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금속함유 활성탄소섬유에 의한 수중 페놀흡착
Adsorption of Phenol from Aqueous Solution by Metal-containing ACFs
충남대학교 화학공학과
Department of Chemical Engineering, Chungnam National University, Korea
HWAHAK KONGHAK, February 2001, 39(1), 54-58(5), NONE
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Abstract
Ag, Cu와 Co를 각각 1 wt% 함유시킨 석유 핏치계 활성탄소섬유를 제조하고, 이들의 수중 페놀에 대한 흡착능력을 평가하였다. Ag, Cu함유 활성탄소섬유는 20Å미만의 미세공이 발달하는데 비하여 Co함유 활성탄소섬유는 미세공과 함께 30-40Å, 200-300Å의 두 중기공 영역이 발달하였다. 요오드 흡착력은 Ag함유 활성탄소섬유가 우수하였으며, 메틸렌블루와 같은 고분자의 흡착은 Co함유 활성탄소섬유가 효과적이었다. 금속함유 활성탄소섬유의 페놀흡착속도는 활성탄에 비하여 18-180배 빠르며, 제거율도 우수하였다. 파괴점에서 페놀의 흡착량은 금속을 함유하지 않은 활성탄소섬유가 86.4mg/g인데 비하여 Cu함유 활성탄소섬유는 152.4mg/g으로 약 1.8배의 흡착능력을 보였다.
1wt% Ag, Cu and Co-containing Activated Carbon Fibers(ACFs) were prepared and the adsorption abilities of each ACFs for phenol from aqueous solution were investigated. The average pore diameter of Ag and Cu-containing were 20Å, while Co-containing ACF have shown two mesopore regions of 30-40Å and 200-300Å with micropores. Iodine adsorption capacity of Ag-containing ACF is much better than that of other ACFs. The Co-containing ACF with mesopores is more efficient than other adsorbents for the adsorption of polymer such as methyleneblue. The adsorption rate of metal -containing ACFs for phenol is 18-180 times faster than that of Activated Carbon(AC). The adsorption amount of phenol on Cu-ACF at breakpoint was 1.8 times larger than that of non metal-containing ACF.
Keywords
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