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Acta Physico-Chimica Sinica  2010, Vol. 26 Issue (06): 1593-1598    DOI: 10.3866/PKU.WHXB20100614
CATALYSIS AND SURFACE STRUCTURE     
Adsorption of Lysozymes on Fe/CMK-5 Composites Synthesized by Chemical Vapor Deposition
CAO Yin-Di, DANG Li-Qin, BAI Dan, LEI Zhi-Bin, LIU Mei-Ying
Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning Province, P. R. China
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Abstract  

Fe/CMK-5 composites were synthesized by chemical vapor deposition (CVD) using ferrocene as carbon precursor and SBA-15 as silica template. The composites were characterized by powder X-ray diffraction (XRD), N2 adsorption, thermogravimetric analysis (TGA) and transmission electron microscopy (TEM). We found that the carbon in the composites existed as CMK-5, while the metallic Fe nanoparticles were homogenously embedded in the framework of mesoporous carbon. The textural parameters of the Fe/CMK-5 composites could be adjusted in a facile manner by changing the CVD duration time. The obtained Fe/CMK-5 composites were applied as adsorbents for the adsorption of lysozymes (Lzs) in the buffer solution at a pHof 11. The stabilities of the Lzs confined in the mesopores of the Fe/CMK-5 composites were investigated and the Lz leakage from the Fe/CMK-5 composite was also measured in buffer solutions with different pH values.



Key wordsAdsorption      Fe/CMK-5 composites      Mesoporous carbon      Chemical vapor deposition      Lysozyme     
Received: 21 December 2009      Published: 23 April 2010
MSC2000:  O647  
Corresponding Authors: LEI Zhi-Bin, LIU Mei-Ying     E-mail: myliu312@yahoo.com; zblei@lnnu.edu.cn
Cite this article:

CAO Yin-Di, DANG Li-Qin, BAI Dan, LEI Zhi-Bin, LIU Mei-Ying. Adsorption of Lysozymes on Fe/CMK-5 Composites Synthesized by Chemical Vapor Deposition. Acta Physico-Chimica Sinica, 2010, 26(06): 1593-1598.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20100614     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2010/V26/I06/1593

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