Preparation and Characterization of Protein-montmorillonite composites

被引：3
|
作者：
Zhu Qian [1 ]
Chen Dai-mei [1 ]
Liu Yan [1 ]
Deng Xu-tao [1 ]
Li Hui [1 ]
Lu Zhi-Jin [1 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing 100083, Peoples R China
来源：
FRONTIERS OF MECHANICAL ENGINEERING AND MATERIALS ENGINEERING, PTS 1 AND 2 | 2012年 / 184-185卷
关键词：
montmorillonite; lysozyme; intercalation; composites;
D O I：
10.4028/www.scientific.net/AMM.184-185.1120
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Protein-montmorillonite composites were prepared by direct and stepwise intercalation of lysozyme(LYZ) into gallery of montmorillonite(MMT), and characterized by X-ray Diffraction (XRD), Thermal Gravimetric Analysis(TGA) and Atomic Force Microscopy(AFM). The direct intercalation experiment showed that with the increase of LYZ/MMT weight ratio from 1:1 to 4:1, the interlayer space of MMT increased from 4.2nm to 6.3nm, and the adsorption amount of lysozyme onto MMT increased from 1.05mg/mg to 1.84mg/mg. While in stepwise intercalation process, the adsorption of LYZ was obviously lower than that in direct intercalation experiment, indicateing that the exchange reaction between lysozyme and POP-D2000 was incomplete in the stepwise intercalation reaction.
引用
收藏
页码：1120 / 1123
页数：4
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