TITLE:
Development of Silica Nanoparticle from Corn Cob Ash
AUTHORS:
Elvis A. Okoronkwo, Patrick Ehi Imoisili, Smart A. Olubayode, Samuel O. O. Olusunle
KEYWORDS:
Corn Cob, Silica, Sol-Gel, Nanoparticle, X-Ray Diffraction
JOURNAL NAME:
Advances in Nanoparticles,
Vol.5 No.2,
May
19,
2016
ABSTRACT:
Silica
from corn cob ash (CCA) was extracted via sol-gel, and nanostructured with
templating concept, these resulted in silica nanoparticle. Silica and mineral
contents of CCA were determined by X-ray fluorescence (XRF). X-ray diffraction
(XRD) patterns revealed amorphous nature of extracted silica. Fourier transform
infrared (FTIR) data indicated the presence of siloxane and silanol groups.
X-ray diffraction (XRD) of nanostrurtured silica reviled average particle size
of 54 nm, Scanning electron microscopy/energy dispersive X-ray spectroscopy
(SEM/EDS) study indicates the particles to possess disorder morphology with the
particle attached to each other through grain boundary to form agglomerated
structure, and SEM analysis shows that particle size varies from 44 nm - 98 nm
in diameter, with an average diameter of 55nm. EDS spectrum confirms SiO2.