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- W2896183708 abstract "Ag/Fe3O4/CuO/ZnO/nanographene platelets (NGP) composites with different NGP loadings were synthesized in the present study using a simple hydrothermal method. The photocatalytic activities of the prepared Ag/ Fe3O4/CuO/ZnO/NGP composites were then studied for their ability to degrade different kinds of dyes in aqueous solutions under visible light irradiation. The X-ray diffraction (XRD) results indicate a face-centered cubic structure for Ag, a cubical spinel structure for Fe3O4, a monoclinic structure for CuO, and a hexagonal wurtzite structure for ZnO. Furthermore, a graphite-like structure could be detected for NGP. The thermal stability of the samples was evaluated by TGA; the results further confirm the good agreement between the actual and theoretical (5, 10, and 15 wt.%) weight loadings of NGP in the samples. Ultraviolet–visible (UV–Vis) absorbance spectroscopy was used to analyze the optical properties of the prepared samples; a surface plasmon resonance (SPR) phenomenon could be detected around ~ 440 nm and after the addition of NGP, the absorption band shifted to the visible light region. The ternary Ag/ Fe3O4/CuO/ZnO/NGP composites exhibit a significantly enhanced photocatalytic activity than either Ag/ Fe3O4/CuO/ZnO or Fe3O4/CuO/ZnO in degrading a methylene blue (MB) dye in an aqueous solution. When the NGP loading was 10 wt.%, the composites displayed the highest photocatalytic activity. The Ag/ Fe3O4/CuO/ZnO/NGP could efficiently degrade a variety of organic dyes, such as MB, Congo red (CR), and methyl orange (MO) under visible light irradiation. The species active in the degradation process were found to be the holes. More importantly, Ag/ Fe3O4/CuO/ZnO/NGP composites demonstrated good stability and reusability in repetitive photocatalytic activity processes." @default.
- W2896183708 created "2018-10-26" @default.
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- W2896183708 date "2018-01-01" @default.
- W2896183708 modified "2023-09-23" @default.
- W2896183708 title "Ag/Fe3O4/CuO/ZnO incorporated NGP materials: Visible light driven photocatalysts for the degradation of water pollutants" @default.
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- W2896183708 doi "https://doi.org/10.1063/1.5064040" @default.
- W2896183708 hasPublicationYear "2018" @default.
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