Abstract
Controlling the structure of cerium dioxide (CeO2)-based photocatalysts for the removal of organic contaminants in water is essential. Herein, GO/Fe3O4/CeO2 heterojunction photocatalyst is designed by a clear and simple method for photodegradation of diazinon under visible-light excitation. SEM, EDS, XRD, FTIR, VSM, and UV–vis were used to analyze the crystallinity and morphology of the GO/Fe3O4/CeO2 heterojunction. The UV–Vis analysis revealed a bandgap value of 3.19, 3.08, and 2.98 eV, respectively, for GO, GO@Fe3O4, and GO@Fe3O4@CeO2. The effects of important parameters such as pH (2.0–9.0), photocatalyst dose (10–40 mg), and contact time (0–180 min) were also investigated. The maximum diazinon degradation rate was found to be 97.9% in 60 min. In conclusion, the results indicated that GO@Fe3O4@CeO2 nanocomposite could be used as an efficient photocatalyst for the degradation of organic contaminants from water medium.
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The authors are grateful to the Hamedan Branch, Islamic Azad University for providing facilities to conduct and complete this study.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Seyed Khabat Naynava, Bahareh Lorestani, Mehrdad Cheraghi, Soheil Sobhan Ardakani, and Behzad Shahmoradi. The first draft of the manuscript was written by Seyed Khabat Naynava and Soheil Sobhan Ardakani, and all authors commented on previous versions of the manuscript. The corresponding author ensures that all the listed authors have approved the manuscript before submission, including the names and order of authors.
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Naynava, S.K., Lorestani, B., Cheraghi, M. et al. Efficient Degradation of Diazinon Pesticide under Visible Light Irradiation Using CeO2 Functionalized Magnetite Graphene Oxide Heterojunction-Based Photocatalyst. Water Air Soil Pollut 235, 274 (2024). https://doi.org/10.1007/s11270-024-07087-4
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DOI: https://doi.org/10.1007/s11270-024-07087-4