Influence of Al3+ substituted cobalt nano-ferrite on structural, morphological and magnetic properties

Ounacer, M.; Rabi, B.; Essoumhi, A.; Sajieddine, M.; Costa, B. F. O.; Emo, Mélanie; Razouk, A.; Sahlaoui, M.

doi:10.1016/j.jallcom.2020.156968

Cited by 17 publications

(1 citation statement)

References 59 publications

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“…Then, the larger La cations will situate in B-site at expense of Fe 3+ ones, which forced some Fe 3+ cations to emigrate from B-to A-sites and consequently some Co 2+ and Cu 2+ , with their larger radii in B sites rather than in A-sites, will transfer from A-to B-sites; producing a exp increment behavior for the nanoferrite with (x = 0.15). Ounacer et al [22], declared a similar attitude and expound its result with the same reasoning.…”

Section: Xrd Analysismentioning

confidence: 66%

Enhancing the Magnetization, Dielectric Loss and Photocatalytic Activity of Co-cu Ferrite Nanoparticles Via the Substitution of Rare Earth Ions

Abdo

Mansour

Al-Hazmi

et al. 2021

Preprint

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This study reports the impact of lanthanum substituted Co-Cu ferrite nanoparticles on the RhB dye disposal. Moreover, a complete investigation for the structural, magnetic and optical properties for Co0.5Cu0.5LaxFe2-xO4 (CCL) nanoferrites was executed. These nanocrystals synthesized via a combustion approach with a peculiar lattice parameter behavior; which discussed through three hypotheses. STEM-EDX micrographs of some selective samples confirm the nanocrystalline nature with presence of all constituents’ chemical elements CCL nanoferrites. The saturation magnetization of CCL nanoferrites was tuned with La3+ ions substitution. Contrary to the expected results, anisotropy constant introduced a decrement behavior with La/Fe substitution process. The microwave frequency (ωM) values for all CCL nanoparticles are in the range 11.87 GHz–9.46 GHz. The band gap has a peculiar behavior; a red shift and followed by a blue one. Through photodegradation testing, we explicate the RhB degradation mechanisms over our CCL nanoferrites. The nanoferrite Co0.5Cu0.5La0.15Fe1.85O4 has a moderate saturation magnetization, highest coercivity, and lowest loss which is a suitable candidate for data recording applications, furthermore can be utilized as a photocatalyst for RhB effluents removal with degradation efficiency 94.50% at 180 min solar radiation.

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Section: Xrd Analysismentioning

confidence: 66%