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Influence of temperature on structure, morphology, and magnetic property of graphene–MnFe2O4 nanocomposites synthesized by a combined hydrothermal/co-precipitation method

Thu, T.V. and Thao, V.D. (2018) Influence of temperature on structure, morphology, and magnetic property of graphene–MnFe2O4 nanocomposites synthesized by a combined hydrothermal/co-precipitation method. Applied Physics A: Materials Science and Processing, 124 (10): 675. ISSN 9478396

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Abstract

Combination of co-precipitation and hydrothermal methods is a promising route to synthesize various materials. Herein, we synthesized reduced graphene oxide/manganese ferrite (rGO/MnFe2O4) nanocomposites through combining a co-precipitation reaction of Mn2+ and Fe3+ ions in GO solution with subsequent hydrothermal treatment at different temperatures (80, 130, and 180 °C). The resulting rGO/MnFe2O4 nanocomposites were characterized using X-ray diffractometry, Fourier-transform infrared spectroscopy, scanning and transmission electron microscopy, and magnetic measurements at room temperature. The influence of hydrothermal temperature on structural, morphological, magnetic and As(III) adsorption properties of rGO/MnFe2O4 nanocomposites was studied. Increasing hydrothermal temperature leads to better crystallinity, magnetic properties, and As(III) adsorption capacity. At the hydrothermal temperature of 180 °C, the resulting rGO/MnFe2O4 nanocomposites exhibited a crystalline size of 37.2 nm, saturated magnetization of 22.7 emu/g, and As(III) removal efficiency of 83% at neutral pH (pH ≈ 7). © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

Item Type: Article
Divisions: Faculties > Faculty of Physical and Chemical Engineering
Identification Number: 10.1007/s00339-018-2092-5
Uncontrolled Keywords: Coprecipitation; Fourier transform infrared spectroscopy; Graphene; High resolution transmission electron microscopy; Magnetic properties; Magnetism; Manganese compounds; Nanocomposites; Scanning electron microscopy; Transmission electron microscopy; X ray diffraction analysis; Adsorption capacities; Adsorption properties; Hydrothermal methods; Hydrothermal temperature; Hydrothermal treatments; Reduced graphene oxides; Saturated magnetization; Scanning and transmission electron microscopy; Iron compounds
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9519

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