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J. Korean Ceram. Soc. > Volume 59(5); 2022 > Article
Journal of the Korean Ceramic Society 2022;59(5): 698-704.
doi: https://doi.org/10.1007/s43207-022-00210-3
Preparation, characterization, and photocatalytic degradation of methylene blue of SnO2/RGO nanocomposite produced by facile hydrothermal process
S. Moghaddas1, M. Salehi2, S. Bagheri-Kazemabad2
1Ceramic Department, Materials and Energy Research Center (MERC), Alborz, Iran
2School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
Correspondence  M. Salehi ,Email: maryamsalehi@iust.ac.ir
Received: November 16, 2021; Revised: April 1, 2022   Accepted: April 17, 2022.  Published online: May 10, 2022.
A facile hydrothermal route has been used to produce a SnO2 (tin oxide)/RGO (reduced graphene oxide) nanocomposite. The microstructure and properties of the prepared nanocomposite were studied by an X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), Fourier transformed infrared (FTIR), UV–Vis analysis, and transmission electron microscope (TEM). The formation of SnO2 phase over RGO is confirmed by the XRD and FTIR results. The absence of a distinct peak of GO in the SnO2/RGO nanocomposite produced hydrothermally shows the reduction of GO to RGO completely. FE-SEM and TEM images show that SnO2 nanoparticles with size about 20 nm distributed homogeneously on the graphene surface. UV–Vis analysis of the SnO2/RGO sample exhibits broad absorption in the visible range (400–700 nm) indicating the SnO2 formation on the sheets of reduced graphene oxide. Moreover, the nanocomposite was employed as a photocatalyst under UV light irradiations to the removal of methylene blue (MB). The produced SnO2/RGO nanocomposite removes the absorption peak of MB at around 665 nm within 20 min, implying the nanocomposite possesses good photocatalytic efficiency under UV light irradiations.
Key words: Graphene · Nanocomposite · Photocatalyst · SnO2 · UV irradiation
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