Facile-synthesized carbonaceous photonic crystals/magnetic particle nanohybrids with heterostructure as an excellent microwave absorber
Facile-synthesized carbonaceous photonic crystals/magnetic particle nanohybrids with heterostructure as an excellent microwave absorber
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DOI：
10.1016/j.jallcom.2018.01.180
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发表时间：
2018-04
影响因子：
6.2
通讯作者：
C. Mu;Jiefang Song;Bochong Wang;F. Wen;Can Zhang;Cong Wang;Zhongyuan Liu;J. Xiang
中科院分区：
文献类型：
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作者：
C. Mu;Jiefang Song;Bochong Wang;F. Wen;Can Zhang;Cong Wang;Zhongyuan Liu;J. Xiang
本工作通过碳化蝴蝶翅膀制备了碳质光子晶体（CPC），并采用单模微波辅助水热法制备了CPC/磁性粒子（Fe 3 O 4和Fe）异质结构纳米杂化材料。扫描电子显微镜和透射电子显微镜的图像表明，CPC表现出一个独特的结构的周期性网络互连的脊和肋具有高度光滑的表面。磁性纳米颗粒也均匀地附着在CPC的脊和肋上。研究了CPCs/Fe 3 O 4和CPCs/Fe异质结构纳米杂化材料的吸波性能。CPC/Fe 3 O 4和CPC/Fe纳米杂化材料的最小反射损耗（RL）分别为−49.7和−31.2 dB。CPC/Fe 3 O 4的有效带宽（RL < −10 dB）为3.6 GHz（14.4-18.0 GHz），CPC/Fe纳米杂化材料的有效带宽为4.1 GHz（13.6-17.7 GHz）。与纯Fe_3O_4和Fe纳米粒子相比，CPC/Fe_3O_4和CPC/Fe纳米杂化材料的吸波性能得到了显著提高。这些结果表明，具有异质结构的CPC/磁性粒子纳米杂化物可以用作优良的微波吸收剂。
In this work, carbonaceous photonic crystals (CPCs) were obtained by the carbonization of butterfly wings, and the CPCs/magnetic particle (Fe3O4and Fe) nanohybrids with heterostructure were synthesized by a facile single-mode microwave-assisted hydrothermal method. Scanning electron microscopy and transmission electron microscopy images indicated that CPCs exhibited a distinct structure of a periodic network interconnected by ridges and ribs with a highly smooth surface. The magnetic nanoparticles were also uniformly attached on the ridges and ribs of CPCs. The microwave absorption performances of CPCs/Fe3O4and CPCs/Fe nanohybrids with heterostructure were investigated. The minimum reflection loss (RL) were −49.7 and −31.2 dB for CPCs/Fe3O4and CPCs/Fe nanohybrids, respectively. The effective bandwidths (RL < −10 dB) were 3.6 GHz (14.4–18.0 GHz) for CPCs/Fe3O4and 4.1 GHz (13.6–17.7 GHz) for CPCs/Fe nanohybrids. Compared with the pure Fe3O4and Fe nanoparticles, the microwave absorption performances of CPCs/Fe3O4and CPCs/Fe nanohybrids were markedly improved. These findings illustrated that the CPCs/magnetic particle nanohybrids with heterostructure can be used as an excellent microwave absorber.