Synthesis of Al-containing mesoporous silica (KSW-2) with semi-squared channels by incorporation of Al into the framework of kanemite

Tetsuro Shigeno, Koji Inoue, Tatsuo Kimura, Naonobu Katada, Miki Niwa, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    Incorporation of Al into the framework of single-layered silicate kanemite and the formation of Al-containing mesoporous silica (Al-KSW-2) with semi-squared one-dimensional channels were surveyed. Al-containing δ-Na2Si2O5 was successfully obtained by thermal treatment of an aqueous sodium silicate solution (Na2O/SiO2 = 1:2) containing NaAlO2 up to 785-810 °C, depending on the amount of NaAlO2 added. After Al-containing δ-Na2Si2O5 was dispersed in distilled water, Al-containing kanemite (Al-kanemite) was obtained with tetrahedrally coordinated A1. The reaction of Al-kanemite with an aqueous solution of hexadecyltrimethylammonium (C16TMA) surfactant yielded a layered C16TMA-Al-kanemite complex which was converted to a mesostructured precursor of Al-KSW-2 by mild acid treatment. Tetrahedral coordination of Al was retained in the framework of Al-KSW-2 with high surface area (830 m2 g-1) and uniform semi-squared mesopores (2.7 nm), which increased the adsorption ability for cationic dye molecules.

    Original languageEnglish
    Pages (from-to)883-887
    Number of pages5
    JournalJournal of Materials Chemistry
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - 2003 Apr 1

    Fingerprint

    Silicon Dioxide
    Silicates
    Silica
    silicon dioxide
    sodium silicates
    synthesis
    Surface-Active Agents
    silicates
    Surface active agents
    Coloring Agents
    Dyes
    dyes
    surfactants
    Heat treatment
    Sodium
    aqueous solutions
    Adsorption
    acids
    Molecules
    adsorption

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Materials Science(all)
    • Materials Chemistry

    Cite this

    Synthesis of Al-containing mesoporous silica (KSW-2) with semi-squared channels by incorporation of Al into the framework of kanemite. / Shigeno, Tetsuro; Inoue, Koji; Kimura, Tatsuo; Katada, Naonobu; Niwa, Miki; Kuroda, Kazuyuki.

    In: Journal of Materials Chemistry, Vol. 13, No. 4, 01.04.2003, p. 883-887.

    Research output: Contribution to journalArticle

    Shigeno, Tetsuro ; Inoue, Koji ; Kimura, Tatsuo ; Katada, Naonobu ; Niwa, Miki ; Kuroda, Kazuyuki. / Synthesis of Al-containing mesoporous silica (KSW-2) with semi-squared channels by incorporation of Al into the framework of kanemite. In: Journal of Materials Chemistry. 2003 ; Vol. 13, No. 4. pp. 883-887.
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