Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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The Adsorption Characteristics by the Optimun Activation Process of PAN-based Carbon Fiber and SO2 Adsorption Characteristics by the Impregnated Nanoparticles

PAN계 ACF의 최적 활성화 공정에 따른 흡착특성과 나노입자 첨착에 의한 SO2 흡착특성

  • Lee, Jin-Jae (Department of Chemical Engineering, Hanyang University) ;
  • Kim, Young-Chai (Department of Chemical Engineering, Hanyang University)
  • 이진채 (한양대학교 공과대학 응용화학공학과) ;
  • 김영채 (한양대학교 공과대학 응용화학공학과)
  • Received : 2006.07.28
  • Accepted : 2006.09.05
  • Published : 2006.10.10
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Abstract

The carbonization and activation conditions for the PAN-based ACF of various grade were investigated to obtain the optimun activation condition with high surface area. And the surface properties and the absorption performance of toxic gas for terror were examined toward the PAN-ACF with the highest surface area. In the test results the surface area increased with increase of the activation temperature, but decreased with increase of the carbonization temperature. After carbonization condition ($900^{\circ}C$-15min) and activation condition ($900^{\circ}C$-30 min), we got the ACF with the highest surface area of $1204m^2/g$. In the absorption test of iodine and toxic gas for terror, this ACF showed more excellent absorption performance than the existing carbon-based adsorbent. Also, in order to give the function characteristic for a selective absorption, the stable nanoparticles of the Ag, Pt, Cu, Pd were prepared and impregnated on the PAN-based ACF in replacement of the existing method supporting metal catalysis. And were analyzed the surface characteristics and the $SO_{2}$ adsorption characteristics. In the $SO_{2}$ absorption performance test of the PAN-ACF with the impregnated nanoparticles, it wasn't change breakthrough time of Ag, Pt, Cu nanoparticle supported the PAN-ACF comparing with breakthrough time (326 sec) of the non supported PAN-ACF but Pd nanoparticle supported the PAN-ACF achieved excellent $SO_{2}$ absorption performance which has break-through time 925 sec.

탄화 및 활성화 조건을 매개체로 여러 등급의 Polyacrylonitrile (PAN)계 ACF (ACF : Activated Carbon Fiber)를 제조하여 최적의 비표면적을 나타내는 활성화 공정을 알아보았고, 가장 큰 비표면적을 갖는 PAN계 ACF에 대한 표면특성 및 독성가스 등에 대한 흡착특성을 분석하였다. 시험결과 활성화 온도가 증가할수록 비표면적이 증가하고 탄화 온도가 감소할수록 비표면적이 감소하였고, $900^{\circ}C$로 15 min간 탄화한 후 $900^{\circ}C$로 30 min간 활성화 공정을 거친 ACF가 $1204m^2/g$의 가장 높은 비표면적을 나타내었고 요오드 및 테러용 독성가스에 대한 흡착 성능시험 결과 기존의 흡착제보다 우수하였다. 또한 선택적 흡착을 위한 기능성을 부여하기 위하여 기존의 금속염을 침적하는 방법을 대체하여 비교적 안정화된 금속나노입자(Ag, Pt, Cu, Pd)를 제조하여 첨착하였고 이에 대한 표면특성 및 $SO_{2}$에 대한 흡착특성을 분석하였다. 금속나노입자 첨착 ACF에 대한 $SO_{2}$ 흡착성능 시험결과 Ag, Pt, Cu 나노입자를 첨착한 ACF는 무첨착 ACF의 파과시간(326 sec)과 비교 할 때 크게 변함이 없었으나 Pd 나노입자를 첨착한 ACF는 파과시간이 925 sec로 $SO_{2}$ 흡착성능이 매우 우수함을 알 수 있었다.

Keywords

References

  1. J. B. Donnet, Carbon Fibers, ed Jean. Baptiste, 1, 250, Marccel Dekker, New York (1998)
  2. M. Suzuki, Carbon, 32, 577 (1994) https://doi.org/10.1016/0008-6223(94)90075-2
  3. M. Suzuki, Adsortion Engineering, ed. J. Y. Son, 1, 24, Hyung sul, Seoul (2000)
  4. Z. Ryu, J. Zheng, M. Wang, and B. Zang, J. Colloid Interface Science, 230, 312 (2000) https://doi.org/10.1006/jcis.2000.7078
  5. I. Martin-Gullon, R. Andrews, M. Jagoyen, and F. Derbyshire, Fuel, 80, 969 (2001) https://doi.org/10.1016/S0016-2361(00)00186-1
  6. C. C. Leng and N. G. Pinto, Carbon, 35, 1375 (1997) https://doi.org/10.1016/S0008-6223(97)00091-2
  7. M. Yoshikawa, A. Yasutake, and I. Mochida, Appl. Catal. A, 173, 239 (1998) https://doi.org/10.1016/S0926-860X(98)00182-3
  8. W. C. Oh and Y. S. Lee, J. Korean Ind. Eng. Chem, 11, 212 (2000)
  9. W. C. Oh and C. S. Park, J. Ceramic Processing Research, 7, 37 (2006)
  10. D. A. Bulushev, I. Yuranov, E. I. Suvorova, P. A. Buffat, and L. Kiwi-Minsker J. Catal., 224, 8 (2004) https://doi.org/10.1016/j.jcat.2004.02.014
  11. Z. Bashir, Carbon, 29, 181 (1991)
  12. S. Brunauer, L. S. Deming, W. S. Deming, and E. Teller, J. Amer. Chem. Soc., 62, 1723 (1940) https://doi.org/10.1021/ja01864a025
  13. S. J. Park and K. D. Kim, Carbon, 39, 1741 (2001) https://doi.org/10.1016/S0008-6223(00)00305-5
  14. M. M. Dubinin, Progress in Surface and Membrane Science, 1, 340, Academic Press, New York
  15. S. Lowell and J. E. Shields, Powder Surface Area and Porosity, 1, 13, Chapman and Hall, New York (1984)
  16. S. J. Greggs and K. S. W. Sing, Adsorption, Surface Area and Porosity, 1, 41, Academic Press, New York
  17. M. Suzuki, Adsortion Engineering, ed. J. Y. Son, 1, 15, Hyung sul, Seoul (2000)
  18. U. Matatov-Meytal and M. Sheintuch, Catalysis Today, 102, 121 (2005) https://doi.org/10.1016/j.cattod.2005.02.015