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Selective Synthesis of Visible Light Active γ-Bismuth Molybdate Nanoparticles for Efficient Photocatalytic Degradation of Methylene Blue, Reduction of 4-Nitrophenol, and Antimicrobial Activity† by B. Lavakusa; Dharmaoth Rama Devi; Neway Belachew; K. Basavaiah is a Materials Science article available to read on EtoBox.

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In this study, we have reported selective synthesis of bismuth molybdate (γ-BiMO) nanoparticles (NPs) under different pH conditions for photocatalytic degradation of methylene blue (MB), reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) and antimicrobial activities. The synthesis of pure phase γ-BiMO at pH = 3 was confirmed by X-ray diffraction (XRD) and Raman analysis. A single hexagonal morphology was obtained at pH = 3 which shows the formation of the pure phase γ-BiMO NPs. The mixed morphologies (hexagonal and spherical) were observed at different pH values other than pH = 3. The bandgap energy of all the synthesized BiMO NPs is found in the visible region (2.48-2.59 eV). The photocatalytic activity of bismuth molybdate (BM) NPs was examined by the degradation of MB under visible light irradiation. Results show that 95.44% degradation efficiency was achieved by pure γ-BiMO NPs compared to mixed phases (γ-BiMO, α-BiMO and β-BiMO) synthesized at pH = 1.5 and 5. Moreover, the degradation efficiency of γ-BiMO was enhanced to 98.89% by the addition of HO. The effective catalytic activity of γ-BiMO was observed during the reduction of 4-NP to 4-AP by NaBH. Potential antibacte

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Author

B. Lavakusa; Dharmaoth Rama Devi; Neway Belachew; K. Basavaiah

Publisher

The Royal Society of Chemistry

Published

2020

Language

EN

Field

Materials Science (Physical Sciences)