Preparation and Characterization of Micron Silicon Dioxide Spherical Particles

Jun Fang Wei; He Zhang; Fang Zhu

doi:10.4028/www.scientific.net/AMR.652-654.219

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Preparation and Characterization of Micron Silicon...

Preparation and Characterization of Micron Silicon Dioxide Spherical Particles

Abstract:

Monodisperse micron-grade silicon dioxide spherical particles have been prepared by using Stöber method. Effects of the solvents, the concentration of ammonia, TEOS and water on the particle sizes and the particle diameter distribution of silicon dioxide were investigated by scanning electron microscopy (SEM). The results show that the monodisperse micron-grade silicon dioxide spherical particles could be obtained in isopropanol solvent under a suitable reaction condition. The particle sizes increase with the decreasing of TEOS concentration. When the concentration of ammonia and water is increased, the silica particle size will increase. The particle diameter distribution narrows with the increment of the ammonia concentration and decrement of water concentration.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

219-222

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.219

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Online since:

January 2013

Authors:

Jun Fang Wei, He Zhang, Fang Zhu

Keywords:

Micron-Grade, Monodisperse, Silicon Dioxide, Spherical Particles, Stöber Method

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