Influence of Poly (Ethylene Glycol) and Oleylamine on the Formation of Nano to Micron Size Spherical SiO₂ Particles

Abstract:

We report an eco-friendly synthesis of well–controlled, nano-to-micron-size, spherical SiO₂ particles using non-hazardous solvent and a byproducts-producing system. It was found that the morphology and size of spherical SiO₂ particles are controlled by adjusting the concentration of PEG and oleylamine, ethanol solvent selection, and reaction temperature. The SEM images show spherical-shaped silica particles with homogeneous particle-size distribution. Structural and optical properties of the silica particles were investigated by FT-IR absorption spectroscopy and photoluminescence. The resultant SiO₂ particles from the synthesis system were easily dispersed in both water and organic solvent.

• Periodical: Key Engineering Materials (Volume 521)
• Pages: 163-169
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.521.163
• Online since: August 2012
• Authors: Abdelaziz Rahy, S.J. Hong, Kap Seung Yang, Christopher Bunker, Mallikarjuna N. Nadagouda, Duck J. Yang
• Keywords: Eco-Friendly, Micron-Size, Nano-Size, Oleylamine, Polyethylene Glycol (PEG), Spherical SiO₂, Synthesis

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