Silicon dioxide composite microspheres of metal or metal oxide nanoparticles and preparation method thereof

A technology of metal nanoparticles and silicon dioxide, applied in the direction of silicon dioxide, silicon oxide, etc., can solve the problems of destroying the properties of bulk materials and uneven properties of bulk materials
CN104692401AActive Publication Date: 2015-06-10JIANGSU SHIKEXINCAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU SHIKEXINCAI CO LTD
Publication Date
2015-06-10

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Abstract

The invention relates to silicon dioxide composite microspheres of metal or metal oxide nanoparticles. The diameter of the silicon dioxide composite microspheres is 100-1000nm, and the metal or metal oxide is uniformly dispersed in the inside or surface of the silicon dioxide microspheres in the form of a plurality of nanoparticles. The preparation method comprises the following steps: depositing nitrate on a three-dimensional ordered macroporous carbon template, heating in the absence of air to decompose the nitrate into metal or metal oxide, carrying out silicon dioxide sol-gel, sintering, grinding and the like to obtain the silicon dioxide composite microspheres with uniformly distributed metal or metal oxide nanoparticles. The composite microspheres can be used for preparing a functional filler for special glass materials. The method solves the problem of uniform dispersion of the metal or metal oxide nanoparticles in the base material.
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Description

technical field

[0001] The invention relates to a filler used for preparing special glass and special ceramic materials. It specifically relates to a silicon dioxide composite microsphere of metal or metal oxide nanoparticles. Background technique

[0002] Common glasses include silicate glass, borate glass, phosphate glass, chalcogenide glass and halide glass. The main component of silicate glass is silicon dioxide, and may also contain minor components such as alkali metals, alkaline earth metals or other oxides. According to the different contents of the secondary components, it is divided into quartz glass, high silica glass, soda lime glass, lead silicate glass, aluminosilicate glass, borosilicate glass and so on. Special properties can be imparted to silicate glass by doping it with metal ions. For example, lead silicate glass prepared by adding lead ions to silicate glass has high refractive index and high volume resistance, and can be used to manufacture light bul...

Claims

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