Growth of Hematite Nanostructures in Iron Foil for Environmental Cleaning

Abstract:

Hematite (Fe₂O₃) nanostructures were successfully grown on the surface of iron foil by simple thermal oxidation in air. The iron foil was heated at 300 – 700 °C for 8 h to produce Fe₂O₃ nanosheets and nanowires. The oxide layer is primarily composed of Fe₂O₃ with a small amount of magnetite (Fe₃O₄) and wustite (FeO). The photocatalytic activity of the Fe₂O₃ nanowires was investigated by degradation of methyl orange dye under 30 W UV light in the presence of a minute amount of hydrogen peroxide. The Fe₂O₃ nanowires exhibit excellent photocatalytic activity, wherein 2.5 ppm of the methyl orange was fully decomposed in 30 min.

• Periodical: Solid State Phenomena (Volume 266)
• Pages: 101-104
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.266.101
• Online since: October 2017
• Authors: Michelle Lenair Canaria, Jackie Lou Ramos, Charles Morgan Sayson, Mary Donnabelle L. Balela*
• Keywords: Hematite, Methyl Orange, Oxidation, Photocatalyst

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