One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

Zhonghe Du; Xibang Chen; Youwei Zhang; Xueyan Que; Pinggui Liu; Xiuqin Zhang; Hui-Ling Ma; Maolin Zhai

doi:10.3390/ma13143065

One-Pot Hydrothermal Preparation of Fe₃O₄ Decorated Graphene for Microwave Absorption

Materials (Basel). 2020 Jul 9;13(14):3065. doi: 10.3390/ma13143065.

Authors

Zhonghe Du¹, Xibang Chen², Youwei Zhang³, Xueyan Que², Pinggui Liu³, Xiuqin Zhang¹, Hui-Ling Ma¹, Maolin Zhai²

Affiliations

¹ Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
² Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
³ Beijing Institute of Aeronautical Materials, Beijing 100095, China.

Abstract

Fe₃O₄ decorated graphene was synthesized for electromagnetic wave absorption via a facile one-pot hydrothermal approach. The structure and morphology of the as-prepared nanomaterials were systematically investigated. The graphene oxide (GO) was reduced and Fe₃O₄ nanoparticles were evenly decorated on the surface of reduced graphene oxide (rGO) nanosheets. The average particle size of Fe₃O₄ nanoparticles is about 15.3 nm. The as-prepared rGO-Fe₃O₄ nanocomposites exhibited a good microwave absorption performance because of the combination of graphene and magnetic Fe₃O₄. When the thicknesses are 1.6 mm and 6.5 mm, the reflection loss (RL) values are up to -34.4 dB and -37.5 dB, respectively. The effective bandwidths are 3.8 and 1.9 GHz.

Keywords: Fe3O4 nanoparticles; graphene; hydrothermal method; microwave absorption; nanocomposites.

Abstract

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