Mechanochemical treatment of vermiculite in vibration milling and its effect on lead (II) adsorption ability

Teruhisa Hongo, Shota Yoshino, Atsushi Yamazaki, Akihiro Yamasaki, Shigeo Satokawa

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    27 Citations (Scopus)

    Abstract

    Vermiculite was subjected to mechanochemical treatment using a vibration mill. The treated samples were characterized by XRD, FE-SEM, N2-adsorption, FT-IR and 29Si-MAS NMR. The mechanochemical treatment led to a reduction in the particle size and a significant increase in the surface area. Surface hydroxyl (silanol, magnesiol and aluminol) groups, located on the clay particle edges and amorphous silica phase, were also generated. The mechanochemical treatment of vermiculite gave a dramatic improvement in the lead (II) adsorption capacity.

    Original languageEnglish
    Pages (from-to)74-78
    Number of pages5
    JournalApplied Clay Science
    Volume70
    DOIs
    Publication statusPublished - 2012 Dec

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    Keywords

    • Adsorption
    • Lead (II)
    • Mechanochemical treatment
    • Vermiculite
    • Vibration milling

    ASJC Scopus subject areas

    • Geochemistry and Petrology
    • Geology

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