Preparation of the magnetotactic wood through the biomimetic mineralization for application in electromagnetic wave absorption

WANG Hanwei; SUN Qingfeng; SHENG Chengmin; YANG Ning

doi:10.3981/j.issn.1000-7857.2017.22.009

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Science & Technology Review ›› 2017, Vol. 35 ›› Issue (22) : 71-76. DOI: 10.3981/j.issn.1000-7857.2017.22.009

Preparation of the magnetotactic wood through the biomimetic mineralization for application in electromagnetic wave absorption

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1. School of Engineering, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China;
2. Key Laboratory of Wood Science and Technology of Zhejiang Province, Hangzhou 311300, China

Abstract

Based on the principle of the biomimetic mineralization and with the aspartic acid as the biomolecule inducer, the magnetotactic wood is prepared through the deposition of the MnFe₂O₄ crystal on the wood surface via the solvothermal method at low temperature. The asprepared wood is characterized by the X-ray diffraction (XRD), the scanning electron microscopy (SEM), the Fourier transform infrared spectroscopy (FT-IR), the vibrating sample magnetometer (VSM) and the vector network analysis (VNA). The results show that the magnetic MnFe₂O₄ could be deposited on the wood surface to form the magnetotactic wood induced by the aspartic acid under the alkaline solvothermal mineralization at low temperature. A minimum reflection loss of the magnetotactic wood is-12 dB at 15.52 GHz. Simultaneously, the RL is below-12 dB ranging from 14 to 17 GHz. Therefore, the magnetotactic wood would find a great potential application for preventing the indoor electromagnetic wave pollution.

Key words

magnetotactic wood / MnFe₂O₄ / biomimetic mineralization / electromagnetic wave absorption

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WANG Hanwei, SUN Qingfeng, SHENG Chengmin, YANG Ning. Preparation of the magnetotactic wood through the biomimetic mineralization for application in electromagnetic wave absorption[J]. Science & Technology Review, 2017, 35(22): 71-76 https://doi.org/10.3981/j.issn.1000-7857.2017.22.009

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