Influence of pH on Structure, Morphology and UV-Visible Spectra of ZnO nanorods.
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 11
Abstract
Zinc oxide (ZnO) nanoparticles are synthesized by using a simple chemical Sol-Gel chemical precipitation method. Zinc acetate, sodium hydroxide and distilled water as a starting materials. The stock solutions of Zinc acetate (0.75 M) and Sodium hydroxide (0.75) were used for synthesis of ZnO particles at different pH values (8, 9, 10, 11, and 12). Sol-Gel fabricated ZnO nanoparticles at different pH value were calcinated for two hours at 100 oC and characterized by using X-ray diffractometer, FTIR, Scanning Electron microscopy (SEM) and Uv-Visible spectrophotometer. The effect of pH on various characterizations was investigated. The XRD pattern exhibit wurtzite hexagonal crystal symmetry. The particle size estimated by using Debye-Scherrer relation was found varying between 25 to 37 nm on increasing pH of reaction mixture. The SEM micrographs show significant improvement in the surface morphology of ZnO rods with increasing pH values. UV –visible spectra exhibit considerable variation with pH values of reaction mixture used for preparation of ZnO NPs.
Authors and Affiliations
Ravangave L. S, Shaikh R. S
Keywords
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