Mineralogical study and porosimetry measurements of zeolites from Scaloma area, Thrace, Greece

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• 作者：K. Elaiopoulos ; Th. Perraki ; E. Grigoropoulou
• 关键词：Zeolite ; Heulandite type-II ; Infrared spectroscopy ; XRD ; Porosimetry
• 刊名：Microporous and Mesoporous Materials
• 出版年：2008
• 期刊代码：78_13871811
• 类别：ch
• 出版时间：1 July 2008
• 卷：112
• 期：1-3
• 页码：441-449
• 文件大小：916 K

摘要

The zeolites of the Skaloma area, Thrace, Greece, were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray fluorescence (XRF), N₂-porosimetry and Fourier transform infrared (FTIR) spectroscopy. Thermogravimetric analysis (TG/DTG) was also applied. The main mineral constituent is “heulandite type-IIȁd;, an intermediate type of the isomorphous series heulandite–clinoptilolite end members. Significant amounts of mordenite were found to contribute to the mineral structure as a secondary zeolitic phase. Traces of feldspars, muscovite, cristobalite and smectite were also detected. The surface properties of the zeolitic material, as derived from the N₂ adsorption–desorption isotherms at normal boiling temperature, were found to depend strongly on the pretreatment (degassing) conditions.