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

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.

Keywords

active carbon fiber;adsorption;activation;nanoparticle

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