低温加热后伊利石的激光拉曼光谱特征

Laser Raman Spectroscopic Characteristics of Low-temperature Heated Illite

在分析伊利石结构和常温下拉曼光谱特征的基础上,尝试用激光拉曼光谱法监测伊利石随温度变化而发生的一系列情况,对经历了不同温度后的伊利石样品开展了拉曼光谱研究。结果显示,高波数段羟基振动峰带宽随温度升高呈现逐渐缩短的趋势,且其振动峰峰面积比值随温度升高而逐渐增大,并最终利用这些特征建立了温度与拉曼峰特征参数的数学表达式。

Base on the study of structure and Raman spectrum;＇of illite at room temperature, laser Raman spectroscopy was attempted to use in monitoring the transformation of illite structure with temperature changes. The results show that in the high wave number band the width of hydroxyl-stretching band region narrows with temperature increase and the area ratio of OH vibration peaks rises with the temperature increase. According to these characters, a mathematical formula between temperature and Raman parameters was established.