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  • Preparation and photocatalytic application of ternary n-BaTiO3/Ag/p-AgBr heterostructured photocatalysts for dye degradation

    Author(s)
    Wang, Y
    Yang, H
    Sun, X
    Zhang, H
    Xian, T
    Griffith University Author(s)
    Zhang, Haimin
    Year published
    2020
    Metadata
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    Abstract
    We reported the preparation of new ternary n-BaTiO3/Ag/p-AgBr heterostructured photocatalysts and their promising photocatalytic application for the dye degradation. The ternary n-BaTiO3/Ag/p-AgBr heterostructured photocatalysts are constructed by coupling n-type BaTiO3 and p-type AgBr particles onto Ag nanowires. Various methods including XRD, SEM, TEM, XPS, FTIR, UV–vis diffuse reflectance spectroscopy, PL spectroscopy, photocurrent response and EIS were used to characterize the as-prepared photocatalysts. The photodegradation performances of the photocatalysts were assessed by using RhB as the model pollutant and simulated ...
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    We reported the preparation of new ternary n-BaTiO3/Ag/p-AgBr heterostructured photocatalysts and their promising photocatalytic application for the dye degradation. The ternary n-BaTiO3/Ag/p-AgBr heterostructured photocatalysts are constructed by coupling n-type BaTiO3 and p-type AgBr particles onto Ag nanowires. Various methods including XRD, SEM, TEM, XPS, FTIR, UV–vis diffuse reflectance spectroscopy, PL spectroscopy, photocurrent response and EIS were used to characterize the as-prepared photocatalysts. The photodegradation performances of the photocatalysts were assessed by using RhB as the model pollutant and simulated sunlight as the light source. It is demonstrated that the n-BaTiO3/Ag/p-AgBr ternary composite photocatalysts exhibit excellent photodegradation performances superior to bare BaTiO3 and AgBr particles. Particularly, the 20 %BTO/1.2 %Ag/AgBr composite can photocatalyze 99.3 % removal of RhB after 12 min photoreaction, and has a photodegradation activity which is about 3.1 times larger than that of bare AgBr particles. The underlying photodegradation mechanism of the ternary composite photocatalysts was investigated and discussed.
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    Journal Title
    Materials Research Bulletin
    Volume
    124
    DOI
    https://doi.org/10.1016/j.materresbull.2019.110754
    Subject
    Condensed matter physics
    Macromolecular and materials chemistry
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/395316
    Collection
    • Journal articles

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