Fe3O4 nanoparticles decorated on a CuS platelet-based sphere: a popcorn chicken-like heterostructure as an ideal material against electromagnetic pollution

Xiaodong Sun; Mingxu Sui; Guangzhen Cui; Ling Li; Xiaopeng Li; Xuliang Lv; Fan Wu; Guangxin Gu

doi:10.1039/C8RA03015D

Fe₃O₄ nanoparticles decorated on a CuS platelet-based sphere: a popcorn chicken-like heterostructure as an ideal material against electromagnetic pollution†

Xiaodong Sun,

^a Mingxu Sui,^a Guangzhen Cui,^a Ling Li,^a Xiaopeng Li,^c Xuliang Lv,*^a Fan Wu

*^b and Guangxin Gu*^d

Author affiliations

* Corresponding authors

^a Key Laboratory of Science and Technology on Electromagnetic Environmental Effects and Electro-optical Engineering, The Army Engineering University of PLA, Nanjing, P. R. China
E-mail: xllu1957@126.com

^b School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
E-mail: wufan@njust.edu.cn, wufanjlg@163.com

^c National University of Defense Technology, Xi'an, P. R. China

^d Department of Materials Science, Fudan University, Shanghai, P. R. China
E-mail: Guangxingu@fudan.edu.com.cn

Abstract

Electromagnetic irradiation has caused environmental pollution and harmful effects on human health. The use of effective materials to attenuate electromagnetic energy is urgently required. In this study, Fe₃O₄ nanoparticles (NPs) decorated on a CuS platelet-based sphere (CuS/Fe₃O₄) with popcorn chicken-like micromorphology were synthesized through a solvothermal deposition method. The effects of reaction temperature and quantity of Fe₃O₄ NPs on the heterostructures, morphologies and electromagnetic absorption (EA) properties of the heterostructures were investigated. CuS/Fe₃O₄ heterostructures exhibited remarkable enhancement in comparison with pure Fe₃O₄ NPs and the CuS platelet-based sphere. With the contribution from dielectric and magnetic losses, a CuS/Fe₃O₄ heterostructure-loaded composite could achieve a minimum reflection loss (RL) of −61.32 dB at 14.00 GHz and an effective EA bandwidth (≤−10 dB) of 4.15 GHz at a thickness of only 1.5 mm simultaneously. The current study indicates that the CuS/Fe₃O₄ heterostructures can potentially be applied as advanced electromagnetic absorbers.

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Article information

DOI: https://doi.org/10.1039/C8RA03015D
Article type: Paper
Submitted: 08 Apr 2018
Accepted: 28 Apr 2018
First published: 14 May 2018
This article is Open Access

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RSC Adv., 2018,8, 17489-17496

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Fe₃O₄ nanoparticles decorated on a CuS platelet-based sphere: a popcorn chicken-like heterostructure as an ideal material against electromagnetic pollution

X. Sun, M. Sui, G. Cui, L. Li, X. Li, X. Lv, F. Wu and G. Gu, RSC Adv., 2018, 8, 17489 DOI: 10.1039/C8RA03015D

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