Electromagnetic Interference Shielding and Characterization of Ni2+ Substituted Cobalt Nanoferrites Prepared by Sol-Gel Auto Combustion Method

Kuekha, Rezhna; Mubarak, Tahseen H.; Azhdar, Bruska

doi:10.1155/2022/3992402

Cited by 6 publications

(1 citation statement)

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“…substitution. The observation may be explained by the difference in radius between the Ni 2+ ion and the Co 2+ ion, which aligns with the conclusions drawn from the previous research [23].…”

Section: Synthesis Of Techniquessupporting

confidence: 91%

Potential Antibacterial Applications and Synthesis, Structural, Magnetic, Optical, and Dielectric Characterization of Nickel-Substituted Cobalt Ferrite Nanoparticles

Reda,

Samatha,

Sanasi

et al. 2024

Preprint

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Nanoparticle technology is fast progressing and is being employed in innumerable medical applications. At this time, the public's health is seriously threatened by the rise of bacterial strains resistant to several medications. Metal nanoparticles are a potential alternate approach for tackling this global concern, and this is the main focus of this study. The citrate precursor sol-gel synthesis method was used to synthesize the, Ni_x Co_(1-x) Fe_2 O_4, (where x = 0.0:0.2:1.0) nanoparticle. XRD identified the development of the cubic crystal structure to have a preferential orientation along (311), and the average particle size was found to be 29-38 nm. The average crystallizes assessed with ImageJ software and origin 22 of the SEM are nearly identical to the XRD results. In the created NCF NPs, the FT-IR spectroscopy reveals structural examinations and the redistribution of cations between octahedral (505-428 cm-1) and tetrahedral (653-603 cm-1) locales. Finally, the decrease of coercive fields HC, 2384 Oe to 241.93 Oe replacement of Co2+ cation with Ni2+. Band gap energy rises as Ni concentration increases, which may be attributed to the fact that the ionic radii of Ni2+ ions are smaller than that of Co2+ ions, which results in a strong electrostatic interaction. On the contrary, except at x = 0.4, the dielectric constant decreases as the nickel concentration increases. According to the findings of this research work, nanoparticles composed of Ni_0.4 Co_0.4 Fe_2 O_4 have demonstrated a promising value against S. aureus and E. coli, and it suggests a proposed model for their potential use as a new source of antibacterial agent.

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Section: Synthesis Of Techniquessupporting

confidence: 91%