Physical and magnetic properties of (Ba/Sr) substituted magnesium nano ferrites

Optical, Structural, Morphological, Antibacterial, and Photodegradation Characteristics of BaxMg0.8−xFe2O4(x = 0.2, 0.4, and 0.6) Nanocrystalline Powders Synthesized by Combustion Method

“…Despite their large anionic radii, a few Ba 2þ ions diffuse to the grain barriers and form aggregates at the grain boundary causing the grains to push together and reducing the lattice parameter. [15] Similar decrease in lattice constant was found by Haiwei Du et al [25] and Wangchang et al [26] The declining trend also indicates that the spinel ferrite matrix can easily accommodate the Mg 2þ ions. In our case, the cation replacement results in a decrease in cell volume.…”

“…[ 12–14 ] For instance, Ebtesam et al recently investigated the impact of Sr 2+ /Ba 2+ substitution on spinel ferrites. [ 15 ] The possible application of barium (Ba)‐doped metal oxide nanoparticles for the photodegradation of a combination of dyes was investigated by Modwi et al [ 16 ] It has been discovered that doping Ba 2+ significantly alters the lattice, trapping photogenerated electron–hole pairs, lowering the rate of recombination, and enhancing the photocatalytic effect. In addition, it is thought that the doping of Ba improves the contact area between the catalyst and organic dye, increasing the likelihood of charge transfer, and so improving catalytic efficiency.…”

Multi-susceptible single-phased hexaferrite with significant magnetic switching properties by selectively doping

“…The experimental magnetic moment per unit formula (M mo, exp ) can also be computed via the following equation [58] and the obtained results are presented in table 2.…”