센서학회지 (Journal of Sensor Science and Technology)

  • 제29권3호
  • /
  • Pages.211-214
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  • 2020
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  • 1225-5475(pISSN)
  • /
  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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금속산화물센서의 이산화염소 가스에 대한 감지거동에 관한 연구

A Study on the Detection Behavior of Chlorine Dioxide on Metal Oxide Sensors

  • 유준부 (강원대학교 전자정보통신공학부) ;
  • 변형기 (강원대학교 전자정보통신공학부)
  • Yu, Joon-Boo (Division of Electronis, Information & Communication Eng. Kangwon National University) ;
  • Byun, Hyung-Gi (Division of Electronis, Information & Communication Eng. Kangwon National University)
  • 투고 : 2020.05.20
  • 심사 : 2020.05.30
  • 발행 : 2020.05.31
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초록

Chlorine dioxide is very effective gas for sterilization or disinfection (in manufacturing), and does not produce harmful by-products after use. However, if its concentration exceeds 10 %, it become explosive and cannot be compressed or stored. Therefore, it is necessary to measure its concentration. In this study, the concentration of chlorine dioxide with a high oxidizing strength was measured using a metal oxide sensor. The sensor was a commercially available TGS series from Figaro. The sensitivity of the sensor was inversely proportional to a low concentration of chlorine dioxide gas below 6 ppm and returned to the initial resistance at about 6 ppm. When the gas concentration reached multiples of 10 ppm, resistance of the sensor increased to several megaohms.

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참고문헌

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  4. W. K. Jo, K. D. Kwon, J. I. Dong, and Y. Chung, "Comparison of household trihalomethanes exposure associated with use of municipal tap water treated with chlorine or ozone-chlorine", J. Environ. Sci., Vol.13, No. 7, pp. 627-635, 2004.
  5. https://tuttnauer.com/blog/sterilization-methods-summary (retrieved on Mar. 23, 2020)
  6. https://en.wikipedia.org/wiki/Chlorine_dioxide (retrieved on Mar. 23, 2020).