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Acta Physico-Chimica Sinica  2009, Vol. 25 Issue (08): 1697-1702    DOI: 10.3866/PKU.WHXB20090816
Article     
Preparation of Carbon Nanotubes/Activated Carbon Composite Microspheres and Their Application to Adsorption of VB12
LU Yue-Mei, GONG Qian-Ming, LIANG Ji
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China|Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Tsinghua University, Beijing 100084, P. R. China
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Abstract  

Novel carbon nanotubes/activated carbon (CNTs/AC) composite microspheres were prepared by inverse emulsion polymerization, carbonization, and activation, and were applied to the adsorption of VB12, a representative of middle molecular weight toxins found in the human body. Results show that CNTs/AC composite microspheres with 70%(w) CNTs have good sphericity and their adsorption of VB12 reaches 23.59 mg·g-1, which is 5.4 and 2.7 times as much as that of activated carbon and macroporous resin, respectively. This is attributed to the more developed mesopores found in the microspheres.



Key wordsCNTs      Chitosan      Composite microsphere      Adsorption     
Received: 23 December 2008      Published: 19 June 2009
MSC2000:  O643  
  Q647  
Corresponding Authors: LIANG Ji     E-mail: liangji@mail.tsinghua.edu.cn
Cite this article:

LU Yue-Mei, GONG Qian-Ming, LIANG Ji. Preparation of Carbon Nanotubes/Activated Carbon Composite Microspheres and Their Application to Adsorption of VB12. Acta Physico-Chimica Sinica, 2009, 25(08): 1697-1702.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20090816     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2009/V25/I08/1697

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