Size control of monodisperse nonporous silica particles by seed particle growth--颗粒学报PARTICUOLOGY

Zhao, B., Tian, C., Zhang, Y., Tang, T., & Wang, F. (2011). Size control of monodisperse nonporous silica particles by seed particle growth. Particuology, 9(3), 314–317. https://doi.org/10.1016/j.partic.2010.07.028

Size control of monodisperse nonporous silica particles by seed particle growth

Beibei Zhao ^a, Caihua Tian ^{a b}, Yan Zhang ^a, Tao Tang ^b, Fengyun Wang ^a *

a Institute of Industrial Chemistry, Nanjing University of Science & Technology, Nanjing 210094, China
b Dalian Elite Analytical Instrument Co. Ltd., Dalian 116011, China

10.1016/j.partic.2010.07.028

Volume 9, Issue 3, June 2011, Pages 314-317

Received 3 June 2010, Revised 12 July 2010, Accepted 19 July 2010, Available online 22 March 2011.

E-mail: wangfywater@yahoo.com.cn

Highlights

Abstract

Monodisperse nonporous silica particles were prepared by sol-precipitation via seed particle growth method, and the particle size, which varied from 1.0 to 4.7 μm, was strictly controlled in our experiment. The formation of secondary particles, which resulted in a multimodal distribution of particle size, was suppressed by changing tetraethoxysilane (TEOS) concentration and reaction temperature. Furthermore, the effect of adding small amounts of electrolyte to the hydrolysis mixture was examined.

Graphical abstract

Keywords

Silica particles; Nonporous; Monodisperse; Micrometer

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