Synthesis and characterization of BiVO4 nanoparticles for environmental applications

In the present study, a chemical precipitation method is adopted to synthesize bismuth vanadate nanoparticles. The calcination temperature dependent photocatalytic and antibacterial activities of BiVO4 nanoparticles are examined. The structural analysis evidences the monoclinic phase of BiVO4 nanopa...

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Bibliographic Details
Published in:RSC advances 2020-05, Vol.10 (31), p.18315-18322
Main Authors: Ganeshbabu, M, Kannan, N, P Sundara Venkatesh, Paulraj, G, Jeganathan, K, MubarakAli, D
Format: Article
Language:English
Subjects:
Bismuth oxides
Chemical precipitation
Chemical synthesis
Chemistry
Grain size
Gram-positive bacteria
Methylene blue
Nanoparticles
Photocatalysis
Roasting
Structural analysis
Temperature dependence
Vanadates
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Summary:In the present study, a chemical precipitation method is adopted to synthesize bismuth vanadate nanoparticles. The calcination temperature dependent photocatalytic and antibacterial activities of BiVO4 nanoparticles are examined. The structural analysis evidences the monoclinic phase of BiVO4 nanoparticles, where the grain size increases with calcination temperature. Interestingly, BiVO4 nanoparticles calcined at 400 °C exhibit superior photocatalytic behaviour against methylene blue dye (K = 0.02169 min−1) under natural solar irradiation, which exhibits good stability for up to three cycles. The evolution of antibacterial activity studies using a well diffusion assay suggest that the BiVO4 nanoparticles calcined at 400 °C can act as an effective growth inhibitor of pathogenic Gram-negative (P. aeruginosa & A. baumannii) and Gram-positive bacteria (S. aureus).
ISSN:2046-2069
DOI:10.1039/d0ra01065k