Method for preparing radius-controllable ferric oxide hollow ball

A technology of iron oxide and iron oxide nanometers, which is applied in the field of chemical materials, can solve the problems of inability to quickly adjust the particle size of the product, unfavorable industrial production, and difficulty in product separation, and achieve products with strong controllability, excellent product crystallization, and high purity. Effect
CN101037232AInactive Publication Date: 2007-09-19ANHUI UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI UNIVERSITY OF TECHNOLOGY
Publication Date
2007-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a preparation method of ferric oxide hollow ball, the grain size of which can be controlled. In the present invention, the inorganic iron salt and urea are used as raw material and is dissolved in a mixture system of inferiority monohydric alcohol and water; the iron-containing precursor is obtained by the coprecipitation technique, and then is dispersed into the inferiority monohydric alcohol / water mixture system, finally is heated to a certain temperature with a certain reaction time under the condition of hot mixed solvent, thereby, the ferric oxide(alpha-Fe2O3)submicron grain with single crystal hollow structure, narrow particle size distribution and excellent dispersity is obtained. The hollow ball with controlled grain can be obtained by simply adjusting the compounding ration of the reaction system. The present invention has the advantages of simple system, high output, even grain, pure product, easy separation process and excellent crystallinity, and is adapted to industrialization production.
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Description

Technical field:

[0001] The invention belongs to the technical field of chemical materials, and in particular relates to a method for preparing iron oxide hollow spheres with controllable particle diameters by using solvothermal technology. Background technique:

[0002] Iron oxide (α-Fe 2 o 3 ) Nanoparticles have good weather resistance, light resistance, magnetism and good absorption and shielding effect on ultraviolet rays, and can be widely used in flash coatings, inks, plastics, leather, automotive topcoats, electronics, high magnetic recording materials, magnetic Fluids, catalysts, and biomedical processes. Iron oxide (α-Fe 2 o 3 ) Nano and submicron hollow spheres have the above-mentioned characteristics of iron oxide nanoparticles, and because of their hollow structure, they are also potential in magnetic fluids, biomedicine, micro-load delivery systems, surface functionalization, sensors and catalyst carriers, etc. Application prospects, its preparation technol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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