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- Title
Effect of the molar ratio of (Ni<sup>2+</sup> and Fe<sup>3+</sup>) on the magnetic, optical and antibacterial properties of ternary metal oxide CdO–NiO–Fe<sub>2</sub>O<sub>3</sub> nanocomposites.
- Authors
Al-Mushki, Asma A. A.; Ahmed, Abdullah A. A.; Abdulwahab, A. M.; Qaid, Salem A. S.; Alzayed, Nasser S.; Shahabuddin, Mohammed; Abduljalil, Jameel M. A.; Saad, Fuad A. A.
- Abstract
In this work, the effect of the molar ratio of (Ni2+ and Fe3+) on the properties of CdO–NiO–Fe2O3 nanocomposites was investigated. The synthesis of CdO–NiO–Fe2O3 nanocomposites was carried out by self-combustion. XRD, UV–Vis, PL and VSM were used to describe the physical properties of the materials. The results showed significant progress in structural and optical properties supporting antibacterial activity. For all samples, the particle size decreased from 28.96 to 24.95 nm with increasing Ni2+ content and decreasing Fe3+ content, as shown by the XRD pattern, which also shows the crystal structure of cubic CdO, cubic NiO, and cubic γ-Fe2O3 spinel. The Ni2+ and Fe3+ contents in the CdO–NiO–Fe2O3 nanocomposites have also been shown to enhance the ferromagnetic properties. Due to the significant coupling between Fe2O3 and NiO, the coercivity Hc values of the samples increase from 66.4 to 266 Oe. The potential of the nanocomposites for antibacterial activity was investigated against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa, Escherichia coli, and Moraxella catarrhalis) bacteria. Comparison of P. aeruginosa with E. coli, S. aureus and M. catarrhalis showed that it has a stronger antibacterial activity with a ZOI of 25 mm.
- Subjects
OPTICAL properties; NANOCOMPOSITE materials; ESCHERICHIA coli; MORAXELLA catarrhalis; GRAM-negative bacteria; METALLIC oxides
- Publication
Scientific Reports, 2023, Vol 13, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-023-36262-6