Preparation and Characterization of Protein-montmorillonite composites

摘要：

　　Protein-montmorillonite composites were prepared by direct and stepwise intercalation of lysozyme(LYZ) into gallery of montrnorillonite(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.

关键词： montmorillonite lysozyme intercalation composites

作者: ZHU Qian CHEN Dai-mei LIU Yan DENG Xu-tao LI Hui LU Zhi-Jin

作者单位: National Laboratory of Mineral Materials, School of Materials Sciences and Technology,China University of Geosciences, Beijing 100083, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 1120-1123

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）