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http://dx.doi.org/10.3740/MRSK.2006.16.11.687

Influence of the Precipitation Medium and Ultrasonic Wave on the Synthesis of Iron Oxide  

Lim, Jong-Ho (School of Nano Materials Eng., Chungnam National University)
Kim, Tae-Hyun (School of Nano Materials Eng., Chungnam National University)
Lee, Seoung-Won (School of Nano Materials Eng., Chungnam National University)
Publication Information
Korean Journal of Materials Research / v.16, no.11, 2006 , pp. 687-691 More about this Journal
Abstract
Synthesis of Iron oxides by air oxidation of $FeSO_4$ solutions in the presence of NaOH, Diethylenetriamine (DETA), Butylamine (BA) and influence of ultrasonic wave were investigated by XRD, SEM and particle size analyzer. As the DETA addition increased to 0.05 mol, $Fe_3O_4$ was formed with goethite($\alpha$- FeOOH) and $Fe_3O_4$ single phase was formed above 0.18mol of DETA. As the BA addition increased, the XRD peak intensity of (020) face of lepidocrocite($\gamma$-FeOOH) was developed until the formation of $Fe_3O_4$ and reduced the size of the iron oxide particles formed. Ultrasonic wave reduced the size of the iron oxide particles but gave little effects on the iron oxide particles synthesized by amine.
Keywords
amine; ultrasonic wave; goethite; lepidocrocite; magnetite;
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