SYNTHESIS AND CHARACTERIZATION OF TiO2 AND ZnO NANOPARTICLES

Abstract

In this experimental study, TiO2 nanoparticles were synthesized using an ultrasound-assisted method,

while the ZnO nanoparticles were fabricated using a chemical precipitation method. Results of X-ray

diffraction indicate that the fabricated TiO2 nanoparticles have a tetragonal anatase phase and ZnO

nanoparticles have a hexagonal wurtzite phase. The calculated crystallite size of the fabricated

nanoparticles using the Debye-Scherrer formula was consistent with the values estimated using the W-H

plot and SSP methods. Crystallographic parameters of the XRD patterns were used to examine the

dislocation density, morphology index, and specific surface area of the synthesized nanoparticles. The

SEM images demonstrated uniform TiO2 and ZnO nanostructures and suggest that both TiO2 and ZnO

nanoparticles were predominantly spherical in shape. The average grain size of 50.03 nm was observed

for synthesized TiO2 nanoparticles and 40.96 nm for ZnO nanoparticles.