금속-활성탄의 열처리 효과

오원춘; Won Chun Oh

Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.5, 434-437, August, 2002

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금속-활성탄의 열처리 효과

Heat Treatment Effect of Metal-Activated Carbon

오원춘^†

한서대학교 화학과, 충남 356-706

Won Chun Oh^†

Department of Chemistry, Hanseo University, Chungnam 356-706, Korea

E-mail:

초록

흡착등온곡선으로부터 얻어낸 결과에 따르면, 금속 처리활성탄의 농도와 열처리효과에 의존하여 Type I의 변형된 형태를 나타내고 있으며 유사 Type I 형태를 보이고 있다. 열처리하여 표면 개질된 금속 활성탄의 SEM 성상 결과에 따르면, 처리된 금속은 원형의 돌기상으로 변하였을 뿐만 아니라, 표면 blocking되었던 부분을 상당량 드러내 보이고 있다. DSC 분석결과에 따르면, 열처리 후에 금속처리 활성탄의 열역학적 곡선은 모두 유사한 형태를 나타내었다. 특히, 열처리 후에 엔탈피 형성 값은 낮은 농도와 높은 농도 사이에서 많은 차이를 보이고 있었다.

According to experimental adsorption isotherms, then types are shown as Type I and transformed similar Type I depending on the metal concentration and heat treatment effect of metal-activated carbon. From the SEM image analysis, metal complexes on the surface of metal-treated activated carbon are transformed from surface coverage state to polyp statue, as well as blocked surface and pore structure is changed to opened and unblocked structure. The results of the DSC analysis for the metal-treated activated carbon show very similar endothermic curves for all samples. Especially, it shows that enthalpy formation of metal-activated carbon after heat treatment is very different between lower and higher concentrations.

Keywords:activated carbon;adsorption isotherm;heat treatment;SEM;DSC

[References]

Oya A, Yoshida S, Abe Y, Iizuka T, Makiyama N, Carbon, 31, 71 (1993)
Oh WC, Kim BS, Lee YH, Kim JG, Kim MK, Ko YS, Adsorption and Surface Properties of Metal Treated Activated Carbon, Proceeding of International Symposium on carbon Science and Technology for New Carbons, Tokyo in Japan, 494 (1998)
Sunuda K, Kikuchi Y, Hashimoto K, Fujishima A, Environ. Sci. Technol., 32, 5 (1998)
Kawabuchi Y, Sotowa C, Kishino M, Kawano S, Whitehurst DD, Mochida I, Langmuir, 13(8), 2314 (1997)
Raihan S, Ahmed N, Macaskie LE, Lloyd JR, Appl. Microbiol. Biotechnol., 47(4), 352 (1997)
Kojima A, Sato M, Yamada T, Tanso, 187, 101 (1999)
Oh WC, Kim BS, Lee YH, Kim JG, Kim MK, Ko YS, Anal. Sci. Technol., 11, 4 (1998)
Oh WC, Kim BS, Oh HJ, Kim MK, J. Korean Assoc. Crystal Growth, 9, 339 (1999)
Oh WC, Kim BS, Lee YH, Kang SM, Lim CS, Kim IK, Ko YS, Adsorption Properties of Metal Treated Activated Carbon, Science and Technology of Carbon-Extended Abstracts, Strasbourg/France, 1, 337 (1998)
Patrick JW, Porosity in Carbon : Characterization and Applications, 223, Edward Arnold (1995)
Oh WC, Kim JG, Kim MK, Anal. Sci. Technol., 12, 105 (1999)
Mikhail R, Microstructure and Thermal Analysis of Solid Surface, ch. 2, John Wiley & Sons (1983)
Oh WC, Kim BS, Lee YH, Kim JK, Kim MK, Cho SH, Ext. Abs. 24th Bioennial Conf. on Carbon, 342, Charleston/U.S.A. (1999)

[Referenced By]

[1] Oya A, Yoshida S, Abe Y, Iizuka T, Makiyama N, Carbon, 31, 71 (1993)

[2] Oh WC, Kim BS, Lee YH, Kim JG, Kim MK, Ko YS, Adsorption and Surface Properties of Metal Treated Activated Carbon, Proceeding of International Symposium on carbon Science and Technology for New Carbons, Tokyo in Japan, 494 (1998)

[3] Sunuda K, Kikuchi Y, Hashimoto K, Fujishima A, Environ. Sci. Technol., 32, 5 (1998)

[4] Kawabuchi Y, Sotowa C, Kishino M, Kawano S, Whitehurst DD, Mochida I, Langmuir, 13(8), 2314 (1997)

[5] Raihan S, Ahmed N, Macaskie LE, Lloyd JR, Appl. Microbiol. Biotechnol., 47(4), 352 (1997)

[6] Kojima A, Sato M, Yamada T, Tanso, 187, 101 (1999)

[7] Oh WC, Kim BS, Lee YH, Kim JG, Kim MK, Ko YS, Anal. Sci. Technol., 11, 4 (1998)

[8] Oh WC, Kim BS, Oh HJ, Kim MK, J. Korean Assoc. Crystal Growth, 9, 339 (1999)

[9] Oh WC, Kim BS, Lee YH, Kang SM, Lim CS, Kim IK, Ko YS, Adsorption Properties of Metal Treated Activated Carbon, Science and Technology of Carbon-Extended Abstracts, Strasbourg/France, 1, 337 (1998)

[10] Patrick JW, Porosity in Carbon : Characterization and Applications, 223, Edward Arnold (1995)

[11] Oh WC, Kim JG, Kim MK, Anal. Sci. Technol., 12, 105 (1999)

[12] Mikhail R, Microstructure and Thermal Analysis of Solid Surface, ch. 2, John Wiley & Sons (1983)

[13] Oh WC, Kim BS, Lee YH, Kim JK, Kim MK, Cho SH, Ext. Abs. 24th Bioennial Conf. on Carbon, 342, Charleston/U.S.A. (1999)