DOI QR코드

DOI QR Code

Synthesis of FeOOH by Ozone Oxidation Using Ferrous Sulfate(Effect of Ozone Concentration and Reaction Time)

황산제일철 용애그이 오존산화에 의한 FeOOH 합성(오존농도 및 반응시간의 영향)

  • Kim Sam-Joong (Department of Materials Science and Engineering, Chungnam National University) ;
  • Song Kyung-Sub (Department of Materials Science and Engineering, Chungnam National University) ;
  • Eom Tae-Hyoung (Department of Materials Science and Engineering, Chungnam National University) ;
  • Suhr Dong-Soo (Department of Materials Science and Engineering, Chungnam National University)
  • Published : 2005.12.01

Abstract

The influences of the oxidant($O_2\;and\;O_3$) on the FeOOH formation were studied with fixed $FeSO_4{\cdot}7H_2O$ concentration (0.5M) and NaOH equivalent ratio(0.5). The characteristics of the synthesized powders were evaluateed by XRD, and equantitative phase analysis. $\alpha-FeOOH$ (Geothite) and/or $\gamma-FeOOH$ was promoted when $O_3$ was used as a oxidant which is stronger oxidizing agent than $O_2$.

Keywords

References

  1. A. Kato and F. Tokunaga, Powder and Powder metallurgy(Japan), 24, 1 (1977)
  2. S. Itoh, I. Endo, K. Maki and A. Kosaka, Iron and Steel (Japan), 8, 1035 (1976)
  3. A. Kato, H. Ishimatsu and Y. Suyama, Powder and Powder metallurgy(Japan), 26, 13 (1979)
  4. T. Obt and T. Ohkubo, Iron and Steel(Japan), 14 (1984)
  5. T. Takada, Chemistryand Industry(Japan), 37, 817 (1984)
  6. M. Kondo, S. Nakajima, T. Hirashaku, Powder and Powder metallurgy(Japan), 29, 236 (1982) https://doi.org/10.2497/jjspm.29.236
  7. T. Misawa, K. Hashimoto and S. Shimodaira, Corrosion Sciences, 14, 131 (1974) https://doi.org/10.1016/S0010-938X(74)80051-X
  8. M. Kondo, S. Nakajima, K. Watabe, K. Miki, T. Hirashaku, Sumitomo Heavy Machinery Review(Japan), 25, 40 (1977)
  9. T. Takada, Electric Chemistry(Japan), 37, 328 (1969)
  10. S. J. Kim, D. S. Suhr, T. H. Eom, K. S. Song, J. S. Roh, J. Kor. Mater. Res., 14(5), 353 (2004) https://doi.org/10.3740/MRSK.2004.14.5.353
  11. J. H. Oh, S. H. Lee, N. K. Kang and M. Kim, J. Kor. Inst. Met. & Mater., 31(10), 1345 (1993)
  12. J. C. Tayler, Powder Diffraction, 6(1), 2-9 (1991) https://doi.org/10.1017/S0885715600016778