Synthesis and Characterization of ZnO Nanoparticles

Abstract

This study is focused on hydrothermal synthesis method of zinc oxide nanoparticles by using
ammonia and zinc chloride. Synthesized nanoparticles have been characterized by using Xray Diffraction, UV-vis and Photon Cross Correlation (PCCS) spectroscopies, TEM
analysis. ZnO thin films were prepared by spin coating method from the solution of ZnO
nanoparticles. XRD peak corresponds to hexagonal structure with cell parameter a=0.326
nm and c=0.522 nm. The grain size of zinc oxide nanoparticles has been determined 43.3
nm using the Scherrer formula. As a result of PCCS measurement, synthesized zinc oxide
nanoparticles have the mean diameter of ~96 nm of main particles with particle size
distribution range of from ~90 nm to ~99 nm. As the result of TEM, the respective size of
nanoparticles was around ~96 nm. ZnO nanoparticles were coated on glass and indium-tin
oxide (ITO) substrates. The photocatalytic activities were studied ITO substrates with ZnO
thin film. ZnO thin films were used as catalyst for reaction Cr(VI) into Cr(III).