Synthesis and Characterization of Silica Nanoparticles

R. Aghababazadeh; S. Tabatabae; Ali Shokuhfar; A.R. Mirhabibi

doi:10.4028/www.scientific.net/SSP.121-123.49

Paper Titles

Laser Induced Surface Nanostructuring on Ultra-Thin Amorphous Si Films
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Electrochemical Pore Etching in n- and p-Type Ge
p.37

Synthesis and Characterization of Nanocrystalline TiO₂ Doped with 2 at.% Sc³⁺ and V⁵⁺ Ions
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Formation of α-Fe₂O₃ Nanoflakes by Heating Fe in Air
p.45

Synthesis and Characterization of Silica Nanoparticles
p.49

A Study on the Preparation of Nano-Crystalline Barium Titanate Powder by a Sol-Gel Method
p.53

Defect Engineering in Self-Assembled 3D Photonic Crystals
p.57

Gas-Sensitive Properties of Fe₂O₃ Nanoparticles Prepared by Laser-Induced Vapor-Phase Reaction
p.61

A Direct Route to Active Silica Nanoparticles
p.65

HomeSolid State PhenomenaSolid State Phenomena Vols. 121-123Synthesis and Characterization of Silica...

Synthesis and Characterization of Silica Nanoparticles

Abstract:

Currently there are several models discussed to describe the formation of monodispersed silica particles. Monodisperse colloidal silica was prepared from tetraethoxysilane in mixture of ammonia, water and ethanol. Chemical system reaction permits the controlled growth of silica nanoparticles and subsequent condition of silicic acid in alcoholic solution. The molar ratio of NH4OH, C2H5OH and H2O has a significant effect on particle size and specific surface area of silica particles. The nature of particles was evaluated using X-ray diffraction, energy dispersive spectroscopy (EDS) and BET. The morphology of particles were determined by scanning electron microscopy (SEM) and transmission electron microscopy(TEM).