycine has no open in the application of silver nano material preparation field, and through the experimental study that applicant is a large amount of, the present invention show that glycine biomolecule can be used as reducing agent reduction silver nitrate to prepare silver nano material, and the linear structure with anisotropy pattern can be obtained, respond well.
Beneficial effect of the present invention: glycine biomolecule is as reducing agent, and common solution in very easily water-soluble production such as grade, is conducive to infiltration in use; Toxic action is not had to environment and biology, compensate for the deficiency that existing chemical method produces silver nano material; Glycine biomolecule, as reducing agent, is also the template in this reaction system simultaneously, effectively can controls the pattern of silver nanoparticle product, obtain one dimension nano silver wire; In addition, this reaction system is simple, and preparation is convenient, mild condition, as the production of, can be greatly cost-saving.
Accompanying drawing explanation
Fig. 1 is glycine-AgNO in the embodiment of the present invention 1
3the silver nanoparticle product transmission electron microscope photo of differential responses system;
Fig. 2 is glycine-AgNO in the embodiment of the present invention 2
3the silver nanoparticle product transmission electron microscope photo of differential responses system;
Fig. 3 is glycine-AgNO in the embodiment of the present invention 3
3the silver nanoparticle product transmission electron microscope photo of differential responses system.
Detailed description of the invention
In order to those skilled in the art can understand technical scheme provided by the present invention better, set forth below in conjunction with specific embodiment.
Embodiment 1
Refer to Fig. 1, this figure is the silver nanoparticle product transmission electron microscope photo of glycine in the embodiment of the present invention 1-silver nitrate differential responses system.Glycine and silver nitrate mol ratio are respectively 2:1, AgNO
3concentration is 0.03mol/L, and reaction temperature is 25 ° of C, and the reaction time is 24h.
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.03mol/L
3solution, adds quantitative glycine biomolecule wherein, makes its concentration be 0.06mol/L, mixes 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 24h;
(2) collecting products therefrom, is bending linear structure by transmission electron microscope observing gained primary product.Silver nanoparticle line length is 50 ~ 100nm, and diameter is about 20nm.
Embodiment 2
Refer to Fig. 2, this figure is the silver nanoparticle product transmission electron microscope photo of glycine in the embodiment of the present invention 2-silver nitrate differential responses system.Glycine and silver nitrate mol ratio are respectively 1:1, AgNO
3concentration is 0.03mol/L, and reaction temperature is 25 ° of C, and the reaction time is 20h.
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.03mol/L
3solution, adds quantitative glycine biomolecule wherein, makes its concentration be 0.03mol/L, mixes 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 24h;
(2) collecting products therefrom, is bending linear structure by transmission electron microscope observing gained primary product.Silver nanoparticle line length is 100 ~ 300nm, and diameter is about 30nm.
Embodiment 3
Refer to Fig. 3, this figure is the silver nanoparticle product transmission electron microscope photo of glycine in the embodiment of the present invention 3-silver nitrate differential responses system.Glycine and silver nitrate mol ratio are respectively 1:2, AgNO
3concentration is 0.03mol/L, and reaction temperature is 25 ° of C, and the reaction time is 22h.
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.03mol/L
3solution, adds quantitative biomolecule amino acid A (i.e. glycine) wherein, makes its concentration be 0.015mol/L, mix 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 24h;
(2) collecting products therefrom, is the mixture of spheroidal particle and bending linear structure by transmission electron microscope observing products therefrom.Silver nanoparticle line length is 200 ~ 400nm, and diameter is about 30nm.
Embodiment 4
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.02mol/L
3solution, adds quantitative biomolecule amino acid A (i.e. glycine) wherein, makes its concentration be 0.01mol/L, mix 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 20h;
(2) collect products therefrom, be mainly spheroidal particle by transmission electron microscope observing products therefrom.
Embodiment 5
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.04mol/L
3solution, adds quantitative biomolecule amino acid A (i.e. glycine) wherein, makes its concentration be 0.08mol/L, mix 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 22h;
(2) collecting products therefrom, is spheroidal particle by transmission electron microscope observing gained primary product.
Embodiment 6
What the embodiment of the present invention provided utilize biomolecule amino acid prepares the method for nano silver wire for reducing agent, and step is as follows:
(1) compound concentration is the AgNO of 0.02mol/L
3solution, adds quantitative biomolecule amino acid A (i.e. glycine) wherein, makes its concentration be 0.08mol/L, mix 1min with vortex mixer, and put into insulating box and keep thermostat temperature to be 25 ° of C, the reaction time is 24h;
(2) collecting products therefrom, is spheroidal particle by transmission electron microscope observing products therefrom.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. utilize biomolecule amino acid to prepare a method for nano silver wire for reducing agent, it is characterized in that, the steps include: to prepare certain density AgNO
3solution, adds a certain amount of glycine biomolecule wherein, mixes with vortex mixer, put into insulating box, collect products therefrom after reaction certain hour, present bending linear structure by transmission electron microscope observing products therefrom, length is 50 ~ 400nm, and diameter is 20 ~ 30nm;
The mol ratio of described glycine biomolecule and described silver nitrate is 0.5-2:1;
In described reaction solution, the concentration of glycine biomolecule is 0.015mol/L-0.06mol/L; Temperature in described insulating box is 25 DEG C, and the time is 20-24 hour.
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| CN103820066B (en) * | 2014-03-24 | 2015-04-01 | 安徽工业大学 | Method for preparing silver-based conductive adhesive |
| CN104562658B (en) * | 2015-01-21 | 2017-01-11 | 辽东学院 | Amino acid nano-silver modified finishing agent as well as preparation method of finishing agent and modified fishing shell fabric |
| CN113275584B (en) * | 2021-05-20 | 2023-11-14 | 苏州星翰新材料科技有限公司 | Micro-nano silver powder and preparation method and application thereof |
| CN113798505A (en) * | 2021-08-31 | 2021-12-17 | 中硕实业(上海)有限公司 | Silver nanowire containing lavender extract and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1341358A (en) * | 2000-09-07 | 2002-03-27 | 刘建忠 | Silver zinc combined antimicrobial agent |
| CN1871087A (en) * | 2003-08-28 | 2006-11-29 | 多摩-技术转让机关株式会社 | Precious metal colloid, precious metal microparticle, composition and process for producing the precious metal microparticle |
| CN102860325A (en) * | 2012-09-12 | 2013-01-09 | 江南大学 | Bactericidal nano-silver water gel and preparation method thereof |
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| JP4627376B2 (en) * | 2001-02-20 | 2011-02-09 | バンドー化学株式会社 | Metal colloid liquid and method for producing the same |
| JP5203769B2 (en) * | 2008-03-31 | 2013-06-05 | 富士フイルム株式会社 | Silver nanowire and method for producing the same, aqueous dispersion and transparent conductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341358A (en) * | 2000-09-07 | 2002-03-27 | 刘建忠 | Silver zinc combined antimicrobial agent |
| CN1871087A (en) * | 2003-08-28 | 2006-11-29 | 多摩-技术转让机关株式会社 | Precious metal colloid, precious metal microparticle, composition and process for producing the precious metal microparticle |
| CN102860325A (en) * | 2012-09-12 | 2013-01-09 | 江南大学 | Bactericidal nano-silver water gel and preparation method thereof |
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