메조포러스 실리케이트에 의한 기상 벤젠 흡착

이채영; 문남구; 정진석; 신은우; Chae Young Lee; Nam Gu Moon; Jin Suk Chung; Eun Woo Shin

Journal of the Korean Industrial and Engineering Chemistry, Vol.19, No.4, 452-456, August, 2008

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메조포러스 실리케이트에 의한 기상 벤젠 흡착

Adsorption of Gaseous Benzene onto Mesoporous Silicates

이채영, 문남구¹, 정진석 , 신은우 ^†

울산대학교 생명화학공학부
¹(주)태성환경연구소

Chae Young Lee, Nam Gu Moon¹, Jin Suk Chung , and Eun Woo Shin^†

School of Chemical Engineering and Bioengineering, University of Ulsan, Ulsan 680-749, Korea
¹Tae Sung Environmental Institute Co. LTD., Ulsan 680-808, Korea

E-mail:

초록

메조포러스 실리케이트 물질은 넓은 비표면적과 규칙적인 나노 기공구조를 가지고 있어 흡착제로 활용도가 높다. 본 연구 에서는 대표적인 메조포러스 실리케이트인 MCM-41, SBA-15을 흡착제로 활용하여 휘발성 유기화합물의 하나인 벤젠의 기상 흡착 실험을 수행하였다. 벤젠의 파과곡선(Breakthrough curves)을 통하여 각 물질의 벤젠 흡착량을 비교한 결과, 본 실험의 조건에서는 기공구조가 큰 SBA-15이 더 높은 벤젠 흡착량을 보여주었다. 특히 다른 분자체 물질인 제올라이트 X보다도 약 2.7배 높은 흡착력을 보여주었다. SBA-15를 이용하여 흡착온도와 벤젠 주입속도를 달리하며 벤젠 기상 흡착을 수행한 결과, 온도가 증가할수록 벤젠의 흡착량은 급속히 감소하였다. 이러한 결과는 SBA-15에 흡착하는 벤젠의 결합이 약하다는 것을 보여준다.

Mesoporous silicate materials have been used as adsorbents due to the advantage of high specific surface area and regular mesopores. In this study, conventional mesoporous silicates (MCM-41, and SBA-15) were utilized as adsorbents for gaseous benzene, one of volatile organic compounds. In the results of the breakthrough curves of gaseous benzene, SBA-15 showed a higher benzene adsorption capacity in adsorption condition of this study. Especially, compared to benzene adsorption of zeolite X, that of SBA-15 was higher by a factor of 2.7. With increasing adsorption temperature, adsorption capacity for benzene of SBA-15 was decreased rapidly. This indicates that benzene adsorbed weakly on SBA-15.

Keywords:mesoporous silicates;SBA-15;MCM-41;benzene;breakthrough curves

[References]

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Ueno Y, Horiuchi T, Tomita M, Niwa O, Zhou OHS, Yamada T, Honma I, Anal. Chem., 74, 5257 (2005)
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Mercier L, Pinnavaia TJ, Environ. Sci. Technol., 35, 2749 (1998)
Zhao H, Nagy KL, Waples JS, Vance J, Environ. Sci. Technol., 34, 4822 (2000)
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[Related Articles]

[1] Hernandez MA, Velasco JA, Asomoza M, Solis S, Rojas F, Lara VH, Ind. Eng. Chem. Res., 43(7), 1779 (2004)

[2] Ueno Y, Horiuchi T, Tomita M, Niwa O, Zhou OHS, Yamada T, Honma I, Anal. Chem., 74, 5257 (2005)

[3] Yun JH, Hwang KY, Choi DK, J. Chem. Eng. Data, 43, 843 (1998)

[4] Kresge CT, Leonowicz ME, Roth WJ, Vartuli JC, Beck JS, Nature, 359, 710 (1992)

[5] Kruk M, Jaroniec M, Ko CH, Ryoo R, Chem. Mater., 12, 1961 (2000)

[6] Zhao DY, Feng JL, Huo QS, Melosh N, Fredrickson GH, Chmelka BF, Stucky GD, Science, 279(5350), 548 (1998)

[7] Sayari A, Hamoudi S, Yang Y, Chem. Mater., 17, 212 (2005)

[8] Shin EW, Han JS, Jang M, Min SH, Park JK, Rowell RM, Environ. Sci. Technol., 34, 912 (2004)

[9] Feng X, Fryxell GE, Wang LQ, Kim AY, Liu J, Kemner KM, Science, 276, 923 (1997)

[10] Jang M, Park JK, Shin EW, Microporous Mesoporous Mater., 75, 159 (2004)

[11] Mercier L, Pinnavaia TJ, Environ. Sci. Technol., 35, 2749 (1998)

[12] Zhao H, Nagy KL, Waples JS, Vance J, Environ. Sci. Technol., 34, 4822 (2000)

[13] Choi HS, Lee DG, Cho GJ, Lee CY, Chung JS, Yoo IK, Shin EW, Korean Chem. Eng. Res., 44(2), 172 (2006)

[14] Yang RT, Adsorbents: Fundamentals and Applications, 135, John Wiley & Sons, Inc., New Jersey (2003)