A simple template-free sol-gel synthesis of spherical nanosilica from agricultural biomass

作者：Adam Farook^*; Chew Thiam Seng; Andas Jeyashelly

来源：Journal of Sol-Gel Science and Technology, 2011, 59(3): 580-583.

DOI：10.1007/s10971-011-2531-7

• Sol-gel technique
• Rice husk
• Template-free
• Nanosilica

Mesoporous silica nanoparticles with a spherical morphology have been synthesized from rice husk (agricultural biomass) by a simple, template-free synthetic approach, which was carried out via sol-gel technique at ambient condition. Transmission electron micrographs revealed the formation of spherical silica nanoparticles with an average diameter of 50.9 nm. From the nitrogen adsorption-desorption analysis, the rice husk silica shows a high specific BET surface area of 245 m(2) g(-1). The silica nanoparticles have a narrow pore size distribution of 5.6-9.6 nm.

• 出版日期2011-9