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    Visible-light-driven sonophotocatalysis and peroxymonosulfate activation over 3D urchin-like MoS2C nanoparticles for accelerating levofloxacin elimination: Optimization and kinetic study

    Access Status
    Fulltext not available
    Authors
    Zeng, L.
    Li, S.
    Li, Xinyong
    Li, J.
    Fan, S.
    Chen, X.
    Yin, Z.
    Tade, Moses
    Liu, Shaomin
    Date
    2019
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zeng, L. and Li, S. and Li, X. and Li, J. and Fan, S. and Chen, X. and Yin, Z. et al. 2019. Visible-light-driven sonophotocatalysis and peroxymonosulfate activation over 3D urchin-like MoS2/C nanoparticles for accelerating levofloxacin elimination: Optimization and kinetic study. Chemical Engineering Journal. 378: Article No. 122039.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2019.122039
    ISSN
    1385-8947
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/79348
    Collection
    • Curtin Research Publications
    Abstract

    © 2019 Elsevier B.V.

    Solar response catalysts designed, sustainable wastewater-purification technology developed, possesses huge advantage in resolving the global issue of scarcity of drinkable water availably. In this work, a smart 3D core-shell urchin-like MoS2/carbon photocatalyst was developed with special hollow interior and the internal carbon layer embedding, which could largely enhance the electrical conductivity of MoS2, accelerate the electron transfer efficiency, and provide more active sites The effect of the pollutant concentration, the initial pH, co-existing anions, peroxymonosulfate (PMS) dose and ultrasonic intensity are carried out to explore the performance of sonophotocatalytic coupling system for levofloxacin degradation under visible light irradiation. Following the optimized condition, the MoS2/C catalyst presented excellent degradation rate (0.0702 min−1) in PMS activated sonophotocatalytic system (synergy index reaching to 2.6). The active radical trapping, degradation intermediates and possible catalytic mechanism were investigated and proposed, respectively. Based on these results, the unique development, fabrication, core/shell strategy, and high-efficiency coupling approach would motivate new models of wastewater treatment technologies.

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