Graduate School of Science and Engineering, Ehime University, 2-5, Matsuyama 790-8577, Japan.
J Colloid Interface Sci. 2012 Feb 15;368(1):578-83. doi: 10.1016/j.jcis.2011.11.048. Epub 2011 Dec 1.
We report the preparation of organic-brucite (BR) hybrids using harmless sugar alcohols (xylitol, XYL, and sorbitol, SOR). Since XYL and SOR are solid materials at room temperature, the hybridization was investigated by comparing two separate methods, hydrothermal treatment and melt mixing. BR-sugar alcohol hybrids were successfully prepared by a melt intercalation method at 175 °C. X-ray diffraction and Fourier transform infrared spectroscopy analyses indicated that organic molecules were intercalated into the brucite layers, overcoming the barrier of hydroxyl bonds between the BR layers. Moreover, X-ray photoelectron spectroscopy and thermal analyses showed that the intercalated materials at 175 °C resulted in the formation of covalent Mg-O-C bond linkages on the interlayer surface of BR.
我们使用无害的糖醇（木糖醇、XL 和山梨糖醇、SOR）制备了有机水镁石（BR）杂化物。由于 XL 和 SOR 在室温下为固体材料，因此通过比较两种不同的方法，即水热处理和熔融混合，研究了杂化。通过在 175°C 下的熔融插层法成功制备了 BR-糖醇杂化物。X 射线衍射和傅里叶变换红外光谱分析表明，有机分子插入到水镁石层中，克服了水镁石层之间羟基键的障碍。此外，X 射线光电子能谱和热分析表明，在 175°C 下插层的材料在水镁石层的层间表面形成了共价 Mg-O-C 键连接。
