Plasma Synthesis And Characterization Of Iron- Hydroxide Nanomaterials
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Date
2018
Department
Physics
Program
Master of Science
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This item is made available by Morgan State University for personal, educational, and research purposes in accordance with Title 17 of the U.S. Copyright Law. Other uses may require permission from the copyright owner.
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Abstract
In this project, iron hydroxide nanoparticles were synthesized by a plasma solution method from iron aqueous solutions. The experimental conditions, pH values of solutions, voltage strengths, and synthesis temperatures were systematically studied. The phase of the produced hydroxide powders was characterized by X-ray powder diffraction and selected area electron microscopy. The crystalline size of the powders was calculated from the measured X-ray diffraction patterns and measured from transmission electron microscopic images. The morphology was examined by scanning electron microscopy and transmission electron microscopy. The optical properties of the nanoparticles were characterized by UV-vis spectroscopy, Raman scattering, and photoluminescence spectroscopy. The band-gap of the synthesized nanoparticles was measured as 3.1 – 3.3 eV and explained in their microstructures. The synthesized nanoparticles show paramagnetic at room temperature