Korean Journal of Materials Research, Vol.14, No.5, 353-357, May, 2004
황산제일철 용액의 오존 처리에 의한 산화철 합성
Synthesis of Iron Oxide Using Ferrous Sulfate by Ozone Treatment
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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 FeSO4ㆍ7H2O). Geothite(α-FeOOH) and/or Magnetite (Fe3O4) 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.
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