沸石族矿物的拉曼光谱特征,Minerals

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沸石族矿物的拉曼光谱特征
Minerals ( IF 2.2 ) Pub Date : 2021-02-05 , DOI: 10.3390/min11020167
Ying-Lai Tsai , Eugene Huang , Yu-Ho Li , Hsiao-Tien Hung , Jhih-Hao Jiang , Teh-Ching Liu , Jianng-Neng Fang , Huei-Fen Chen

在这项工作中，对沸石进行了拉曼光谱实验，包括总共33个变种和7个具有不同二级结构框架的基团，研究了其特征振动模式。大多数沸石在200–1200 cm ^-1之间的光谱范围内显示出突出的拉曼峰。可以通过在379–538 cm ^-1范围内的TOT模式（T = Si和Al，O =氧气）的波数差异，在250范围内的MO（M =金属）模式的波数差异来识别不同类型的沸石–360 cm ^-1和TO弯曲模式在530–575 cm ^-1范围内。所有沸石均在379–529 cm ^-1范围内显示特征性的拉曼峰。，除了钠沸石组（纤维）沸石外，其特征是TOT模式在433–447 cm ^-1范围内，TO弯曲模式在528–538 cm ^-1范围内。止痛剂组（单连接的四环链）沸石在379–392 cm ^-1和475–497 cm ^-1范围内显示TOT模式。gismondine组（具有双连接的四环链）沸石的TOT模式为391432 cm ^-1和463-497 cm ^-1。菱沸石组（具有六环中）的沸石是由MO模式在320-340厘米特征^-1范围和TOT模式在477-509厘米^-1范围内。丝光沸石沸石的拉曼模式（397–410厘米）^-1和470-529 cm ^-1）与堇青石类沸石（402-416 cm ^-1和480-500 cm ^-1）重叠。此外，丝光沸石基团的特征峰在502–529 cm ^-1范围内，另外一个峰在800–965 cm ^-1范围内。赤铁矿群的另一个可识别峰在612–620 cm ^-1范围内。未知沸石（白云母）在534 cm ^-1处具有独特的特征峰，可帮助验证其身份。

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Raman Spectroscopic Characteristics of Zeolite Group Minerals

In this work, Raman spectroscopic experiments are conducted on zeolites, including a total of 33 varieties and seven groups with different secondary structural frameworks, for which characteristic vibration modes are studied. Most of the zeolites show prominent Raman peaks in the spectral range between 200–1200 cm⁻¹. Different groups of zeolites can be recognized by differences in the wavenumbers of the T-O-T (T = Si and Al, O = oxygen) modes in the range 379–538 cm⁻¹, the M-O (M = metal,) modes in the range 250–360 cm⁻¹ and the T-O bending modes in the range 530–575 cm⁻¹. All zeolites show characteristic Raman peaks in the range 379–529 cm⁻¹, except for natrolite group (fibrous) zeolites, which are characterized by T-O-T modes in the 433–447 cm⁻¹ range and T-O bending modes in the 528–538 cm⁻¹ range. The analcime group (with singly connected four-ring chains) zeolites show T-O-T modes in the 379–392 cm⁻¹ and 475–497 cm⁻¹ ranges. The gismondine group (with doubly connected four-ring chains) zeolites have T-O-T modes in the 391432 cm⁻¹ and 463–497 cm⁻¹ ranges. The chabazite group (with a six-cyclic ring) zeolites are characterized by M-O modes in the 320–340 cm⁻¹ range and T-O-T modes in the 477–509 cm⁻¹ range. The Raman modes of mordenite group zeolites (397–410 cm⁻¹ and 470–529 cm⁻¹) overlap with those of heulandite group zeolites (402–416 cm⁻¹ and 480–500 cm⁻¹). Moreover, the mordenite group has a characteristic peak in the 502–529 cm⁻¹ range, and an additional peak in the 800–965 cm⁻¹ range. Another recognizable peak for the heulandite group is in the 612–620 cm⁻¹ range. The unknown zeolites (cowlesite) have unique characteristic peaks at 534 cm⁻¹, which can aid in the verification of their identity.

更新日期：2021-02-05

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