Novel NRGO-CoWO4-Fe2O3 nanocomposite as an efficient catalyst for dye degradation and reduction of 4-nitrophenol
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Date
2018
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Publisher
Elsevier Ltd
Abstract
Novel NRGO-CoWO<inf>4</inf>-Fe<inf>2</inf>O<inf>3</inf> (N-doped reduced graphene oxide-cobalt tungstate-iron oxide) ternary nanocomposite was prepared by using simple microwave method. The synthesized materials were thoroughly characterized by X-ray diffraction (XRD) studies, Brunauer-Emmett-Teller (BET) analysis, transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, photoluminescence (PL) and UV-Visible spectroscopy. The nanocomposite was studied for its catalytic activity in degradation of methylene blue (MB) and reduction of 4-Nitrophenol (4-NP) to 4-Aminophenol (4-AP). The observed results of catalytic efficiency and rate constants indicated that the NRGO-CoWO<inf>4</inf>-Fe<inf>2</inf>O<inf>3</inf> nanocomposite can perform as an excellent catalyst compared to other composite materials. The detailed experimental study revealed that this ternary nanocomposite shows a great promise as a candidate for various environmental applications. © 2018 Elsevier B.V.
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Keywords
Aromatic compounds, Catalyst activity, Catalysts, Doping (additives), Electron microscopy, Graphene, High resolution transmission electron microscopy, Iron oxides, Nanocomposites, Organic pollutants, Rate constants, Reduction, Tungsten compounds, Ultraviolet visible spectroscopy, X ray diffraction, Brunauer emmett tellers, Catalytic efficiencies, Dye degradation, Environmental applications, Methylene Blue, NRGO, Reduced graphene oxides, UV visible spectroscopy, X ray photoelectron spectroscopy
Citation
Materials Chemistry and Physics, 2018, 208, , pp. 112-122