Open AccessMorphology and structure study of polygon ZnO nanorods: Biomedical applications
Author(s) -
Parastoo Khalili,
Majid Farahmandjou
Publication year - 2021
Publication title -
materials engineering research
Language(s) - English
Resource type - Journals
ISSN - 2630-4503
DOI - 10.25082/mer.2021.01.001
Subject(s) - wurtzite crystal structure , scanning electron microscope , transmission electron microscopy , nanorod , materials science , zinc , morphology (biology) , energy dispersive x ray spectroscopy , calcination , spectroscopy , crystallography , chemical engineering , analytical chemistry (journal) , nuclear chemistry , nanotechnology , chemistry , metallurgy , composite material , chromatography , biochemistry , physics , quantum mechanics , biology , engineering , genetics , catalysis
In this study, zinc oxide (ZnO) nanoparticles (NPs) were first synthesized using co-precipitation method in the presence of Zn(NO3)2.6H2O precursor and calcined at different temperature of 450 oC and 1000 oC. Samples were then characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The XRD study revealed the hexagonal wurtzite structure for annealed samples. SEM images showed tthat he morphology of the ZnO NPs changed from sphere-like shape to polygon shape by increasing temperature. The exact size of NPs were measured by TEM analysis about 40 nm for as-prepared samples. The EDS analysis demonstrated an increasing level of Zn element from 28.5 wt% to 50.8 wt% for as-synthesized and annealed samples, respectively.