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  • Synthesis of ordered mesoporous silica with tunable morphologies and pore sizes via a nonpolar solvent-assisted Stöber method

    Author(s)
    Wang, X
    Zhang, Y
    Luo, W
    Elzatahry, AA
    Cheng, X
    Alghamdi, A
    Abdullah, AM
    Deng, Y
    Zhao, D
    Griffith University Author(s)
    Zhao, Dongyuan
    Year published
    2016
    Metadata
    Show full item record
    Abstract
    A facile nonpolar solvent-assisted Stöber method has been developed to synthesize ordered mesoporous silica materials with tunable pore size and diverse morphologies and mesostructures by using cetyltrimethylammonium bromide as the template and tetraethyl orthosilicate as silica precursor in a simple aqueous-phase synthesis system. By simply changing the amount of n-hexane and ammonia-water in the system, ordered mesoporous silica with pore sizes of 2.7-10.5 nm, various morphologies (nanocubes, truncated nanocubes, core-shell microspheres, and twisted nanorods), a high surface area up to 888 m2/g, and a large pore volume of ...
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    A facile nonpolar solvent-assisted Stöber method has been developed to synthesize ordered mesoporous silica materials with tunable pore size and diverse morphologies and mesostructures by using cetyltrimethylammonium bromide as the template and tetraethyl orthosilicate as silica precursor in a simple aqueous-phase synthesis system. By simply changing the amount of n-hexane and ammonia-water in the system, ordered mesoporous silica with pore sizes of 2.7-10.5 nm, various morphologies (nanocubes, truncated nanocubes, core-shell microspheres, and twisted nanorods), a high surface area up to 888 m2/g, and a large pore volume of 1.55 cm3/g are synthesized. Owing to their highly hydrophilic surface, large and accessible pores, and high surface area, the mesoporous silica materials exhibit an excellent performance in adsorption of dye molecules of large dimension (1.6 nm) with a maximum adsorption capacity of 106 mg/g in 10 min at 200 mg/L initial Rhodamine B concentration.
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    Journal Title
    Chemistry of Materials
    Volume
    28
    Issue
    7
    DOI
    https://doi.org/10.1021/acs.chemmater.6b00499
    Subject
    Chemical sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/407794
    Collection
    • Journal articles

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