Iranian Journal of Ceramic Science & Engineering
Volume 8, Issue 4 (2-2020)
2020, 8(4): 69-79 |
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Synthsis of Ag2O2 Semiconductor Micropowder by Plasma Electrolysis Methode and its Optical Characterization. Iranian Journal of Ceramic Science & Engineering 2020; 8 (4) :69-79
URL: http://ijcse.ir/article-1-740-en.html
URL: http://ijcse.ir/article-1-740-en.html
Abstract: (2636 Views)
Plasma electrolysis is a novel method for synthesis and processing of materials and nanomaterials, which uses plasma-solution interaction. In this paper, a simple setup of pin-to-solution electrical discharge with aqueous solution of silver nitrate in normal air is used. Experimental observations show that by start of electrical discharge and formation of air plasma between metal pin and solution surface, a black material is produced at the plasma-solution interface and gradually spreads throughout the electrolyte and finally precipitates at the bottom of the vessel and is separated. XRD analysis shows that the synthesized material is Ag2O2. From the FESEM images, it is inferred that the powder contains micrometer particles. Ultraviolet-Visible-Near Infrared (UV-Vis-NIR) absorption spectrum reveals that the sample is a semiconductor with energy gap of 0.9-0.94 eV.
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