Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Nitrogen-Doped Graphene for Generation and Evolution of Reactive Radicals by Metal-Free Catalysis

    Access Status
    Fulltext not available
    Authors
    Duan, X.
    Ao, Z.
    Sun, Hongqi
    Indrawirawan, S.
    Wang, Yuxian
    Kang, J.
    Liang, F.
    Zhu, John
    Wang, Shaobin
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Duan, X. and Ao, Z. and Sun, H. and Indrawirawan, S. and Wang, Y. and Kang, J. and Liang, F. et al. 2015. Nitrogen-Doped Graphene for Generation and Evolution of Reactive Radicals by Metal-Free Catalysis. ACS Applied Materials and Interfaces. 7 (7): pp. 4169-4178.
    Source Title
    ACS Applied Materials and Interfaces
    DOI
    10.1021/am508416n
    ISSN
    1944-8244
    School
    Department of Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP130101319
    URI
    http://hdl.handle.net/20.500.11937/45800
    Collection
    • Curtin Research Publications
    Abstract

    N-Doped graphene (NG) nanomaterials were synthesized by directly annealing graphene oxide (GO) with a novel nitrogen precursor of melamine. A high N-doping level, 8-11 at. %, was achieved at a moderate temperature. The sample of NG-700, obtained at a calcination temperature of 700°C, showed the highest efficiency in degradation of phenol solutions by metal-free catalytic activation of peroxymonosulfate (PMS). The catalytic activity of the Ndoped rGO (NG-700) was about 80 times higher than that of undoped rGO in phenol degradation. Moreover, the activity of NG-700 was 18.5 times higher than that of the most popular metal-based catalyst of nanocrystalline Co3O4 in PMS activation. Theoretical calculations using spin-unrestricted density functional theory (DFT) were carried out to probe the active sites for PMS activation on Ndopedgraphene. In addition, experimental detection of generated radicals using electron paramagnetic resonance (EPR) and competitive radical reactions was performed to reveal the PMS activation processes and pathways of phenol degradation on nanocarbons. It was observed that both •OH and SO4 •- existed in the oxidation processes and played critical roles for phenol oxidation.

    Related items

    Showing items related by title, author, creator and subject.

    • Changes of phenolic acids and antioxidant activities during potherb mustard (Brassica juncea, Coss.) pickling
      Fang, Zhongxiang; Hu, Y.; Liu, D.; Chen, J.; Ye, X. (2008)
      Phenolic acids in potherb mustard (Brassica juncea, Coss.) were determined and the effects of pickling methods on the contents of total free phenolic acids, total phenolic acids, total phenolics, and antioxidant activities ...
    • The effect of germination and food processing on the concentration and activity of bioactive compounds in Australian Sweet Lupin
      Rumiyati (2010)
      Lupin is a grain legume which is high in protein and fibre, but low in fat and starch. Lupin also contains bioactive compounds such as phenolic compounds. Many studies have shown that a diet containing lupin has health ...
    • Heterogeneous catalytic oxidation of organic compound for wastewater treatme
      Muhammad, Syaifullah (2012)
      This research is focused on heterogeneous catalytic oxidation of phenol usually found in wastewater. Active metals of Ruthenium (Ru) and Cobalt (Co) have been impregnated on cheap support materials such as activated carbon ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.