Effect of the rare-earth substitution on the structural, magnetic and adsorption properties in cobalt ferrite nanoparticles

Wu, Xiaofei; Ding, Zhiyi; Song, Ningning; Li, Lin; Wang, Wei

doi:10.1016/j.ceramint.2015.11.100

Cited by 151 publications

(24 citation statements)

References 43 publications

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“…From this it can be deduced that the Fe 3+ , Sm 3+ and Gd 3+ ions on the B sites, reinforce the B-B super-exchange interactions, which leads to the improvement of magnetic properties. This enhancement in the magnetic properties is also attributed to the higher magnetic moment of Gd 3+ (7 µ B ) and Sm 3+ (0.71 µ B ) who are having a high spin magnetic moment compared to that of Fe 3+ (5µ B ) [55], [56].…”

Section: Magnetic Analysismentioning

confidence: 96%

New Nanosized (Gd3+, Sm3+) Co-doped Zinc Ferrite for Telecommunication Applications. Magnetic and Structural Properties.

Belaiche

Minaoui

Ouadou

et al. 2020

Preprint

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Highly crystalline ZnFe1.98Sm0.01Gd0.01O4 nanoferrites were prepared by co-precipitation method for the first time. The nanoparticles were characterized using thermogravimetric and differential scanning calorimetry analysis (TGA and DSC), which shows the thermal behavior of the reagents mixture. XRD analysis confirms the formation of nanocrystalline ferrite phase with Fd3m space group, and the particle size was observed to be 11 nm . The FTIR reveals two based bands of absorption characterize the formation of the spinel structure. An exhaustive study of the magnetic properties, morphology, crystallinity and effects of co-doping Gd3 + and Sm3 + was presented in detail. The average crystallites size was observed to decrease for Gd3+ and Sm3+ co-doping. Magnetic measurements reveal weak ferrimagnetic behavior at low temperature and superparamagnetic at high temperature with a blocking temperature at 55 K.

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Section: Magnetic Analysismentioning

confidence: 96%

New Nanosized (Gd3+, Sm3+) Co-doped Zinc Ferrite for Telecommunication Applications. Magnetic and Structural Properties.

Belaiche

Minaoui

Ouadou

et al. 2020

Preprint

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“…Wu et al studied the effect of rare-earth substitution on the structural and magnetic properties of cobalt ferrite using Pr 3+ , Sm 3+ , Tb 3+ and Ho 3+ via a hydrothermal route [ 72 ]. All rare-earth-substituted metals resulted in a decrease in the nanomaterial’s saturation magnetization (Ms).…”

Section: Literature Reviewmentioning

confidence: 99%

Multifunctional Magnetic Oxide Nanoparticle (MNP) Core-Shell: Review of Synthesis, Structural Studies and Application for Wastewater Treatment

Nnadozie

Ajibade

2020

Molecules

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The demand for water is predicted to increase significantly over the coming decades; thus, there is a need to develop an inclusive wastewater decontaminator for the effective management and conservation of water. Magnetic oxide nanocomposites have great potentials as global and novel remediators for wastewater treatment, with robust environmental and economic gains. Environment-responsive nanocomposites would offer wide flexibility to harvest and utilize massive untapped natural energy sources to drive a green economy in tandem with the United Nations Sustainable Development Goals. Recent attempts to engineer smart magnetic oxide nanocomposites for wastewater treatment has been reported by several researchers. However, the magnetic properties of superparamagnetic nanocomposite materials and their adsorption properties nexus as fundamental to the design of recyclable nanomaterials are desirable for industrial application. The potentials of facile magnetic recovery, ease of functionalization, reusability, solar responsiveness, biocompatibility and ergonomic design promote the application of magnetic oxide nanocomposites in wastewater treatment. The review makes a holistic attempt to explore magnetic oxide nanocomposites for wastewater treatment; futuristic smart magnetic oxides as an elixir to global water scarcity is expounded. Desirable adsorption parameters and properties of magnetic oxides nanocomposites are explored while considering their fate in biological and environmental media.

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“…18 Doping with trivalent metal ions (Ni 3+ , Gd 3+ and other rareearth metals) has been found to be effective in enhancing the adsorption capacity and surface properties of cobalt-ferrite NPs. 18,23 A report by Casbeer et al (2012) reviews the photocatalytic activity of various metal-ferrites including CoFe 2 O 4 alone or with other metal composites for the degradation of various dyes. 24 Although the literature shows the veried role of different amine-functionalized cobalt-iron oxide NPs for various biomedical uses, 3,19 their role in the removal of toxic azo dyes has not yet been fully established as the data in this eld is very limited.…”

Section: Introductionmentioning

confidence: 99%

Anionic azo dyes removal from water using amine-functionalized cobalt–iron oxide nanoparticles: a comparative time-dependent study and structural optimization towards the removal mechanism

et al. 2020

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Effect of the rare-earth substitution on the structural, magnetic and adsorption properties in cobalt ferrite nanoparticles

Cited by 151 publications

References 43 publications

New Nanosized (Gd3+, Sm3+) Co-doped Zinc Ferrite for Telecommunication Applications. Magnetic and Structural Properties.

New Nanosized (Gd3+, Sm3+) Co-doped Zinc Ferrite for Telecommunication Applications. Magnetic and Structural Properties.

Multifunctional Magnetic Oxide Nanoparticle (MNP) Core-Shell: Review of Synthesis, Structural Studies and Application for Wastewater Treatment

Anionic azo dyes removal from water using amine-functionalized cobalt–iron oxide nanoparticles: a comparative time-dependent study and structural optimization towards the removal mechanism

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