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Preparation and characterization of l-cystine and l-cysteine intercalated layered double hydroxides

机译：L-半胱氨酸和L-半胱氨酸插层的双氢氧化物的制备与表征

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摘要

l-cystine and l-cysteine have been intercalated into magnesium–aluminum layered double hydroxide by the methods of coprecipitation and ion-exchange. The structure and composition of the intercalated materials have been characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and elemental analysis. For l-cysteine intercalated composites, two kinds of well-crystallized materials with different basal spacing were obtained, as a result of the different charge on an ion and orientation of the gallery anions. The schematic models of the intercalation structures were proposed. In addition, the thermal decomposition of l-cystine and l-cysteine intercalated LDHs has been investigated by means of thermogravimetry and differential thermal analysis (TG-DTA).
机译：通过共沉淀和离子交换的方法，将l-胱氨酸和l-半胱氨酸插入到镁铝层状双氢氧化物中。插层材料的结构和组成已通过X射线衍射（XRD），傅立叶变换红外（FT-IR）光谱和元素分析进行​​了表征。对于l-半胱氨酸插层复合材料，由于离子上的电荷不同以及通道阴离子的取向不同，因此获得了两种具有不同基础间距的良好结晶的材料。提出了插层结构的示意图。另外，已经通过热重分析和差热分析（​​TG-DTA）研究了L-半胱氨酸和L-半胱氨酸插入的LDH的热分解。

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  • 来源
    《Journal of Materials Science》 |2007年第8期|2684-2689|共6页
  • 作者

    Min Wei; Jian Guo; Zhiyu Shi; Qi Yuan; Min Pu; Guoying Rao; Xue Duan;

  • 作者单位

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

    State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China;

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