Journal
MATERIALS LETTERS
Volume 259, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2019.126853
Keywords
Green synthesis; Whey; ZnO; Nanoparticles
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Zinc oxide (ZnO) nanoparticles were successfully synthesized using a whey-assisted sol-gel method. X-ray diffraction (XRD) and Raman spectroscopy analysis revealed a wurtzite crystalline structure for ZnO nanoparticles with no impurities present. Transmission electron microscopy (TEM), (XRD) observations, and UV-Vis absorption spectroscopy results showed that with an increase in calcination temperature from 400 to 1000 degrees C, the size of nanoparticles increases from 18.3 to 88.6 nm, while their optical band gap energy decreases to similar to 3.25 eV. The whey-assisted sol-gel method proved to be highly efficient for the synthesis of crystalline ZnO nanoparticles whose applications are of great interest in material science technology. (C) 2019 Elsevier B.V. All rights reserved.
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