CN1209219C

CN1209219C - Process and apparatus for preparing silver atoms

Info

Publication number: CN1209219C
Application number: CN 01115101
Authority: CN
Inventors: 艾铭南
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-26
Filing date: 2001-06-26
Publication date: 2005-07-06
Anticipated expiration: 2021-06-26
Also published as: CN1393311A

Abstract

The present invention provides a method and a device for preparing silver atoms. In the method, the fine powder of silver bromide is generated in a dust shape in a physical method; a lighting source is used for irradiating the silver bromide dust in the dust shape for causing silver bromide to carry out photochemical reactions for being decomposed into pure monomer silver atoms and bromine gas; the monomer silver atoms can be used for the study or the application of various nanometer materials. Compared with the prior art, the silver atom preparation method of the present invention has the characteristics of reasonable technological design, high purity of generated silver atoms, few device investment, low processing cost, easy operation, fineness grade of produced atom grade metal silver higher than that of nanometer materials prepared in other methods, etc. and performs a driving function to deep study and the application of nanotechnology.

Description

Apparatus for preparing silver atoms

Technical Field

The invention relates to equipment for producing nano materials, in particular to equipment for preparing silver atoms.

Background

At present, the application of nanotechnology is very common, and nanotechnology is widely applied to many fields such as food processing, mechanical manufacturing, chemical industry, household appliances, daily necessities and the like. The essence of the nanometer technology is the development of nanometer materials, the main raw material for preparing the nanometer materials is superfine silver powder, namely, the fineness of the silver raw material for preparing the nanometer materials is processed to be nanometer level, the addition of the nanometer metal silver can play a great role in modifying the chemical property and the physical property of the raw material, and unexpected effects can be realized. The smaller the fineness of the metallic silver, the better, the nanometer grade can be achieved at present. However, the smaller the fineness, the higher the processing cost, the greater the processing difficulty, and only the nanometer level can be processed according to the prior art. The prior art has a plurality of methods for producing and processing the nano-scale silver powder, but the practical application has the defects of large investment, low work efficiency and high production cost, and restricts the wide popularization and application of the nano-scale technology.

Disclosure of Invention

The invention aims to provide equipment for producing atomic-level metal silver atoms, which has the advantages of simple structure, high work efficiency, low investment and low processing cost.

The invention is realized by adopting light to irradiate the silver bromide fine powder in a closed container to cause the silver bromide fine powder to generate photochemical reaction, namely the photochemical reaction decomposes the silver bromide to produce pure metallic silver atoms.

Illumination of light

The chemical reaction equation is as follows:

drawings

The attached drawing of the specification is a structural schematic diagram of equipment for preparing atomic-scale silver atoms.

Detailed description of the preferred embodiments

The equipment of the invention generates the silver bromide fine powder into dust by a physical method, irradiates the dust-shaped silver bromide dust by a lighting source, and leads the silver bromide to be decomposed into pure monomer silver atoms and bromine gas by photochemical reaction, and the monomer silver atoms can be used for research or application of various nano materials.

The equipment for preparing silver atoms is shown in the attached figure, and the structure of the equipment is composed of a raw material pressure container 1 and a silver atom carrier mixing container 8, wherein the upper part of the raw material pressure container 1 is provided with an air inlet pipe 4 with a valve and a spiral pipe spray pipe 5, silver bromide powder 2 is arranged in the raw material pressure container 1, a stirrer 7 and an illuminating light source 6 are arranged in the carrier mixing container 8 provided with a silver atom absorption carrier 9, the illuminating light source 6 is arranged at the top of the carrier mixing container 8, and a spray opening of the spiral pipe 5 is arranged below the illuminating light source 6.

The wall of the raw material pressure container 1 and the wall of the carrier mixing container 8 are provided with material inlets and outlets 3 and 10.

Example (b):

the design principle of the equipment is that the photochemical decomposition reaction of silver bromide is adopted to produce monomer metal silver atoms, silver bromide fine powder is filled into a light-tight raw material pressure container, compressed air is introduced to serve as power, the silver bromide fine powder in the raw material pressure container is sprayed into the container filled with the silver atom absorption carrier through a spiral spray pipe with a spray head, after the silver bromide fine powder is sprayed into the container filled with the silver atom absorption carrier, the dusty silver bromide generates the photochemical decomposition reaction through the irradiation of a lighting source at the spray head, pure monomer silver atom fog and bromine gas are generated, the monomer silver atoms are absorbed by the carrier as short-time transition products, and the released bromine gas can be recycled.

There are many methods for atomizing and dispersing silver bromide powder, and there are methods such as high-pressure spray atomization and electronic spray atomization, which are all general techniques. The illumination light source may use various types of illumination fixtures or natural light.

Compared with the prior art, the equipment has the characteristics of reasonable design, simple equipment structure, less equipment investment, low production cost and capability of producing pure monomer silver atoms, thereby playing an important role in promoting the deep research and application of nanotechnology.

Claims

1. The equipment for preparing the silver atoms is characterized in that the equipment is composed of a raw material pressure container (1) and a silver atom carrier mixing container (8), an air inlet pipe (4) with a valve and a spiral pipe spray pipe (5) are arranged at the upper part of the raw material pressure container (1), silver bromide powder (2) is arranged in the raw material pressure container (1), a stirrer (7) and an illuminating light source (6) are arranged in the carrier mixing container (8) filled with a silver atom absorption carrier (9), the illuminating light source (6) is arranged at the top of the carrier mixing container (8), a nozzle of the spiral spray pipe (5) is arranged below the illuminating light source (6), and material inlets and outlets (3) and (10) are formed in the wall of the raw material pressure container (1) and the wall of the carrier mixing container (8).