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Studies ZnO Nanoparticles Using Nuclear Technique (DBES), SEM & EDX |
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PP: 5-8 |
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doi:10.18576/jrna/090102
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Author(s) |
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H. Ibrahim,
M. Abdel-Rahman,
Emad A. Badawi,
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Abstract |
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| A comprehensive study of the effect of chelating agent on the microstructural properties, particle size, and elemental composition of ZnO nanoparticles (NPs) synthesized by citrate sol-gel method is presented. Crystal structure, crystallite size, lattice parameters and micro-strain, as well as defect and dislocation density of ZnO NPs are investigated using X-rays diffraction (XRD) and positron annihilation Doppler broadening energy spectroscopy (DBES). ZnO NPs size and elemental composition are studied using scanning electron microscopy (SEM) and energy dispersive X-ray analysis, respectively. Using Positron Annihilation Doppler broadening Energy Spectroscopy (DBES). ZnO NPs size and elemental composition are studied using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX), respectively. The correlation between microstructural properties and DBES line-shape parameters at different chelating agent concentrations is also examined and published. Crystallite plot using Popa rules model revealed that crystallites at intermediate chelating agent concentrations are more isotropic as shown below, with clear spherical symmetry around optimum nucleation conditions. Good agreement between SEM estimated ZnO NPs size and XRD calculated crystallite size is observed around optimum nucleation conditions as shown before. S-parameter and W-parameter as a function of citric acid concentrations also confirm the behavior of isotropic and anisotropic as shown by Popa rule model XRD and Doppler broadening parameters. |
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