Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Cyanide Degradation from Plating Wastewater Using Iron Oxide Nanocomposite Layer

산화철 나노구조박막 이용한 도금폐수내의 시안제거

  • Jang, Jun-Won (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Kim, Hye-Ran (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Lim, Hyeong-Seok (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Park, Jae-Woo (Department of Civil and Environmental Engineering, Hanyang University)
  • 장준원 (한양대학교 건설환경공학과) ;
  • 김혜란 (한양대학교 건설환경공학과) ;
  • 임형석 (한양대학교 건설환경공학과) ;
  • 박재우 (한양대학교 건설환경공학과)
  • Received : 2014.03.10
  • Accepted : 2014.04.22
  • Published : 2014.05.30
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Abstract

We synthesized the self-organized nanoporous oxide with potentiostatic anodization of iron foil. The iron oxide nanocomposite (INCs) were fabricated in 1M $Na_2SO_4$ containing 0.5wt% NaF electrolyte holding the potential at 20, 40 and 60 V for 20min, respectively. Field Emmision Scanning Electron Microscopy (FESEM) and X-ray Diffractometer (XRD) were used to evaluate the micromorphology and crystalline structure of INC film. Also, this study was performed to evaluate the fenton reaction using INC film with hydroperoxide for degradation of cyanide dissolved in water. In case of INC-40V in the presence of $H_2O_2$ 3%, the first-order rate constant was found to be $1.7{\times}10^{-2}min^{-1}$, and indicated to be $1.2{\times}10^{-2}min^{-1}$ on commercial hematite powder. This result is shown to be good performance enough to replace the powder type for treatment of wastewater.

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References

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