Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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A Study on Characterization of Surface and Pore for Ag-impregnated Activated Carbon

은이 침착된 활성탄의 표면과 세공특성에 관한 연구

  • 김종규 (단국대학교 자연과학대학 화학과) ;
  • 오원춘 (한서대학교 화학과) ;
  • 김명건 (단국대학교 자연과학대학 화학과)
  • Received : 1998.04.13
  • Accepted : 1998.06.17
  • Published : 1998.10.10
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Abstract

The surface structure and the pore size distribution of the activated carbon impregnated with silver have been investigated. It has been confirmed that the impregnants had an effect only on the external surface, not on the internal surface and that adsorption isotherms of both impregnated and non-impregnated activated carbons were classified as a typical BET type-I. As the amount of the impregnants increased, the amounts of adsorption, the specific surface area, and the micropore volume decreased and the window blocking was observed. The average pore diameter of the activated carbon impregnated with silver was observed to show the constant values regardless of the amount of the impregnants.

은 침착된 활성탄의 표면 구조와 세공의 크기 분포등에 대하여 연구하였다. 침착물은 내부 표면에는 영향을 주지 않고 외부 표면에만 영향을 주는 것으로 나타났다. 또한 흡착 등온선은 침착되지 않은 활성탄이나 침착된 활성탄 모두 전형적인 BET 분류 type-I 임을 확인하였으며, 침착물 양이 증가할수록 흡착량이 감소하며 window blocking 현상이 나타남을 확인하였다. 침착물 양이 증가할수록 비 표면적 값은 감소하였으며, 미세세공 부피도 감소하였다. 은 침착된 활성탄의 평균 미세세공 반경은 침착물 양과는 무관하게 일정하였다.

Keywords

Acknowledgement

Supported by : 단국대학교

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