Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Development of Rhodamine-Based Fiber Optic Sensor for Detection of Mercury in Aqueous Environments

수용액 환경에서 수은 측정을 위한 로다민 기반의 광섬유 센서 개발

  • Lee, Ae Ri (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Kim, Yong Il (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Kim, Beom Kyu (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Park, Byung Gi (Department of Energy & Environmental Engineering, Soonchunhyang University)
  • 이애리 (순천향대학교 에너지환경공학과) ;
  • 김용일 (순천향대학교 에너지환경공학과) ;
  • 김범규 (순천향대학교 에너지환경공학과) ;
  • 박병기 (순천향대학교 에너지환경공학과)
  • Received : 2014.03.17
  • Accepted : 2014.05.22
  • Published : 2014.05.31
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Abstract

A Rhodamine-based fiber-optic sensor has been developed to detect mercury ions in aqueous environments. The fiber-optic sensor was composed of a mercury-sensing thin film, plastic optical fibers, and a spectrometer. The mercury-sensing thin film with the synthesized Rhodamine derivatives was fabricated with Sol-Gel process. A light emitted by a light source is guided by plastic optical fibers into the thin film in an aqueous solution and a reflected light is analyzed with the spectrometer. The experiment exhibits that an absorbance in the thin film is increased as mercury concentration is increased in the solution and the absorbance by mercury is higher than that by other heavy metals. The fiber-optic sensor exhibits high chromogenic phenomenon of mercury ions among various heavy metals and the correlation between absorbance and mercury concentration in the aqueous environments.

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References

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