Wojciechowska Kamila M, Król Magdalena, Bajda Tomasz, Mozgawa Włodzimierz
Faculty of Materials Science and Ceramics, Department of Silicate Chemistry and Macromolecular Compounds, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland.
Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland.
Materials (Basel). 2019 Oct 8;12(19):3271. doi: 10.3390/ma12193271.
Desilication and dealumination techniques were used to obtain mesoporous ZSM-5 and mordenite zeolites. The study provides insight into specific structural, textural, and sorption properties of obtained materials with different Si/Al ratios. Subsequent dealumination and desilication procedures were found to be efficient methods of generating a secondary system of mesopores in mordenite and ZSM-5 crystals while preserving their microporous character. The investigated materials were evaluated in terms of their sorption properties of selected heavy metal cations (Cd, Cr, and Pb). Particular emphasis was placed on the structural examination of the materials via infrared spectroscopy (FT-IR). Other research methods included X-ray diffraction (XRD), X-ray fluorescence (XRF), nuclear magnetic resonance (NMR) and atomic absorption spectrometry (AAS).
采用脱硅和脱铝技术制备了介孔ZSM-5和丝光沸石。该研究深入了解了不同硅铝比的所得材料的特定结构、织构和吸附性能。结果发现，后续的脱铝和脱硅程序是在丝光沸石和ZSM-5晶体中生成二级介孔体系同时保留其微孔特性的有效方法。根据所选重金属阳离子（镉、铬和铅）的吸附性能对所研究的材料进行了评估。特别强调了通过红外光谱（FT-IR）对材料进行结构分析。其他研究方法包括X射线衍射（XRD）、X射线荧光（XRF）、核磁共振（NMR）和原子吸收光谱法（AAS）。
