Study on the Preparation and Particle Size Control of Silica Sphere in a Sol-Gel Process

Abstract:

Silica sphere has wide applications not only in the field of physical chemistry dealing with dynamic behavior and stability of particulate systems, but also in industries including catalysts, ceramics, pigments, pharmacy, etc. However, the control on the particle size is a key factor in the preparation process of silica sphere. In this paper, silica sphere with uniform sphere morphology and amorphous structure was prepared by a sol-gel method, and the control of particle size was emphatically studied. The results showed that the particle size of the as-prepared silica sphere was obviously influenced by the raw materials concentration. The average size of the product increased from 0.66 μm to 0.90 μm when ethanol concentration increased from 7.14M to 9.55M, increased from 0.50 μm to 0.90 μm with the increase of ammonia concentration in the range of 1.88M to 2.36M, and increased from 0.47 to 0.90 μm while tetraethoxysilane concentration increased from 0.08M to 0.11M. Further study indicated that the silica particle size was also influenced by reaction temperature, it increased with the increase of temperature from 26°C to 28°C, and decreased with the further increase of temperature in the scope of 28°C to 32°C.

• Periodical: Advanced Materials Research (Volume 787)
• Pages: 52-57
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.787.52
• Online since: September 2013
• Authors: Ying Qiu, Shu Chun Hu, Jing Zhai, Zhi Jian Lin, Wen Feng Liu, Xiao Lang Chen, Jing Cui
• Keywords: Hydrolysis, Particle Size, Silica Sphere, Sol-Gel

References

[1] E.L. Margelefsky, R.K. Zeidan and M.E. Davis: Chemical Society Reviews Vol. 37 (2008), pp.1118-1126.

[2] A.P. Philipse, A. Vrij: Chemical Physics Vol. 87 (1987), pp.5634-5643.

[3] K.K. Unger, G. Jilge and R Janzen: Chromatography Vol. 359 (1986), pp.61-72.

[4] H. Liu, D. Takagi, S. Chiashi and Y. Homma: Carbon Vol. 48 (2010), pp.114-122.

[5] G.Y. Bae, J. Jang and Y.G. Jeong: Journal of Colloid and Interface Science Vol. 344 (2010), pp.584-587.

[6] M.D. Sacks, T.Y. Tseng: Am. Ceram. Soc. Vol. 67 (1984), pp.526-537.

[7] A. Guerrero-Martínez, J. Pérez-Juste and L.M. Liz-Marzán: Advanced Materials Vol. 22 (2010), pp.1182-1195.

DOI: 10.1002/adma.200901263

[8] D. Napierska, L.C.J. Thomassen and V. Rabolli: Small Vol. 5 (2009), pp.846-853.

[9] S. Ivorra, P. Garcés and G. Catalá: Materials and Design Vol. 31 (2010), pp.1553-1558.

[10] M.R. Arefi, M.R. Javaheri and E. Mollaahmadi: Journal of American Science Vol. 7 (2011), pp.231-238.

[11] C.G., Tan, B.D. Bowen and N. Epstein: Colloid and Interface Science Vol. 118 (1987), pp.290-293.

[12] C.J. Brinker, G.W. Scherer: Sol Gel Science, (Academic Press, San Diego 1990).

[13] C.J. Brinker: Journal of Non-Crystalline Solids Vol. 100 (1988), pp.31-50.

[14] W. Stöber, A. Fink and E. Bohn: Colloid and Interface Science Vol. 26 (1968), pp.62-69.

[15] G.H. Bogush, M.A. Tracy and C.F. Zukoski: Non-Crystalline Solids Vol. 104 (1988), pp.95-106.

DOI: 10.1016/0022-3093(88)90187-1

[16] A.K.V. Helden, J.W. Jansen and A. Vrij: Colloid and Interface Science Vol. 81 (1981), pp.354-368.