Structural diversity and applications of spinel ferrite core - Shell nanostructures- A review

Kurian, Manju; Thankachan, Smitha

doi:10.1016/j.oceram.2021.100179

Cited by 47 publications

(26 citation statements)

References 285 publications

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“…However, spinel ferrite core−shell NS have been regularly used for the efficient removal of other potentially toxic compounds from wastewater, viz., organic dyes, radioactive metals, heavy metal ions, inorganic pollutants, and pharmaceuticals. 89 4.1.1. Reaction Kinetics and Mechanism of Adsorption.…”

Section: Ferrite Based Nanostructures For the Removal Of Nitroaromaticsmentioning

confidence: 99%

“…It is worth mentioning that the application of spinel ferrite NS in the adsorptive removal of nitroaromatics from wastewater has not been explored much. However, spinel ferrite core–shell NS have been regularly used for the efficient removal of other potentially toxic compounds from wastewater, viz., organic dyes, radioactive metals, heavy metal ions, inorganic pollutants, and pharmaceuticals …”

Section: Ferrite Based Nanostructures For the Removal Of Nitroaromaticsmentioning

confidence: 99%

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Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

Bhaduri

Dikshit

Kim

et al. 2022

ACS Appl. Nano Mater.

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Spinel ferrite nanostructures have played significant roles in the development of materials science and technology. Spinel ferrite nanostructures possess not only promising magnetic properties but also high resistivity, stability, and low eddy current losses. The recent progress in the utilization of spinel ferrite nanostructures for water remediation is reviewed with special emphasis on the adsorption, transformation, degradation, and catalytic reduction of nitroaromatics. Then, the structure–property relationships and design considerations of spinel ferrite nanostructures for catalytic applications are discussed in detail. Insights into the details of the various removal processes on the model spinel ferrite nanostructures are provided with a basic concept of nitroaromatics remediation. Subsequently, reaction kinetics and mechanisms are classified and their advantages and disadvantages are described. Lastly, challenges and future perspectives of spinel ferrite nanostructures for their practical applications are presented. With further advancement, spinel ferrites have potential to be practically utilized for a wide range of applications such as water treatment plants.

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Section: Ferrite Based Nanostructures For the Removal Of Nitroaromaticsmentioning

confidence: 99%

Section: Ferrite Based Nanostructures For the Removal Of Nitroaromaticsmentioning

confidence: 99%

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

Bhaduri

Dikshit

Kim

et al. 2022

ACS Appl. Nano Mater.

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“…Current research has been moving towards the new configuration development of heterostructured materials with increasingly complex structures to maximize their properties. Thus, the heterostructured materials by definition are usually based on the combination of two or more components to form composite structures, which can also be classified into decorated (or open-shell), core-shell, yolk-shell and Janus-like structures according to their configurations exhibit superior physical properties [434][435][436][437][438][439][440][441][442][443][444][445][446][447][448].…”

Section: One-dimensional (1d) Materialsmentioning

confidence: 99%

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

Conti

Dey

Pottker

et al. 2022

Preprint

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The hydro(solvo)thermal approaches due to their simplicity and relatively low cost have attracted great attention to novel advanced materials processing with controlled particle sizes and well-defined morphologies, including the desirable obtaining of diverse metastable phases. Furthermore, in this case, such advanced materials obtained by this strategy generally have a high crystallinity structure as the main characteristic, which is interesting for a wide range of technological applications of high performance. This critical review presents the recent progress and challenges in conventional and unconventional hydro(solvo)thermal synthesis of novel advanced materials with desirable functionality and outstanding physicochemical properties designed using such methods. Finally, in this perspective, we believe that this detailed knowledge of the effect of processing parameters and as they will affect the prepared materials structure-composition-morphology is a key step to providing new chemical insights for the rational advanced materials design.

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“…The coupling of magnetic phases to form a bi-magnetic interface at the nanoscale helps in tuning the magnetic properties of nanoparticles [ 1 , 2 ]. The presence of interface coupling between core and shell phases has shown improved efficiency in permanent magnets, recording media, microwave absorption, and biomedical applications [ 3 , 4 , 5 ]. Magnetic properties, such as saturation magnetization, exchange bias, and coercivity of coupled bi-magnetic nanoparticles, are greatly influenced by the thickness and nature of the interface phases.…”

Section: Introductionmentioning

confidence: 99%

Hyperthermia of Magnetically Soft-Soft Core-Shell Ferrite Nanoparticles

Narayanaswamy

Jagal

Khurshid

et al. 2022

IJMS

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Magnetically soft-soft MnFe2O4-Fe3O4 core-shell nanoparticles were synthesized through a seed-mediated method using the organometallic decomposition of metal acetyl acetonates. Two sets of core-shell nanoparticles (S1 and S2) of similar core sizes of 5.0 nm and different shell thicknesses (4.1 nm for S1 and 5.7 nm for S2) were obtained by changing the number of nucleating sites. Magnetic measurements were conducted on the nanoparticles at low and room temperatures to study the shell thickness and temperature dependence of the magnetic properties. Interestingly, both core-shell nanoparticles showed similar saturation magnetization, revealing the ineffective role of the shell thickness. In addition, the coercivity in both samples displayed similar temperature dependencies and magnitudes. Signatures of spin glass (SG) like behavior were observed from the field-cooled temperature-dependent magnetization measurements. It was suggested to be due to interface spin freezing. We observed a slight and non-monotonic temperature-dependent exchange bias in both samples with slightly higher values for S2. The effective magnetic anisotropy constant was calculated to be slightly larger in S2 than that in S1. The magnetothermal efficiency of the chitosan-coated nanoparticles was determined by measuring the specific absorption rate (SAR) under an alternating magnetic field (AMF) at 200–350 G field strengths and frequencies (495.25–167.30 kHz). The S2 nanoparticles displayed larger SAR values than the S1 nanoparticles at all field parameters. A maximum SAR value of 356.5 W/g was obtained for S2 at 495.25 kHz and 350 G for the 1 mg/mL nanoparticle concentration of ferrogel. We attributed this behavior to the larger interface SG regions in S2, which mediated the interaction between the core and shell and thus provided indirect exchange coupling between the core and shell phases. The SAR values of the core-shell nanoparticles roughly agreed with the predictions of the linear response theory. The concentration of the nanoparticles was found to affect heat conversion to a great extent. The in vitro treatment of the MDA-MB-231 human breast cancer cell line and HT-29 human colorectal cancer cell was conducted at selected frequencies and field strengths to evaluate the efficiency of the nanoparticles in killing cancer cells. The cellular cytotoxicity was estimated using flow cytometry and an MTT assay at 0 and 24 h after treatment with the AMF. The cells subjected to a 45 min treatment of the AMF (384.50 kHz and 350 G) showed a remarkable decrease in cell viability. The enhanced SAR values of the core-shell nanoparticles compared to the seeds with the most enhancement in S2 is an indication of the potential for tailoring nanoparticle structures and hence their magnetic properties for effective heat generation.

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Structural diversity and applications of spinel ferrite core - Shell nanostructures- A review

Cited by 47 publications

References 285 publications

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

Hyperthermia of Magnetically Soft-Soft Core-Shell Ferrite Nanoparticles

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