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    Synthesis of hydrophobic siliceous ferrierite by using pyridine and sodium fluoride

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    Publication Date
    2013-11-15
    Author
    Kowenje, Chrispin
    Kamimura, Yoshihiro
    Yamanaka, Kenji
    Itabashi, Keiji
    Endo, Akira
    Okubo, Tatsuya
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    Abstract/Overview
    We report for the first time, the successful synthesis of siliceous ferrierites with SiO2/Al2O3 = 138.8–324 by the hydrothermal treatment of aluminosilicate gel with the introduction of pyridine and easy-to-handle sodium fluoride (NaF). It has been found that pure siliceous ferrierites exhibit well-defined plate-like morphologies with sufficient micropore volume. Moreover, in terms of the adsorption of water vapor, siliceous ferrierites (SiO2/Al2O3 ⩾ 208) exhibit significantly higher hydrophobicity than commercially available siliceous zeolite (ZSM-5, HSZ-890HOA, SiO2/Al2O3 = 1880). This work provides a promising approach for the preparation of siliceous ferrierites with a simple synthesis system, and this finding will help to broaden the practical applicability of ferrierites.
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    https://repository.maseno.ac.ke/handle/123456789/620
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