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对蒙脱石及其改型处理的样品作了电子自旋共振(ESR)研究。结果表明,在蒙脱石的 ESR 谱中有两个主要的特征信号,其 g 值分别为 g_((?)ff)～4.3和2.0。前者对应蒙脱石中 Fe~(3+)离子的强结构信号,后者描述了蒙脱石层间离子相关的信号,它随着不同离子的交换改型而敏感地变化。在样品加热处理后,两者的信号发生了大的变化。这种变化反映了蒙脱石层间离子的构形形态的变化、迁移以及蒙脱石层结构的变化。
Electron spin resonance (ESR) studies were performed on the montmorillonite and its modified samples. The results show that there are two main characteristic signals in the ESR spectra of montmorillonite, the g values are g _ ((?) Ff) ~ 4.3 and 2.0, respectively. The former corresponds to the strong structure signal of Fe ~ (3 +) ions in montmorillonite, the latter describes the ion-related signal between layers of montmorillonite, which changes sensitively with the exchange and modification of different ions. After the sample heat treatment, the two signals have undergone major changes. This change reflects the change of the configuration morphology of the ions in the montmorillonite layer, the migration and the change of the montmorillonite layer structure.