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Fabricating nano-sized BiVO4/InVO4/g-C3N4 photocatalysts for efficient degradation of Acid Blue 92 azo dye

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BiVO4 /InVO4 and BiVO4 /InVO4 /g-C3 N4 were prepared by hydrothermal and ultrasonicassisted hydrothermal methods respectively. All prepared samples were characterised by X-ray diffraction, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of the prepared catalysts was determined by degradation of Acid Blue 92 (AB92) under visible light. The rate constant and efficiency of AB92 degradation over BiVO4 /InVO4 /g-C3 N4 was higher than that over BiVO4 /InVO4 which indicates better photocatalytic activity of BiVO4 /InVO4 /g-C3 N4. This enhancement can be attributed to the suitable dispersion of BiVO4 and InVO4 particles on the g-C3 N4 surface. Furthermore, the conduction band and valence band edge potentials of InVO4, BiVO4 and g-C3 N4 extend the life-time of electron–hole pairs which is beneficial for the improvement of photocatalytic efficiency.
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Keywords: DYE DEGRADATION; G-C3 N4; MATERIALS CHARACTERISATION; PHOTOCATALYSIS; TERNARY COMPOSITES; VANADATES

Document Type: Research Article

Publication date: 01 June 2018

This article was made available online on 30 May 2018 as a Fast Track article with title: "Fabricating nano-sized BiVO4/InVO4/g-C3N4 photocatalysts for efficient degradation of Acid Blue 92 azo dye".

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  • Progress in Reaction Kinetics & Mechanism is an international journal for the quarterly publication of both in-depth reviews and research articles.

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