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Preparation method of Ag-Ag2O hetero-structure silver material

A heterogeneous structure and high-quality technology, applied in the direction of nanotechnology, can solve the problems of complex operation and high cost, and achieve the effect of good dispersion, uniform distribution and easy operation

Inactive Publication Date: 2013-07-17
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of high cost and complicated operation in the existing methods for preparing heterostructure silver materials, and provides an Ag-Ag 2 Preparation method of O heterostructure silver material

Method used

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  • Preparation method of Ag-Ag2O hetero-structure silver material
  • Preparation method of Ag-Ag2O hetero-structure silver material
  • Preparation method of Ag-Ag2O hetero-structure silver material

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Experimental program
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specific Embodiment approach 1

[0018] Specific implementation mode one: a kind of Ag-Ag of this implementation mode 2 O the preparation method of heterogeneous structure silver material, carry out according to the following steps:

[0019] One, prepare mixed solution: add soluble starch and L-lysine into deionized water successively, fully mix uniformly, obtain mixed solution; wherein the volume ratio of the quality of described soluble starch and deionized water is 1g:(50 ~60) mL, the volume ratio of the mass of L-lysine to deionized water is 1g:(50 ~ 60) mL;

[0020] Two, prepare silver nitrate solution: silver nitrate is added to deionized water, obtain silver nitrate solution; The quality of wherein described silver nitrate and the volume ratio of deionized water are 1g:(50~60) mL;

[0021] 3. Preparation of silver nanoparticles: Mix the mixed solution prepared in step 1 with the silver nitrate solution prepared in step 2 to obtain a reaction solution, then react under the protection of nitrogen with a...

specific Embodiment approach 2

[0029] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the solvent described in Step 4 is deionized water or ethanol. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the substrate described in Step 5 is a glass sheet or a silicon sheet. Others are the same as in the first or second embodiment.

[0031] Adopt following test to verify effect of the present invention:

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Abstract

The invention provides a preparation method of an Ag-Ag2O hetero-structure silver material, which aims at solving the problems of high cost and complex operation existing in the conventional hetero-structure silver material preparation method. The preparation method comprises the following steps of: one. preparing a mixed solution; two. preparing a silver nitrate solution; three. preparing silver nanoparticles; four. preparing a nanoparticle dispersion liquid; five. preparing a silver nanoparticle substrate; and six. oxidizing, thus obtaining the Ag-Ag2O hetero-structure silver material. The Ag-Ag2O hetero-structure silver material prepared by the method has good ball-like morphology and can be applied to the field of catalysis, photoelectricity and the like. The Ag-Ag2O hetero-structure silver material prepared by the method has the diameter of about 20mm and good dispersity and is uniform in distribution. The preparation method disclosed by the invention has the advantages of being mild and simple, easy to operate and environment-friendly and the like and having low requirements on experimental conditions. The method can be used for preparing the Ag-Ag2O hetero-structure silver material.

Description

technical field [0001] The invention relates to a method for preparing a heterogeneous structure silver material. Background technique [0002] In the last ten years, metal nanomaterials have been extensively studied because of their special optical and electrical properties, and are correspondingly applied in catalysis, electronics, photography, optics, information storage technology, biology, chemical sensors, surface enhancement Raman and other fields. In recent years, a heterostructure of metal nanoparticles has attracted widespread attention. The contact interface of these two materials with different components forms a heterojunction. This structure possesses the chemical and physical properties of both materials. characteristics, and usually have excellent photoelectric properties that cannot be achieved by the two materials, so they have good development prospects. At present, the main methods for preparing such structures include interfacial alloys, epitaxial grow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00
Inventor 张艳红刘抱冯清茂蔡万安
Owner HEILONGJIANG UNIV
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