Preparation of RGO/Fe3O4 Nanocomposites as a Microwave Absorbing Material

The hydrophobic nanocomposites of reduced graphene oxide (RGO) and Fe3O4 (RGO/Fe3O4) were prepared by a one-pot process through co-precipitation under alkaline conditions. The microwave absorption performance of the RGO/Fe3O4 nanocomposites was analyzed according to their electromagnetic parameters....

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Bibliographic Details
Published in:Inorganics 2023-04, Vol.11 (4), p.143
Main Authors: Chen, Xingtian, Du, Shumin, Hong, Ruoyu, Chen, Huaiyin
Format: Article
Language:English
Subjects:
Acids
Carbon
co-precipitation
Composite materials
electromagnetic properties
ferroferric oxide
Graphene
Hydrophobicity
Iron oxides
Microwave absorption
Morphology
Nanocomposites
Nanocrystals
Nanoparticles
Particle size
reduced graphene oxide
Spectrum allocation
Spectrum analysis
Surfactants
Synergistic effect
Thickness
Vibration
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Summary:The hydrophobic nanocomposites of reduced graphene oxide (RGO) and Fe3O4 (RGO/Fe3O4) were prepared by a one-pot process through co-precipitation under alkaline conditions. The microwave absorption performance of the RGO/Fe3O4 nanocomposites was analyzed according to their electromagnetic parameters. The results showed that the RGO/Fe3O4 nanocomposites displayed better absorbing performance than the pristine Fe3O4 nanoparticles, owing to the synergistic effect of Fe3O4 and RGO. The maximum reflection loss (RL) of the RGO/Fe3O4 nanocomposites with a thickness of 2 mm reached −45.7 dB at 13.3 GHz, and the bandwidth (RL < −10 dB) ranged from 11.5 to 16.5 GHz. However, the maximum RL of the Fe3O4 nanoparticles with a thickness of 5 mm only reached −5.3 dB at 5.7 GHz. The RGO/Fe3O4 nanocomposites have a great potential application in high-performance electromagnetic microwave absorbing.
ISSN:2304-6740
2304-6740
DOI:10.3390/inorganics11040143