열처리 다공성탄소를 통한 크롬(Cr+6)흡착

유상희; 김학수; 김학희

Journal of the Korean Industrial and Engineering Chemistry, Vol.8, No.4, 631-636, August, 1997

Export Citation

열처리 다공성탄소를 통한 크롬(Cr+6)흡착

Adsorption of Chromium by Heat-treated Microporous Carbon

유상희, 김학수, 김학희

초록

흡착제로 널리 쓰이는 다공성탄소의 흡착성능을 증가시키는 연구를 수행하였다. 열처리에 의하여 다공성탄소의 흡착성능을 증가시킨 후, 유해중금속의 일종인 Cr⁺⁶의 선택적 흡착을 시행하였다. 다공성탄소의 적정 열처리 온도는 340∼350℃가 가장 적절하였으며. 이때의 평균 비표면적은 Brunauer-Emmett-Teller(BET) 방법에 의해 1380m²/g로 측정되었다. 열처리 과정에서 전체중량의 약 10%의 감소가 있었으나, 비표면적의 증가로 고품질의 흡착제가 되었다. 또한 열처리된 다공성탄소에 의하여 액상에서의 Cr⁺⁶의 제거가 성공적으로 수행되었다.

This study was conducted to increase the adorption capacity of microporous carbon which is widely used as an adsorbent. After increasing the adsorption capacity of microporous carbon by heat-treatment, chromium(Cr⁺⁶) solution, which is the one of hazardous heavy metals, was selectively adsorbed on microporous carbon. Optimum temperature range for the heat-treatment of microporous carbon was 340-350℃, and the average specific surface area was measured as 1380 m²/g by BET (Brunauer-Emmett-Teller) method. The weight loss was about 10 percents during the heating to optimum temperature. However, It became a qualitative adsorbent due to a larger specific surface area. Removal of chromium(Cr⁺⁶) in solution by heat-treated microporous carbon was successfully carried out.

[References]

Salvador F, SancehezJimenez C, Carbon, 34, 511 (1996)
McEnaney B, Mays TJ, Introduction to Carbon Science, H. Marsh, 154, Butterworths, London (1989)
You SH, Kim HH, Theor. Appl. Chem. Eng., 2, 1618 (1996)
McEnaney B, Carbon, 26, 267 (1987)
Rodriguez-Reinoso F, Linares-Solano A, Chemistry and Physics of Carbon, P.A. Thrower, 21, Marcel Dekker, New York (1985)
Gregg SJ, Sing KSW, Surface Area, and Porosity, 2nd ed. Academic Press, New York (1982)
Singh B, Carbon, 34, 327 (1996)
Kim HH, Park SJ, J. Korean Ind. Eng. Chem., 5(1), 105 (1994)
Molina-Sabio M, Carbon, 34, 505 (1996)
Ityokumbul MT, Can. J. Chem. Eng., 72(2), 370 (1994)
Rao MB, Jenkins RG, Carbon, 25, 445 (1987)
Barton, Carbon, 25, 343 (1987)
Tamon H, Kitamura K, Okazaki M, AIChE J., 42(2), 422 (1996)
Kelemen SR, Freund H, Carbon, 23, 723 (1985)
Wigman T, Cranenburgh H, Carbon, 21, 23 (1983)
Montgomery JM, Water Treatment Principal and Design, John Wiley, New York (1985)
Sun J, Hippo EJ, Carbon, 35, 341 (1997)

[Referenced By]

[1] Salvador F, SancehezJimenez C, Carbon, 34, 511 (1996)

[2] McEnaney B, Mays TJ, Introduction to Carbon Science, H. Marsh, 154, Butterworths, London (1989)

[3] You SH, Kim HH, Theor. Appl. Chem. Eng., 2, 1618 (1996)

[4] McEnaney B, Carbon, 26, 267 (1987)

[5] Rodriguez-Reinoso F, Linares-Solano A, Chemistry and Physics of Carbon, P.A. Thrower, 21, Marcel Dekker, New York (1985)

[6] Gregg SJ, Sing KSW, Surface Area, and Porosity, 2nd ed. Academic Press, New York (1982)

[7] Singh B, Carbon, 34, 327 (1996)

[8] Kim HH, Park SJ, J. Korean Ind. Eng. Chem., 5(1), 105 (1994)

[9] Molina-Sabio M, Carbon, 34, 505 (1996)

[10] Ityokumbul MT, Can. J. Chem. Eng., 72(2), 370 (1994)

[11] Rao MB, Jenkins RG, Carbon, 25, 445 (1987)

[12] Barton, Carbon, 25, 343 (1987)

[13] Tamon H, Kitamura K, Okazaki M, AIChE J., 42(2), 422 (1996)

[14] Kelemen SR, Freund H, Carbon, 23, 723 (1985)

[15] Wigman T, Cranenburgh H, Carbon, 21, 23 (1983)

[16] Montgomery JM, Water Treatment Principal and Design, John Wiley, New York (1985)

[17] Sun J, Hippo EJ, Carbon, 35, 341 (1997)