通过x射线衍射、透射电镜分析蒙脱石-氯化铁的结构

ANALYSIS OF MONTMORILLONTIE IRON CHLORIDE STRUCTURE BY X RAY POWDER DIFFRACTION AND TRANSMISSION ELECTRON MICROSCOPE

利用ｘ射线衍射、透射电镜分析了蒙脱石－氯化铁的结构。在蒙脱石－氯化铁复合物ＥＣ４、ＥＣ５、ＥＣ６中，蒙脱石的结晶程度相对ＥＣ１有所下降。三价铁未能进入蒙脱石的八面体。三价铁可能以无定形形态存在于蒙脱石的层间，并使复合物对电子束更敏感。

The structure of montmorillonite iron chloride is analysed by x ray powder diffraction and transmission electron microscope.It is found that the structure of smectites in EC4、EC5 and EC6 were damaged,compared with smectite in EC1.There is no Fe(Ⅲ) in a dioctahedral structure of montmorillonite.Fe(Ⅲ) is considered to occur as amorphous substance within smectite layer struture in EC4、EC5 and EC6.It shows that smectites in EC4、EC5 and EC6 are more electron beam sensitive (i.e. damaged faster under the electron beam)than in EC1 and EC2.