Abstract
This study reports the impact of lanthanum (La) substituted Co–Cu ferrite nanoparticles on the rhodamine (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 were synthesized via a combustion approach with a peculiar lattice parameter behavior; which discussed through three hypotheses. The scanning transmission electron microscope - energy dispersive X-ray analysis (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 11.87–9.46 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.
Highlights
In day-to-day life environmental pollution from organic dyes became an intractable problem
The crucial necessity for these magnetic materials utilizing in storage data that it should been have moderate saturation magnetization and high coercivity (HC), which are satisfied in CoFe2O4 nanoparticles [8]
The yield CCL nanoferrites were investigated by XRD, FTIR, STEM-EDX besides its sundry features; dielectric, magnetic, optical and photocatalytic activity using the identical instruments in previous works [13, 15]
Summary
In day-to-day life environmental pollution from organic dyes became an intractable problem. We got excited to exploit a new nanoferrite containing both cobalt and copper cations (Co0.5Cu0.5Fe2O4) which doping with a rare earth element to augment their overall photocatalytic performance. Rather than their catalytic performances, Co0.5Cu0.5Fe2O4, acquire amazing properties among the reminder ferrite types [6]. CuFe2O4 nanoparticles with the Jahn-Teller ion (Cu2+) have ubiquitous applications; based on their magneto-strictive property for the ferrite material [9] In this investigation, by choosing Co0.5Cu0.5Fe2O4 nanoferrite to be the pristine sample we can obtain the two features producing high HC; higher magneto-crystalline anisotropy (by CoFe2O4) besides higher magnetostrictive property (by CuFe2O4). In view of hopeful properties of spinel ferrite nanoparticles, current research investigates structural, magnetoelectric, optical features besides photocatalytic activity of Co0.5Cu0.5LaxFe2−xO4 nanoparticles; which is not investigated until now
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