4.7 Article

Green synthesis of zinc oxide nanoparticles using Brassica oleracea var. botrytis leaf extract: Photocatalytic, antimicrobial and larvicidal activity

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CHEMOSPHERE
卷 323, 期 -, 页码 -

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2023.138263

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Brassica oleracea var; botrytis; Zinc oxide; Thiazine dye; Photocatalytic degradation; Antibacterial and larvicidal activity

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Green synthesis of zinc oxide nanoparticles (ZnO NPs) using plant leaf extracts has been successfully carried out in this study. The synthesized BO-ZnO NPs exhibited photocatalytic and antibacterial activities. Characterization of BO-ZnO NPs was performed using various instrumental techniques, confirming the formation of nanoparticles with a hexagonal wurtzite structure and an average size of 52 nm. The presence of hydroxyl, carbonyl, carboxylic, and phenol groups was also confirmed.
Green synthesis of nanomaterials has emerged as an ecofriendly sustainable technology for the removal of dyes in the last few decades. Especially, plant leaf extracts have been considered as inexpensive and effective materials for the synthesis of nanoparticles. In this study, zinc oxide nanoparticles (ZnO NPs) were prepared using leaves extract of Brassica oleracea var. botrytis (BO) by co-precipitation and applied for photocatalytic/antibacterial activity. The synthesized BO-ZnO NPs was characterized by different instrumental techniques. The UV-vis Spectrum of the synthesized material showed maximum absorbance at a wavelength of 311 nm, which confirmed the formation of BO-ZnO NPs. The XRD pattern of BO-ZnO NPs represents a hexagonal wurtzite structure and the average size of particles was about 52 nm. FT-IR spectrum analysis confirms the presence of hydroxyl, carbonyl, carboxylic, and phenol groups. SEM images exhibited a flower like morphology and EDX spectrum confirming

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