Characterization of H-Y zeolite modified by a radio-frequency CF4 plasma

Katsuhiko Furukawa, Shu Rong Tian, Hisashi Yamauchi, Satoshi Yamazaki, Hidenobu Ijiri, Koji Ariga, Katsunori Muraoka

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    Abstract

    H-Y zeolite modified by a radio-frequency CF4 plasma has been characterized using X-ray diffraction, nitrogen adsorption, magic angle spinning nuclear magnetic resonance, ethanol adsorption, energy dispersive X-ray and infrared absorption techniques. The ethanol adsorption measurements indicated that the hydrophobic character of the zeolite was enhanced by the plasma treatment. The energy dispersive X-ray experiments showed that the plasma-treated zeolite contained 7.91 at% of carbon and 9.93 at% of fluorine. The infrared absorption measurements clarified that replacement of -OH groups by -CF3 or -F groups on the micropore surface of the zeolite was responsible for the hydrophobic surface.

    Original languageEnglish
    Pages (from-to)22-26
    Number of pages5
    JournalChemical Physics Letters
    Volume318
    Issue number1-3
    DOIs
    Publication statusPublished - Feb 18 2000

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    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

    Cite this

    Furukawa, K., Tian, S. R., Yamauchi, H., Yamazaki, S., Ijiri, H., Ariga, K., & Muraoka, K. (2000). Characterization of H-Y zeolite modified by a radio-frequency CF4 plasma. Chemical Physics Letters, 318(1-3), 22-26. https://doi.org/10.1016/S0009-2614(99)01460-8