Method for simply and rapidly producing green silver nano-particle

A silver nanoparticle and silver nanotechnology, applied in the field of preparation of silver nanoparticle, can solve problems such as color impurity, and achieve the effects of simple preparation method, uniform particle distribution and good stability

Inactive Publication Date: 2008-06-11
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The inventor has previously proposed a patent application for "preparation method of multi-color liquid-phase silver nanoparticles" to the Chinese Patent Office. The method of this application can produce liquid-phase silver nanoparticles with mixed colors, and the color is not pure.

Method used

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  • Method for simply and rapidly producing green silver nano-particle
  • Method for simply and rapidly producing green silver nano-particle
  • Method for simply and rapidly producing green silver nano-particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 4ml1.0×10 -3 mol / LAgNO 3 Pour the solution and 2ml of 1% trisodium citrate solution into a dry beaker, add about 3ml of a small amount of twice distilled water and mix well; move the mixed solution to a magnetic stirrer, stir at room temperature and add dropwise 0.2ml of 1.0 ×10 -2 mol / L ascorbic acid solution, so that the total volume of the total reaction solution is 10ml, and continue stirring for 10min to obtain green liquid-phase silver nanoparticles.

Embodiment 2

[0016] Silver nitrate solution, the concentration of ascorbic acid solution is 4.0×10 -4 mol / L, trisodium citrate solution is 2.0×10 -3 mol / L, with the method of embodiment 1, can make green transparent silver colloid.

Embodiment 3

[0018] The concentration of silver nitrate solution is 4.0×10 -4 mol / L, the concentration of trisodium citrate solution is 2.0×10 -3 mol / L, the concentration of ascorbic acid is 4×10 -3 mol / L, with the method of embodiment 1, can make clear, translucent green silver colloid.

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Abstract

The invention discloses a process for rapidly and conveniently preparing green silver nanometer particles, which is characterized in that the process comprises mixing AgNO3 solution, sodium citrate solution and little water under normal temperature, dropping ascorbic acid solution under a condition of magnetic stirring, and enabling to produce the green silver nanometer particles. The invention has the advantages that the process for preparation is simple, raw materials are easy to be obtained, single green silver nanometer particle can be prepared with good stability and dispersing property.

Description

Technical field: [0001] The invention relates to a method for preparing silver nanoparticles, in particular to a method for preparing green silver nanoparticles easily and quickly. Background technique: [0002] Due to their unique optical, electrical and catalytic properties, nanomaterials show a wide range of potential applications in many fields. In particular, silver nanoparticles have special physical and chemical properties, and are one of the preferred objects for nanochemical research. The inventor has previously proposed a patent application for "preparation method of multi-color liquid-phase silver nanoparticles" to the Chinese Patent Office. The method of this application can produce liquid-phase silver nanoparticles with mixed colors, and the color is not pure. . Invention content: [0003] The purpose of the present invention is to disclose a simple and fast method for preparing green silver nanoparticles in order to overcome the deficiencies of the prior ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 蒋治良王春明李燕
Owner GUANGXI NORMAL UNIV
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