• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Earth-abundant Ni2P/g-C3N4 lamellar nanohydrids for enhanced photocatalytic hydrogen evolution and bacterial inactivation under visible light irradiation

    Author(s)
    Wang, Wanjun
    An, Taicheng
    Li, Guiying
    Xia, Dehua
    Zhao, Huijun
    Yu, Jimmy C
    Wong, Po Keung
    Griffith University Author(s)
    Zhao, Huijun
    Year published
    2017
    Metadata
    Show full item record
    Abstract
    Photocatalysts made of earth-abundant elements are highly desired for photocatalytic H2 evolution as well as bacterial inactivation without requirement of noble metal (i.e. Pt, Ag). In this study, nickel phosphide (Ni2P) was used as a nonprecious co-catalyst to couple with metal-free g-C3N4 based on Z-scheme type of electron transportation model. The exfoliation of bulk g-C3N4, the in-situ synthesis and anchoring of Ni2P nanoparticles onto the g-C3N4 nanosheets were achieved in one-step by a hydrothermal method without adding any surfactants or templates. The optimized Ni2P/g-C3N4 lamellar nanohydrids exhibited remarkably ...
    View more >
    Photocatalysts made of earth-abundant elements are highly desired for photocatalytic H2 evolution as well as bacterial inactivation without requirement of noble metal (i.e. Pt, Ag). In this study, nickel phosphide (Ni2P) was used as a nonprecious co-catalyst to couple with metal-free g-C3N4 based on Z-scheme type of electron transportation model. The exfoliation of bulk g-C3N4, the in-situ synthesis and anchoring of Ni2P nanoparticles onto the g-C3N4 nanosheets were achieved in one-step by a hydrothermal method without adding any surfactants or templates. The optimized Ni2P/g-C3N4 lamellar nanohydrids exhibited remarkably enhanced visible-light-driven photocatalytic activity for H2 evolution and bacterial inactivation without noble metal loading, and the obtained activity is approximately 22 and 10 times higher than that of pure g-C3N4, respectively. The Ni2P was proposed to effectively trap the photo-generated e− via a Z-scheme type of route, thus significantly promoting the e−-h+ separation and subsequent reduction of protons to generate H2. The bacterial inactivation was found to undergo a direct h+ oxidation process, and therefore the trapping of e− by Ni2P also facilitated h+ accumulation, leading to enhanced bacterial inactivation efficiency. This study demonstrates a proof-of-concept for constructing all-earth-abundant photocatalysts without any noble metal elements for both energy production and environmental application.
    View less >
    Journal Title
    Applied Catalysis B: Environmental
    Volume
    217
    DOI
    https://doi.org/10.1016/j.apcatb.2017.06.027
    Subject
    Physical Chemistry not elsewhere classified
    Physical Chemistry (incl. Structural)
    Chemical Engineering
    Environmental Engineering
    Publication URI
    http://hdl.handle.net/10072/346266
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander