Hydrothermal method was used for the preparation of tin oxide
nanoparticles in the presence of isoamyl alcohol as solvent for
surface directing agent. The effect of varying concentration of
precursor and solvent was studied while other parameter like time
and temperature were kept constant throughout the experiments. The
nanoparticles were characterized by X-ray Diffraction, Fourier
Transform Infrared Spectroscopy, Scanning Electron Microscope and
Thermal Gravimetric analysis. Functional groups was confirmed by
FTIR. Particle size was calculated by XRD analysis as well as TEM
images while TGA gave information about the percentage weight loss
with change in temperature. Morphology of particles was determined
through SEM images. SnO2 nanoparticles were used as photocatalysts
for the degradation of Methyl Green (MG), which is an abundant
organic pollutant of industrial waste water. Degradation of MG
under UV-Vis was also confirmed by High Performance Liquid
Chromatography (HPLC). It was found that nanoparticles synthesized
at different dielectric constant of solvent greatly influenced the
rate of degradation.
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