
Effects of Non-Ionic Surfactants Poly(ethylene glycol) and Tritonx100 on the Preparation of SiO2 Nanoparticles by Sol–Gel Process
SiO2 nanomaterials were prepared from a TEOS precursor via an acid catalyzed sol–gel processing in water media with two amphiphilic templates: poly(ethylene glycol) (PEG) and Triton X-100 (TX-100) separately. The resulting novel silica particles were characterized by
several techniques. The effect of surfactants element manifests crystallite size as measured from X-ray diffraction (XRD), surface morphology from Scanning Electron Microscopy (SEM) and using Fourier transform infrared spectroscopy (FTIR) for identification of material and impurities. The
structures of particles obtained by a sol–gel technique were found to depend strongly on the use and type of additive molecules added. The results showed that, the prepared SiO2 samples are amorphous in nature in powder form due to the boundaries diffuse to form discrete structures;
whereas Silica/PEG powder particles are more angular and irregular in shape than Silica/TX-100. The surfactants suppress the growth of SiO2 grains and agglomerate them. A surfactants-assisted sol–gel process shows an increase in intensity of diffraction peaks indicating an
improvement in the crystallinity of the material. The chemical changes were found from the FTIR results, peaks were observed at 3429 cm–1 and 3650 cm–1 in PEG and TX-100 samples due to stretching and 1643 cm–1 attributed to the bending vibrations
of –OH groups.
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Keywords: NANOPARTICLES; NON-IONIC SURFACTANTS; SIO2; SOL–GEL METHOD
Document Type: Research Article
Publication date: June 1, 2014
- Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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