Preparation of sub-micro SiO2 particles by sol-gel method

DOI

10.2991/peee-15.2015.63How to use a DOI?

Keywords

Silicon, Sub-micro, Sol-gel method, Silane coupling agent, TEOS.

Abstract

In this paper, the sub-micro silica particles were prepared successfully by sol-gel method. The ammonia was introduced as a catalyst and silane coupling agent as surfactant. The impact of reaction temperature, ethyl orthosilicate (TEOS) concentration, the amount of silane coupling agent and the order added to the solution on the size of particles were investigated. The sub-micro SiO2 particles were determined by SEM. The result showed that the average size of particles changed from 200nm to 600nm while the reaction temperature was from 20 to 50 , concentration of TEOS was 0.2mol/L to 0.3mol/L and 0.075 to 0.125ml dispersant was added after reaction. At room temperature, the silica particles grew up more easily on the condition that the concentration of TEOS was 0.3 mol/L and added 0.075 to 0.125ml dispersant after the reaction, the sub-micro silica particles with the average size of 600nm were prepared.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - T. Lin
AU  - H.P. Shao
AU  - H. Zheng
AU  - L. Zhang
PY  - 2015/04
DA  - 2015/04
TI  - Preparation of sub-micro SiO2 particles by sol-gel method
BT  - Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering
PB  - Atlantis Press
SP  - 234
EP  - 236
SN  - 2352-5401
UR  - https://doi.org/10.2991/peee-15.2015.63
DO  - 10.2991/peee-15.2015.63
ID  - Lin2015/04
ER  -