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- Title
Efficient Degradation of Diazinon Pesticide under Visible Light Irradiation Using CeO<sub>2</sub> Functionalized Magnetite Graphene Oxide Heterojunction-Based Photocatalyst.
- Authors
Naynava, Seyed Khabat; Lorestani, Bahareh; Cheraghi, Mehrdad; Sobhanardakani, Soheil; Shahmoradi, Behzad
- 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.
- Subjects
ORGANIC water pollutants; DIAZINON; GRAPHENE oxide; VISIBLE spectra; CERIUM oxides; ORGANOPHOSPHORUS pesticides; MAGNETITE
- Publication
Water, Air & Soil Pollution, 2024, Vol 235, Issue 5, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-024-07087-4