| 초록 |
The influences of the O2 and O3 oxidation, oxygen flux and NaOH equivalent ratio and reaction time on the iron oxide formation were studied with fixed ferrous sulfate concentration(0.5M FeSO4•7H2O) at room temperature. Geothite(α-FeOOH) and/or Lepidocrocite (γ-FeOOH) were synthesized depending on the reaction conditions. The characteristics of the synthesized powders were evaluated by pH meter, XRD, SEM, and quantitative phase analysis. Same oxygen flux, aspect ratio(the major/minor axis ratio) were O3 oxidation larger than O2, and maximum aspect ratio were 2ℓ/min with oxygen flux. |
