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    Nano-Fe0 Encapsulated in Microcarbon Spheres: Synthesis, Characterization, and Environmental Applications

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    Authors
    Sun, Hongqi
    Zhou, Guanliang
    Liu, Shi Zhen
    Ang, Ming
    Tade, Moses
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Sun, H. and Zhou, G. and Liu, S.Z. and Ang, M. and Tade, M. and Wang, S. 2012. Nano-Fe0 Encapsulated in Microcarbon Spheres: Synthesis, Characterization, and Environmental Applications. ACS Applied Materials and Interfaces. 4 (11): pp. 6235-6241.
    Source Title
    ACS Applied Materials and Interfaces
    DOI
    10.1021/am301829u
    ISSN
    1944-8244
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/39275
    Collection
    • Curtin Research Publications
    Abstract

    Nanoscaled zerovalent iron (ZVI) encapsulated in carbon spheres (nano-Fe0@CS) were prepared via a hydrothermal carbonization method, using glucose and iron(III) nitrate as precursors. The properties of the nano-Fe0@CS were investigated by X-ray diffraction (XRD), thermogravimetric analysis-differential scanning calorimetry (TGA-DSC), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption/desorption isotherms. Nano-Fe0@CS was demonstrated, for the first time, as an effective material in activating Oxone (peroxymonosulfate, PMS) for the oxidation of organic pollutants. It was found that the efficiency of nano-Fe0@CS was higher than ZVI particles, iron ions, iron oxides, and a cobalt oxide. The mechanism of the high performance was discussed. The structure of the nano-Fe0@CS not only leads to high efficiency in the activation of PMS, but also good stability. This studyextended the application of ZVI from reductive destruction of organics to oxidative degradation of organics by providing a green material for environmental remediation.

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