Preparation of aluminosilicate ferrierite zeolite nanosheets with controllable thickness in the presence of a sole organic structure directing agent

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Abstract

Preparation of aluminosilicate ferrierite (FER) zeolite nanosheets with controllable thickness in the presence of a sole organic ammonium is attractive, but still challenging. In this report, with the employment of N,N-diethyl-cis-2,6-dimethylpiperidinium (DMP) as both a structure directing agent and crystal growth inhibitor, aluminosilicate FER zeolite nanosheets, with a variety of crystal thicknesses, ranging from 6 to 200 nm, are successfully synthesized under hydrothermal conditions. Very interestingly, the amount of DMP in the starting gel is the key factor for crystal thickness control of aluminosilicate FER zeolite nanosheets. The obtained FER products, with different thicknesses, are well characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), N2 sorption, thermogravimetric analysis (TG), inductively coupled plasma (ICP), and magic angle spinning nuclear magnetic resonance (MAS NMR) techniques. This simple strategy might provide a novel avenue for the synthesis of other zeolite nanosheets with controllable thickness.

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Xu, H., Yu, Y. X., Zhu, L. F., Bian, C. Q., Zhai, H. L., Tong, J. Y., … Shen, C. (2020). Preparation of aluminosilicate ferrierite zeolite nanosheets with controllable thickness in the presence of a sole organic structure directing agent. Molecules, 25(4). https://doi.org/10.3390/molecules25040771

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