| Issue |
E3S Web of Conf.
Volume 537, 2024
International Scientific and Practical Conference “Sustainable Development of the Environment and Agriculture: Green and Environmental Technologies” (SDEA 2024)
|
|
|---|---|---|
| Article Number | 08020 | |
| Number of page(s) | 11 | |
| Section | Digital and Engineering Technologies as a Factor in the Intensive Development of Agriculture | |
| DOI | https://doi.org/10.1051/e3sconf/202453708020 | |
| Published online | 13 June 2024 | |
Evaluation of green synthesized Fe2O3@MnO2(core/shell) nanoparticles as antibacterial and adsorbent material for heavy metals
Department of Physics, College of Science for Women, University of Baghdad, Baghdad, Iraq
* Corresponding author: zainabjs_phys@csw.uobaghdad.edu.iq
In this research, a core /shell from Fe2O3@MnO2-Nanoparticale was manufactured by Leek leaf extract in greenway biosynthesis. This method works as a reducing and covering agent. Fe2O3@MnO2 NPs have been confirmed as an effective antibacterial agent for both Gram-positive and Gram-negative bacteria. Synthesized nanoparticles were more efficient against gram-positive bacteria than gram-negative bacteria, with corresponding values of (31, and 24 mm) for klebsiella pneumoniae and Escherichia coli. Adsorption of metals (Pb, Cr, Ni, and Cd) by Fe2O3@MnO2 NPs trapped in calcium alginate was examined for use as a contaminant removal from water for the first time in Iraq. The results showed that nanoparticles trapped by alginate adsorbed more than alginate alone, and thus the Fe2O3@MnO2 nanoparticles (NPs) were able to remove lead, chromium, nickel, and cadmium from aqueous solutions with adsorption rate ranging between (84-99) %. Characteristics of synthesized nanoparticles were studied using (UV-visible) -spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM).
© The Authors, published by EDP Sciences, 2024
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