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Efficient Degradation of Diazinon Pesticide Under Visible Light Irradiation Using Ceo2 Functionalized Magnetite Graphene Oxide Heterojunction-Based Photocatalyst Publisher



Naynava SK1 ; Lorestani B1 ; Cheraghi M1 ; Sobhanardakani S1 ; Shahmoradi B2, 3
Authors
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Authors Affiliations
  1. 1. Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran
  2. 2. Department of Environmental Health Engineering, Faculty of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran
  3. 3. Center of Solid Waste Research (CSWR), Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

Source: Water# Air# and Soil Pollution Published:2024


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. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.
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1. Photocatalytic Removal of Diazinon From Aqueous Solutions: A Quantitative Systematic Review, Environmental Science and Pollution Research (2022)