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Citation: 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[J]. Acta Physico-Chimica Sinica, ;2010, 26(06): 1593-1598. doi: 10.3866/PKU.WHXB20100614 shu

Adsorption of Lysozymes on Fe/CMK-5 Composites Synthesized by Chemical Vapor Deposition

1.
Institute of Chemistry for Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, Liaoning Province, P. R. China

Received Date: 21 December 2009
Available Online: 23 April 2010

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.
- Adsorption,
- Fe/CMK-5 composites,
- Mesoporous carbon,
- Chemical vapor deposition,
- Lysozyme
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