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Green synthesis of cerium oxide nanoparticles using Calotropis procera flower extract and their photocatalytic degradation and antibacterial activity

Antibacterial activity of C. procera flower extract and biosynthesized CeO2-NPs. [Display omitted] •Synthesis of CeO2-NPs by biological methods using Calotropis procera flower extract.•The synthesized CeO2-NPs were characterized by UV–Visible, XRD, HR-TEM and FT-IR.•Effective photocatalytic degradat...

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Bibliographic Details
Published in:Inorganic chemistry communications 2020-09, Vol.119, p.108086, Article 108086
Main Authors: Muthuvel, A., Jothibas, M., Mohana, V., Manoharan, C.
Format: Article
Language:English
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Summary:Antibacterial activity of C. procera flower extract and biosynthesized CeO2-NPs. [Display omitted] •Synthesis of CeO2-NPs by biological methods using Calotropis procera flower extract.•The synthesized CeO2-NPs were characterized by UV–Visible, XRD, HR-TEM and FT-IR.•Effective photocatalytic degradation of MO dye with 98% in 50 min under sunlight irradiation.•Excellent antibacterial activities shown by biosynthesized CeO2-NPs using Calotropis procera flower extract. The eco-friendly synthetic approach for preparing CeO2-NPs using C. procera flower extract. The synthesized CeO2-NPs were studied for their UV–Vis, XRD and HR-TEM. The X-ray diffraction studies confirmed the cubic structure of synthesized CeO2-NPs with an average crystallite size of 7 nm. High Resolution Transmission Electron Microscope (HR-TEM) images showed that the CeO2-NPs possessed spherical shape and particle size of 21 nm. The photocatalytic degradation of methyl orange (MO) dye under sunlight irradiation by biosynthesized CeO2-NPs was analyzed. The synthesized CeO2-NPs exhibited 98% degradation activity against MO dye. Furthermore, antibacterial activity of C. procera flower extract and biosynthesized CeO2-NPs were studied. The biosynthesized CeO2-NPs exhibits a important antibacterial activity against Gram negative bacteria Escherichia coli and Pseudomonas aeruginosa than Gram positive bacteria.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2020.108086