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Microwave-assisted synthesis of reduced graphene oxide/V2O5 nano-composite as an efficient photocatalyst for dye degradation

Bhardwaj, D and Sangwan, S and Shivashankar, SA and Umarji, AM (2022) Microwave-assisted synthesis of reduced graphene oxide/V2O5 nano-composite as an efficient photocatalyst for dye degradation. In: Bulletin of Materials Science, 45 (3).

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Official URL: https://doi.org/10.1007/s12034-022-02707-3


Abstract: In the present study, rapid and green microwave synthesis has been used to synthesize V2O5 and reduced graphene oxide decorated with V2O5, a hybrid nanocomposite (rGO/V2O5), using an inorganic precursor. The synthesized nanocomposite is characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and UV–visible spectroscopy. The photocatalytic activity of V2O5 and rGO/V2O5 was studied by degrading methylene blue dye in sunlight. The kinetics of the dye degradation is studied by calculating the rate constant and the half-life of the degradation process. The rGO/V2O5 nanocomposite showed low resistance, thus increasing the diffusion of electrons, which prevents electron–hole recombination and hence enhances photocatalytic activity (80% degradation efficiency) when compared with bare V2O5. Graphical abstract: [Figure not available: see fulltext.].

Item Type: Journal Article
Publication: Bulletin of Materials Science
Publisher: Springer
Additional Information: The copyright for this article belongs to the Springer.
Keywords: Aromatic compounds; Degradation; Fourier transform infrared spectroscopy; Graphene; Photocatalytic activity; Rate constants; Scanning electron microscopy; Vanadium pentoxide, Dye degradation; Hybrid nanocomposites; Inorganic precursor; Microwave assisted synthesis; Microwave synthesis; Nano composite; Photocatalytic activities; Reduced graphene oxide; Reduced graphene oxides; Synthesised, Nanocomposites
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 04 Aug 2022 09:18
Last Modified: 04 Aug 2022 09:18
URI: https://eprints.iisc.ac.in/id/eprint/75289

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