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Original Article

Synthesis of Monodisperse Silica Microspheres by a Modified Stöber Method

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Pages 142-146 | Received 15 Jul 2013, Accepted 07 Feb 2014, Published online: 14 May 2014
 

Abstract

Monodisperse silica microspheres have drawn much attention for having important applications in many areas. In this paper, a series of monodisperse silica (SiO2) microspheres was synthesized successfully using a modified Stöber method in which tetraethyl orthosilicate (TEOS) was continuously supplied into the reaction system by a syringe pump. By changing the supply rate of TEOS, the diameters of the obtained SiO2 microspheres were controlled very well from 1 μm to 3 μm. Detailed characterization of the silica particles was performed using scanning electron microscopy (SEM).

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