Porous Adsorbent Based on Kaolin and Nanomagnetic Cobalt Ferrite for Effective Removal of Pb(II) from Wastewater

Ziedan, Wasan; Hussain, Wafaa A.; Ismail, Mukhlis M.

doi:10.1007/s10948-024-06700-1

Cited by 4 publications

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“…4,5 The main chain of PVA is composed of carbon attached to hydroxyl groups at which hydrogen bonding can be formed, aiding the development of polymer complexes. Due to numerous potential uses of magnetic nanoparticles in highdensity magnetic recording, magnetic medication delivery, magnetic resonance imaging (MRI), 6 heavy metals removal, 7 etc., it has garnered a lot of attention in recent decades.…”

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confidence: 99%

Structural, Optical, and Morphological Study of Manganese Substituted Cobalt Ferrite and Its Effect on the Magnetic and Dielectric Properties of PVA Composites

Saeed,

Hussain,

Ismail

2024

ECS J. Solid State Sci. Technol.

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Nanopowders of Mn-substituted CoFe2O4 were prepared in different proportions using the sol-gel auto-combustion method and were structurally and morphologically studied. In another step, composites based on polyvinyl alcohol (PVA) with Mn-substituted CoFe2O4 fillers were prepared, and the effect of the Mn-substituted CoFe2O4 on the optical, magnetic, and dielectric properties was studied. X-ray analysis revealed the formation of polycrystalline Mn-substituted CoFe2O4. The results showed a decrease in the lattice constant with Mn2+ substituted and incorporated into the crystal structure of CoFe2O4. The Fourier confirmed the spinel structure of the Mn-substituted CoFe2O4 transform infrared spectrum where absorption bands appeared at 569–561 and 446–407 cm-1, which are attributed to tetrahedral and octahedral groups. The magnetic properties were affected when Mn ions were substituted with CoFe2O4, as shown by the results of VSM. It was observed that the saturation magnetization, remnant magnetization, and coercivity decreased with increasing Mn content. The dielectric constant and loss tangent of PVA/MnxCo1−xFe2O4 were also studied. The difference in the diameters of the substituted and host ions causes the dielectric constant to increase following the substitution of Mn ions.

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confidence: 99%