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    • 2022
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    •   AUW IR
    • Faculty Research
    • Science & Math
    • Current Faculties
    • Mosae Selvakumar Paulraj
    • Articles
    • 2022
    • View Item
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    Structural, Morphological, Optical, and Antibacterial Activities of Zinc Oxide Nanopowders: A Comparative Study of Green and Soft Chemical Synthesis

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    Date
    2022
    Author
    Saravanakumar, K.
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    Abstract
    Zinc oxide, a well-known inorganic metal oxide in nanoparticle form, has outstanding antibacterial properties. In this work, the authors focus on determining ZnO nanoparticles’ structural, optical, and antibacterial activity. A simple soft chemical route synthesizes C-ZnO nanoparticles chemically, while the green synthesis method is used to prepare G-ZnO nanoparticles. Ocimum tenuiorum leaf extract was used to prepare G-ZnO nanopowders. ese samples are investigated and compared in terms of their structural, morphological, optical, and antibacterial properties. According to XRD investigations, the synthesized ZnO nano- powders possess a hexagonal structure. e particle size of G-ZnO is smaller than that of C-ZnO nanoparticles. e XPS result revealed the binding and interactions between molecules. e FTIR study conrmed the presence of molecules and their vi- brations. UV-vis-DRS spectroscopy was used to investigate optical properties such as reectance and band gap. e grain size of the G-ZnO nanopowders was decreased, and oxygen vacancy was produced. e antibacterial eciency of plant extracts against two dierent bacterial strains, S. aureus (Gram-positive) and E.coli (Gram-negative), has been studied and reported.
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    repository.auw.edu.bd:8080//handle/123456789/958
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