Magnetic aerogel: an advanced material of high importance

Shah, Nasrullah; Rehan, Touseef; Li, Xuemue; Tetik, Halil; Yang, Guang; Zhao, Keren; Lin, Dong

doi:10.1039/d0ra10275j

Cited by 25 publications

(24 citation statements)

References 139 publications

(194 reference statements)

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“…42 While single-phase oxide-based magnetic aerogels are documented, 43−46 and a magnetic aerogel based on gadolinium phosphate was recently reported, 47 the present work represents the first example, to the best of our knowledge, of a phosphide-based magnetic aerogel. 42…”

Section: ■ Introductionmentioning

confidence: 69%

“…The magnetic properties of the Fe 1.3 Ni 0.7 x P aerogels formed with nanoparticles functionalized with 1-dodecanethiol (phosphite/ate-linked only) and 11-mercaptoundecanoic acid (phosphite/ate linked + metal-ion-linked via pendant carboxylate) are reported, and their behavior relative to the individual nanoparticles is discussed. We note that the majority of magnetic aerogels known to date are composites of magnetic components folded into nonmagnetic oxides, carbon, or polymers . While single-phase oxide-based magnetic aerogels are documented, − and a magnetic aerogel based on gadolinium phosphate was recently reported, the present work represents the first example, to the best of our knowledge, of a phosphide-based magnetic aerogel …”

Section: Introductionmentioning

confidence: 70%

“…We note that the majority of magnetic aerogels known to date are composites of magnetic components folded into nonmagnetic oxides, carbon, or polymers . While single-phase oxide-based magnetic aerogels are documented, − and a magnetic aerogel based on gadolinium phosphate was recently reported, the present work represents the first example, to the best of our knowledge, of a phosphide-based magnetic aerogel …”

Section: Introductionmentioning

confidence: 70%

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Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

et al. 2022

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Three-dimensional magnetic Fe1.3Ni0.7P nanorod assemblies (gels and aerogels) were prepared by oxidation of Fe1.3Ni0.7P nanorods capped with 11-mercaptoundecanoic acid (MUA) and 1-dodecanethiol (DDT), and their magnetic properties were evaluated in comparison to discrete nanorod precursors and in the context of the interfacial chemical characteristics associated with the ligand group employed. Treatment of MUA- and DDT-capped Fe1.3Ni0.7P nanorods with hydrogen peroxide results in gels that largely retain the structural (as assessed by powder X-ray diffraction) and morphological (as revealed by transmission electron microscopy) features of the nanorods in a pore–matter integrated network. However, aerogels created from MUA-capped particles undergo dispersion upon treatment with ethylenediaminetetraacetic acid (EDTA), whereas those produced from DDT-capped particles remain unchanged. Likewise, reductive annealing resulted in cleavage of the aerogel produced from DDT-capped particles, whereas the aerogels produced from MUA-capped particles remained intact, if more compact, as reflected in a ca. 50% decrease in surface area. The data are consistent with distinct interfacial chemistry in the two networks: amorphous phosphite/phosphate olation linkages in aerogels produced from DDT-capped particles vs a combination of phosphite/phosphate olation linkages and metal-ion cross-linking of pendant carboxylates in aerogels produced from MUA-capped particles. The superparamagnetic blocking temperature (T B) of discrete Fe1.3Ni0.7P nanoparticles, and the aerogels made from 11-MUA and 1-DDT exchanged nanoparticles, all appear in the range 30–40 K, and the field-dependent magnetization profiles (M–H) exhibit minimal hysteresis at 50 K with coercivity (H C) values ∼10 Oe. Thus, the Fe1.3Ni0.7 x P nanoparticles comprising the aerogel network behave independently, as expected for a disordered 3-D assembly, and the magnetic aerogels can be regarded as a summation of their individual components.

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Section: ■ Introductionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 70%

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Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

et al. 2022

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“…Most of the liquid is replaced by gas. − Meanwhile, the aerogel is maintained without changing the skeleton structure of the gel. Aerogels are a kind of nanostructured materials with porosity, high specific surface area, and light weight. − Because of these excellent characteristics, aerogels have broad application prospects in many fields such as adsorption of wastewater, , thermal insulation, and nanofibrillated templates. , The characteristics of aerogels such as low density, high porosity, and high specific surface area make it suitable for many biomedical fields, such as the field of biomaterials. ,− …”

Section: Introductionmentioning

confidence: 99%

Insights into the Prospective Aerogel Scaffolds Composed of Chitosan/Aramid Nanofibers for Tissue Engineering

Jin

Yang

et al. 2022

ACS Appl. Polym. Mater.

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As an emergent interdisciplinary subject, tissue engineering is widely used in the maintenance, repair, replacement, and reconstruction of the structure and function of cartilage, blood vessels, heart, skin, and liver. Tissue engineering includes three elements: seed cells, tissue engineering scaffolds, and tissue construction. Among them, tissue engineering scaffolds, especially porous scaffolds, play an important role. The support material should have ideal physical, chemical, and mechanical properties matching with the actual application, such as specific size and shape, an appropriate pore size, and appropriate porosity and surface properties. As a kind of natural biopolymeric linear polysaccharide, chitosan (CHi) has sterling properties including being nontoxic, nonirritant, biocompatible, bacteriostatic, and excellently hydrophilic. Aramid fibers (AF) belong to a class of synthetic fibers that are thermally stable, chemically stable, and highly temperature-resistant and have low mass and a long service life. Previous studies have demonstrated that bulk AF can be effectively split into aramid nanofibers (ANFs) via dissolution in a system of dimethyl sulfoxide (DMSO)/potassium hydroxide (KOH). Composite aerogels own a three-dimensional and pore-like structure with the advantages of light weight, high porosity, and large specific surface area, which are suitable for use in the field of tissue engineering. Addressed herein is the composite aerogel synthesized from CHi and ANFs using chemical crosslinking with glutaraldehyde (GA) for a tissue engineering scaffold, named ANFs/CHi/GA. The composite was characterized using Fourier transform infrared spectroscopy and X-ray diffraction. ANFs/CHi/GA was bacteriostatic with abundant cell adhesions and a uniform cell distribution. Cytotoxicity tests prove that the composite aerogel materials are nontoxic and the cells could proliferate greatly in their leaching solutions. Cells can adhere to and distribute well on the surface of the composite aerogel material, which is suitable for use in scaffold materials.

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“…High adsorption efficiency generally depends on the affinity of functional groups on the surface of the adsorbent to targets. 17 A number of materials, including nanoparticles of metal oxide, 18 organically modied mineral substances, 19,20 biochar, 21 and aerogel, 22 have been successfully employed to remove MG.…”

Section: Introductionmentioning

confidence: 99%

Magnetic GO/Fe₃O₄ for rapid malachite green (MG) removal from aqueous solutions: a reversible adsorption

Cao

et al. 2021

RSC Adv.

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Magnetic aerogel: an advanced material of high importance

Abstract: In this study, we overviewed the magnetic aerogel for the first time in terms of their major types and important applications, and have paved the way for the further research on this futuristic advanced material.

Cited by 25 publications

References 139 publications

Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Insights into the Prospective Aerogel Scaffolds Composed of Chitosan/Aramid Nanofibers for Tissue Engineering

Magnetic GO/Fe₃O₄ for rapid malachite green (MG) removal from aqueous solutions: a reversible adsorption

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Magnetic aerogel: an advanced material of high importance

Abstract: In this study, we overviewed the magnetic aerogel for the first time in terms of their major types and important applications, and have paved the way for the further research on this futuristic advanced material.

Cited by 25 publications

References 139 publications

Magnetic Fe1.3Ni0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Magnetic Fe1.3Ni0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Insights into the Prospective Aerogel Scaffolds Composed of Chitosan/Aramid Nanofibers for Tissue Engineering

Magnetic GO/Fe3O4 for rapid malachite green (MG) removal from aqueous solutions: a reversible adsorption

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Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Magnetic Fe_1.3Ni_0.7P Aerogels Prepared from Nanoparticle Assembly: The Functional Whole Is the Sum of Its Parts

Magnetic GO/Fe₃O₄ for rapid malachite green (MG) removal from aqueous solutions: a reversible adsorption