지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이 논문의 연구 히스토리 (8)
2008
2006
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Fe(III)-impregnated activated carbon (Fe-AC) was applied in the treatment of synthetic wastewater containing phenol. From the impregnation of Fe(III) onto activated carbon(AC) at pH 9, approximately 0.2 %(w/w) of iron was impregnated onto AC. This Fe(III) impregnation causes a decrease of specific surface area (12 %) and micro pore volume (13 %) of Fe-AC compared to that of AC. The SEM image of Fe-AC shows a partial impregnation of iron oxide on the surface of AC, causing roughness of the surface and partial blocking of the surface pore inlet. Adsorption capacity of phenol onto AC and Fe-AC was investigated in batch test. In the adsorption kinetics, a rapid adsorption of phenol onto AC and Fe-AC was noted at initial reaction time and then reached a near complete equilibrium after 12 hrs. Adsorption of phenol onto AC was slightly greater than that of Fe-AC. From the pH-edge adsorption test, AC and Fe-AC showed a similar adsorption trend and adsorption efficiency over the entire pH range when 100 ppm of initial phenol was used. However, Fe-AC had approximately 10% lower adsorption capacity compard to AC over the entire pH range when 1,000 ppm of initial phenol was used. From the adsorption isotherm obtained with variation of the phenol concentration, the maximum adsorption capacity of phenol by AC and Fe-AC was identified as 200.0 g/Kg and 166.7 g/Kg, respectively.
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