Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Photoelectrochemical Degradation of Perchlorate Ions by TiO2

산화티탄의 광전기화학 특성을 이용한 퍼클로레이트 이온 제거

  • Min, Hyung-Seob (Materials Science and Technology Research Division Korea Institute of Science and Technology) ;
  • Lee, Jeon-Kook (Materials Science and Technology Research Division Korea Institute of Science and Technology)
  • 민형섭 (재료기술 연구본부 한국과학기술연구원) ;
  • 이전국 (재료기술 연구본부 한국과학기술연구원)
  • Published : 2008.08.31
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Abstract

Titanium oxide films and powders are attached onto carbon cloths via RF reactive sputtering and an epoxy resin mixture, respectively. $TiO_2$/carbon composite materials were used to investigate the photoelectrochemical degradation of perchlorate ions in water. The energy band gaps of the RF-sputtered $TiO_2$ thin films ranged from 3.35-3.44 eV. A photocurrent of the powdered $TiO_2$ as illuminated by ultra-violet light for 30 min. was $2.79\;mA/cm^2$. Perchlorate ions in water were shown to be degradable by a UV-illuminated $TiO_2$ powder/carbon/Nafion/carbon composite.

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References

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