화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.2, 156-161, April, 2002
화학적 활성화에 의한 자당 활성탄의 제조
Preparation of Activated Carbon from Sucrose by Chemical Activation
E-mail:
초록
활성탄은 톱밥, 야자각, coal, coke, 커피 폐기물, 고추씨 등과 같은 원료로부터 제조된다. 본 연구에서는 sucrose을 원료로 하여 NaOH와 ZnCl2를 사용하여 화학적 활성화법으로 활성탄을 제조하였다. 활성탄 제조 공정은 탄화, 활성화, 수세 및 건조의 순으로 진행하였다. 활성탄의 물리적 특성을 알아보기 위해 77 K에서의 질소 흡착, BET식과 BJH식으로 분석하였다. 비표면적, 세공용적 및 세공크기값은 각각 513~1198 m(2)/g, 0.33~0.91 cm(3)/g, 15~19 Å로 계산되었다. 또한 제조한 활성탄의 세공 및 표면 구조를 알아보기 위해 SEM 분석을 실시하였다.
Activated carbons can be prepared from several raw materials such as wood, coconut shell, coal, coke, waste coffee, pepper-seed, etc. In this study, activated carbon was manufactured from sucrose by chemical activation with sodium hydroxide and zinc chloride. The preparation process for activated carbon was performed in the following sequence: carbonization, activation, washing and drying. The physical properties of activated carbon were characterized by the adsorption of nitrogen at 77 K, by using BET and BJH equation. The values of surface area, pore volume and pore size were calculated as 513~1198 m(2)/g, 0.33~0.91 cm(3)/g, 15~19 Å, respectively. The porosity and surface of this activated carbon were observed by SEM photographs.
  1. Gergova K, Eser S, Carbon, 34, 879 (1996) 
  2. Otawa T, Yamada M, Tanibata R, Kawakami M, Gas seperation technology. Elsevier (1990)
  3. Gergova K, Petrov N, Butuzova L, Minkova V, Isaeva L, J. Chem. Technol. Biotechnol., 58, 321 (1993)
  4. Siriwardane RV, Shen MS, Fisher EP, Poston JA, Energy Fuels, 15(2), 279 (2001) 
  5. Ferro-Gracia MA, Rivera-Utrilla J, Rodriguez-Gordillo J, Bautist-Toledo I, Carbon, 26, 363 (1988) 
  6. Tsai WT, Chang CY, Lee SL, Carbon, 35, 1198 (1998) 
  7. Ahmadpour A, Do DD, Carbon, 34, 471 (1996) 
  8. Brunauer S, Deming LS, Deming WE, Teller E, J. Am. Chem. Soc., 62, 1723 (1940) 
  9. Barrett EP, Joyner LS, Halenda PP, J. Am. Chem. Soc., 73, 373 (1951) 
  10. Kim HH, Experimental and Theoretical Studies on Physical Adsorption of Gases by Microporous Carbons, Ph. D. Dissertation, Univ. of Illinois at Chicago (1992)
  11. Sing KSW, Everett DH, Hall RAW, Moscou L, Pierotti RA, Rouquerol J, Siemieniewska T, Pure Appl. Chem., 57, 603 (1985)
  12. You SH, Kim HH, J. Korean Ind. Eng. Chem., 9(4), 509 (1998)
  13. Kim YJ, Lee JM, Kim HH, J. Korean Ind. Eng. Chem., 11(8), 883 (2000)
  14. Moene R, Boon H, Carbon, 34, 567 (1996) 
  15. Lillo-Rodenas MA, Lozano-Castello D, Cazorla-Amoros D, Linares-Solano A, Carbon, 39, 741 (2001) 
  16. Lillo-Rodenas MA, Lozano-Castello D, Cazorla-Amoros D, Linares-Solano A, Carbon, 39, 751 (2001) 
  17. Lu W, Chung DDL, Carbon, 39, 39 (2001) 
  18. Teng HS, Yeh TS, Ind. Eng. Chem. Res., 37(1), 58 (1998) 
  19. Lua AC, Guo J, Colloids Surf., 151, 179 (2001)
  20. Rodriguez-Reinoso F, Torrgrosa R, Venero A, Langmuir, 7, 350 (1991) 
  21. Roberts RA, Sing KSW, Tripathi V, Langmuir, 3, 331 (1987)