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Fabrication of Green Synthesized SnO2–ZnO/Bentonite Nanocomposite for Photocatalytic Degradation of Organic Dyes

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Abstract

This paper proposes a simple and environmentally friendly method for the green synthesis of SnO2–ZnO/bentonite nanocomposite in the presence of Acroptilon repens flower extract as a reducing and stabilizing agent. The synthesized nanocomposite was characterized using various techniques to investigate their structural properties and morphology. The photocatalytic degradation of the organic dye, eriochrome black-T (EBT) under solar irradiation and in the presence of synthesized nanocomposite was investigated. The results indicated that the nanoparticles were well immobilized onto bentonite as a support with minimum agglomeration. Moreover, the results of photocatalytic reactions showed that SnO2–ZnO/bentonite nanocomposite could remove the dyes in just 2.5 h and the degradation efficiencies approached 100% indicating the excellent performance of the catalyst. The kinetic study revealed that degradation of EBT in presence of the SnO2–ZnO/bentonite nanocomposite obeys first-order kinetics with the rate constant of 1.75 × 10–2 min−1. Furthermore, the biosynthesized nanocomposite exhibited a stable performance and high tolerance to the reaction conditions and was reused in three cycles with negligible loss of activity.

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Authors and Affiliations

  1. Department of Chemical Engineering, Birjand University of Technology, Birjand, Iran

    Morteza Golmohammadi

  2. Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada

    Mojtaba Nabipoor Hassankiadeh

  3. Department of Chemical Engineering, Khalifa University, Abu Dhabi, P.O.Box 127788, United Arab Emirates

    Ali AlHammadi & Ali Elkamel

  4. Department of Chemical Engineering, University of Waterloo, Waterloo, N2L 3G1, Canada

    Ali Elkamel

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Golmohammadi, M., Nabipoor Hassankiadeh, M., AlHammadi, A. et al. Fabrication of Green Synthesized SnO2–ZnO/Bentonite Nanocomposite for Photocatalytic Degradation of Organic Dyes. J Clust Sci 34, 2275–2286 (2023). https://doi.org/10.1007/s10876-022-02379-3

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