Magnetoviscous Property and Hyperthermia Effect of Amorphous Nanoparticle Aqueous Ferrofluids

Yang, Chuncheng; Yu, Mengchun; Zhao, Sumei; Tian, Yuan; Bian, Xiufang

doi:10.1186/s11671-018-2790-0

Cited by 13 publications

(2 citation statements)

References 56 publications

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“…46 The Fe−Ni−B and Fe particles consist of a broad peak in the 2θ range of 40−50°and no crystalline peak is observed, revealing an amorphous structure. 47 The result is consistent with the HRTEM image result. The amorphous structure is expected to enable samples with a higher BET surface area.…”

Section: Resultssupporting

confidence: 87%

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Ni–Fe/Reduced Graphene Oxide Nanocomposites for Hexavalent Chromium Reduction in an Aqueous Environment

Kang

Gao

et al. 2022

ACS Omega

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We designed and synthesized a novel high efficiency Cr(VI) removal material using reduced graphene oxide (RGO) as a support with high specific surface area and a mixture of Fe and Ni nanoparticles (NPs) as a catalytic reducing agent. Such a design enables the composite particle to be integrated with three functions of adsorption, catalysis, and reduction, where RGO could enhance Cr(VI) adsorption, while Fe/Ni NPs increase the catalytic reducing efficiency. The application of a microchip mixer guaranteed a better mixing of GO and subsequent decoration of Fe and Ni NPs on RGO. Cr(VI) removal experiments with various materials are performed, and the results demonstrated that the Ni−Fe/RGO achieved an adsorption capacity of 150.45 mg/g at pH = 7 and 197.43 mg/g at pH = 5 for Cr(VI), which is higher than those of other reported materials at a pH of ∼7. To the best of our knowledge, this is the first example of Ni−Fe/RGO for efficient Cr(VI) removal by using the synergistic effects of increased adsorption, catalysis-assisted reduction, and enhanced mixing effect of a microchip mixer. This work also provides us with a simple and low-cost method for the fabrication of an effective Cr(VI) removal material.

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Section: Resultssupporting

confidence: 87%

“…A noteworthy diffraction peak is found at 26.7° for all the samples, which belongs to the (002) diffraction of RGO . The Fe–Ni–B and Fe particles consist of a broad peak in the 2θ range of 40–50° and no crystalline peak is observed, revealing an amorphous structure . The result is consistent with the HRTEM image result.…”

Section: Resultsmentioning

confidence: 99%