Size control of monodisperse nonporous silica particles by seed particle growth

作者：Zhao Beibei; Tian Caihua; Zhang Yan; Tang Tao; Wang Fengyun^*

来源：Particuology, 2011, 9(3): 314-317.

DOI：10.1016/j.partic.2010.07.028

• Silica particles
• Nonporous
• Monodisperse
• Micrometer

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 mu m, 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.

• 出版日期2011-6
• 单位南京理工大学