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Ali Akbar Ashkarran

Ali Akbar Ashkarran

Academic rank: Assistant Professor
ORCID:
Education: PhD.
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Faculty:
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Phone: 01135302485

Research

Title
Synthesis and Characterization of ZrO2 Nanoparticles by an Arc Discharge Method in Water
Type
JournalPaper
Keywords
arc discharge, DI water, photocatalytic activity, ZrO2 nanoparticles
Year
2011
Journal Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry
DOI
Researchers Ali Akbar Ashkarran ، Seyed Mahyad Aghigh ، Seyedeh Arezoo Ahmadi Afshar ، Mona Kavianpour ، Mohammad Ghorannevis

Abstract

ZrO2 nanoparticles were produced by high current electrical arc discharge of zirconium electrodes in deionized (DI) water. A mixture of nanocrystalline ZrO2 monoclinic and tetragonal phase form based on X-ray diffraction (XRD) analysis. Dynamic light scattering (DLS) result indicates that the size of the particles increases by increasing the arc current. Absorption spectroscopy of the samples shows a red shift on absorption edge by increasing the arc current. Band gap of the produced ZrO2 nanoparticles at 10 A arc current corresponds to 5.4 eV, which decreases to 5 eV by increasing the arc current up to 20 A.