Journal
ULTRASONICS SONOCHEMISTRY
Volume 39, Issue -, Pages 504-510Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2017.05.012
Keywords
ZnO nanoparticles; Ultrasonic; Sol gel; Photocatalyst
Categories
Ask authors/readers for more resources
In this research, the effect of ultrasonic irradiation power (0, 75, 150 and 200 W) and time (0, 5, 15 and 20 min) on the structure, morphology and photocatalytic activity of zinc oxide nanoparticles synthesized by sol-gel method was investigated. Crystallographic structures and the morphologies of the resultant powders were determined by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD patterns showed that ZnO samples were crystallized in their pure phase. The purity of samples was increased by increasing the ultrasonic irradiation power and time. Not only did ultrasonic irradiation unify both the structure and the morphology, but also it reduced the size and prohibited particles from aggregation. The optical behavior of the samples was studied by UV-vis spectroscopy. Photocatalytic activity of particles was measured by degradation of methyl orange under radiation of ultraviolet light. Ultrasound nanoparticles represented higher degradation compared to non-ultrasound ones.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available