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    Adsorption and catalysis of graphene in environmental remediation

    Access Status
    Fulltext not available
    Authors
    Sun, H.
    Wang, Shaobin
    Date
    2016
    Type
    Book Chapter
    
    Metadata
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    Citation
    Sun, H. and Wang, S. 2016. Adsorption and catalysis of graphene in environmental remediation. In Graphene Science Handbook: Size-Dependent Properties, 41-52.
    Source Title
    Graphene Science Handbook: Size-Dependent Properties
    ISBN
    9781466591363
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/72733
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 by Taylor & Francis Group, LLC. This chapter introduces the versatile applications of graphene as adsorbents, supporting and hybridization materials, and catalysts for removal of pollutants in contaminated water and air. The strong adsorption for many types of pollutants, such as gases, heavy metals, inorganic anions, dyes, and many other organic contaminants, on graphene and graphene oxides is discussed. Insightful mechanism of structure-related adsorp tion and the effect of functional groups (epoxys, hydroxyls, and carboxylic groups) on the adsorption will be studied. The large surface area, porosity, surface charges, and functional groups are considered as the key roles for adsorption of dif ferent pollutants. Recent research also showed that graphene or its oxide is able to be used as a catalyst in advanced oxida tion processes (AOPs) by means of photocatalysis or chemical oxidation. The active sites and related charge transfers in the catalysis with or without irradiation are discussed. The find ings open a venue to green catalysis that employs novel and nontoxic metal-free catalysts for AOPs, leading to a sustain able remediation strategy.

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