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  • Highly hydrophobic mesoporous materials as matrix for gas chromatography separation of water-alcohols mixtures

    Author(s)
    Guan, Lianxiu
    Li, Junping
    Yang, Dongjiang
    Wang, Xiuzhi
    Zhao, Ning
    Wei, Wei
    Sun, Yuhan
    Griffith University Author(s)
    Yang, Dongjiang
    Year published
    2007
    Metadata
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    Abstract
    In this chapter, the hydrophobic mesoporous materials are synthesized and investigated as gas chromatography (GC) stationary phase for the separation of complicated water-alcohol systems. The hydrophobic mesoporous materials show high resolution and efficiency for the tested systems. The matrix achieves base-line separation of the propanol isomers via their different Van Der Waals interactions with functionalized surfaces in nanochannel. The chapter illustrates the representative transmission electron microscopy (TEM) image of the sample. It depicts a direct image of the 3D wormhole-like pore frameworks. The obtained hybrids ...
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    In this chapter, the hydrophobic mesoporous materials are synthesized and investigated as gas chromatography (GC) stationary phase for the separation of complicated water-alcohol systems. The hydrophobic mesoporous materials show high resolution and efficiency for the tested systems. The matrix achieves base-line separation of the propanol isomers via their different Van Der Waals interactions with functionalized surfaces in nanochannel. The chapter illustrates the representative transmission electron microscopy (TEM) image of the sample. It depicts a direct image of the 3D wormhole-like pore frameworks. The obtained hybrids are grinded and tabletted to measure the hydrophobicity. The N2 adsorption/desorption isotherms illustrate that the sample exhibits type IV isotherm with type H2 hysteresis loop, which further confirms the mesoporous sturcture of the samples. The hydrophobic materials exhibit the high resolution and efficiency for the water-alcohol mixtures. The separation order is highly consistent with the polarity of alcohol and water.
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    Journal Title
    Studies in Surface Science and Catalysis
    Volume
    165
    DOI
    https://doi.org/10.1016/S0167-2991(07)80460-5
    Subject
    Physical Chemistry not elsewhere classified
    Physical Chemistry (incl. Structural)
    Publication URI
    http://hdl.handle.net/10072/58403
    Collection
    • Journal articles

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