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http://dx.doi.org/10.3740/MRSK.2004.14.5.353

Synthesis of Iron Oxide Using Ferrous Sulfate by Ozone Treatment  

Kim Sam-Joong (충남대학교 재료공학과)
Suhr Dong-Soo (충남대학교 재료공학과)
Eom Tae-Hyoung (충남대학교 재료공학과)
Song Kyung-Sub (충남대학교 재료공학과)
Roh Jea-Seung (충남대학교 재료공학과)
Publication Information
Korean Journal of Materials Research / v.14, no.5, 2004 , pp. 353-357 More about this Journal
Abstract
The influences of the ozone oxidation, reaction temperature and NaOH equivalent ratio on the iron oxide formation were studied with fixed ferrous sulfate concentration(0.5M $FeSO_4$ㆍ$7H_2$O). Geothite($\alpha$-FeOOH) and/or Magnetite ($Fe_3$$O_4$) were synthesized depending on the reaction conditions. The characteristics of the synthesized powders were evaluated by XRD, SEM and quantitative phase analysis. The synthetic conditions to get Goethite were quite different from the results of Kiyama's and the Goethite was conveniently synthesized at low temperature and at low NaOH equivalent ratio.
Keywords
ferrous sulfate; ozone; ozone oxidation; magnetite; goethite;
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