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  • Surface hydrogen bonding can enhance photocatalytic H2 evolution efficiency

    Author(s)
    Wang, Xue Lu
    Fang, Wen Qi
    Wang, Hai Feng
    Zhang, Haimin
    Zhao, Huijun
    Yao, Yefeng
    Yang, Hua Gui
    Griffith University Author(s)
    Zhao, Huijun
    Year published
    2013
    Metadata
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    Abstract
    Hydrogen bonding (H-bond) interactions have been regarded as a topic of vital scientific research in areas ranging from inorganic to biological chemistry. However, the application and elucidation of surface H-bond functionalized photocatalysts and the alteration of the character of the photocatalyst itself have not been paid sufficient attention. Here we show the high efficiency of visible-light-driven photocatalytic H2 production, achieved by using a surface H-bonding network decorated g-C3N4 photocatalyst. The hydrated g-C3N4 was designed and synthesized by a facile surface treatment in a slightly alkaline environment. ...
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    Hydrogen bonding (H-bond) interactions have been regarded as a topic of vital scientific research in areas ranging from inorganic to biological chemistry. However, the application and elucidation of surface H-bond functionalized photocatalysts and the alteration of the character of the photocatalyst itself have not been paid sufficient attention. Here we show the high efficiency of visible-light-driven photocatalytic H2 production, achieved by using a surface H-bonding network decorated g-C3N4 photocatalyst. The hydrated g-C3N4 was designed and synthesized by a facile surface treatment in a slightly alkaline environment. According to NMR and theoretical modeling, the H-bonding bridge can effectively shorten the distance between water molecules and g-C3N4, provide multiple channels for the transition between protons and the excited electrons on g-C3N4, stabilize the anionic intermediate and transition states, and restrain charge recombination. The present result opens new opportunities towards a potential approach to designing a new generation of photocatalyst systems
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    Journal Title
    Journal of Materials Chemistry A: materials for energy and sustainability
    Volume
    1
    Issue
    45
    DOI
    https://doi.org/10.1039/c3ta13328a
    Subject
    Inorganic green chemistry
    Macromolecular and materials chemistry
    Electrochemistry
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/56374
    Collection
    • Journal articles

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