Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Effect of Oxyfluorination of Activated Carbon Fibers on Adsorption of Benzene Gas Causing Sick House Syndrome

새집증후군 유발 벤젠가스 흡착에 미치는 활성탄소섬유의 함산소불소화 영향

  • Lim, Hyung Soon (Department of Fusion Technology for Climate Change, Hoseo University) ;
  • Kim, Min-Ji (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Kong, Eun Young (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Jeong, Jin-do (Department of Fusion Technology for Climate Change, Hoseo University) ;
  • Lee, Young-Seak (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
  • 임형순 (호서대학교 기후변화융합기술학과) ;
  • 김민지 (충남대학교 응용화학공학과) ;
  • 공은영 (충남대학교 응용화학공학과) ;
  • 정진도 (호서대학교 기후변화융합기술학과) ;
  • 이영석 (충남대학교 응용화학공학과)
  • Received : 2018.01.27
  • Accepted : 2018.03.04
  • Published : 2018.06.10
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Abstract

In this study, activated carbon fibers (ACFs) were treated by oxy-fluorination to improve the adsorption property of benzene gas, one of the gases causing sick house syndrome. Surface properties and pore characteristics of oxyfluorinated activated carbon fibers were confirmed by X-ray photoelectron Spectroscopy (XPS) and Brunauer-Emmett-Teller (BET), and adsorption properties of benzene gas were evaluated by gas chromatography (GC). As a result of XPS data, it was confirmed that the fluorine functional groups on activated carbon fibers surface increased with increasing the fluorine partial pressure. The specific surface area of all samples decreased after the oxyfluorination treatment, but the micropore volume ratio increased when the fluorine partial pressure was at 0.1 bar. The oxyfluorinated activated carbon fibers adsorbed 100 ppm benzene gas for an 11 h, it was found that the adsorption efficiency of benzene gas was improved about twice as much as that of untreated ones.

본 연구에서는 새집증후군 원인가스 중 하나인 벤젠 가스 흡착특성을 향상시키기 위하여 활성탄소섬유에 함산소불소화 처리를 실시하였다. 함산소불소화 처리된 활성탄소섬유 표면특성 및 기공특성은 X-선광전자분광기(XPS)와 Brunauer-Emmett-Teller (BET) 분석을 통해 확인하였으며, 벤젠 가스 흡착 특성은 가스크로마토그래피(GC)로 평가하였다. XPS 결과로부터 불소분압이 증가함에 따라 활성탄소섬유 표면의 불소관능기가 증가함을 알 수 있었다. 함산소불소화 처리 후 모든 샘플의 비표면적은 감소하였으나, 불소 분압이 0.1 bar일 때 그 미세기공 부피비가 증가하였다. 함산소불소화 처리된 활성탄소섬유는 11 h 동안 100 ppm의 벤젠 가스를 모두 흡착하였으며, 이는 미처리 활성탄소섬유와 비교하여 벤젠 가스 흡착효율이 약 2배 향상됨을 알 수 있었다.

Keywords

References

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