은이 처리된 활성탄의 물리화학적 특성과 항균 특성

The physicochemical properties and the antibacterial effects of Ag-treated activated carbon

  • 발행 : 1999.06.01

초록

본 연구에서는 은이 처리된 활성탄에 물리화학적 특성과 항균성에 대하여 연구하였다. 은이 처리된 활성탄에 대한 흡착등온곡선은 대표적인 Type-I 형태를 나타내었다. 출발물질의 비표면적은 $1440\;m^{2}/g$를 나타낸 반면에 금속이 처리된 활성탄은 $740~1110\;m^{2}/g$에 범위에 분포하였다. 또한 이들 시료에 대하여 t-plot, ${\alpha}_{s}$}-plot와 DR-plot로부터 미세 동공부피를 구하였다. SEM 연구로 부터 활성탄의 표면에 은이 균일한 분포와 상당히 균일한 동공 분포를 확인하였다. 그리고 최종적으로 은이 처리된 활성탄에 대하여 E. coli에 대한 항균효과에 대하여 토론하였다.

We studied th physicochemical properties and the antibacterial effects of the Ag-treated activated carbon. The adsorption isotherms for the series of Ag-impregnated activated carbons represented typical Type-I. The surface area of the impregnated carbon was in the range of $740~1110\;m^{2}/g$, while the surface area of starting materials was $1440\;m^{2}/g$. Using t-plot, ${\alpha}_{s}$}-plot as well as DR-plot, and the volume of micropore was obtained. From the SEM study, the highly developed porous structure and the homogeneous distribution of Ag on the surface of activated carbon were confirmed. Finally, antibacterial effects of Ag-treated carbon aginst E. coli was discussed.

키워드

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