Nano Archive

Synthesis and photocatalytic activity of nano-sized iron oxides

Khedr, M. H. and Halim, K. S. Abdel and Soliman, N. K. (2009) Synthesis and photocatalytic activity of nano-sized iron oxides. Materials Letters, 63 (6-7). 598 - 601.

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Nano-sized iron oxide powder with average crystallite sizes 35, 100 and 150 nm was prepared by thermal evaporation and co-precipitation techniques. The synthesized powders were characterized by X-ray diffraction analysis technique, transmission electron microscope (TEM) and scanning electron microscope (SEM). The prepared powders were tested as catalysts for the photo catalytic decomposition of Congo red dye. The effect of crystal size of iron oxides on the rate of decomposition of Congo red dye was investigated in visible light as well as in the absence of light. The experimental results show that both iron oxides with crystallite size 35 and 150 nm cause complete decomposition of Congo red dye while iron oxide particles with crystallite size 100 nm were unable to decompose the dye.

Item Type:Article
Uncontrolled Keywords:Iron oxides; Nanomaterials; Congo red dye; Decomposition reaction
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:6609
Deposited By:SPI
Deposited On:10 Feb 2010 15:03
Last Modified:10 Feb 2010 15:03

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