Fabrication,superhydrophobicity, and microwave absorbing properties of the magnetic γ-Fe2O3/bamboo composites |
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| Affiliation: | 1. School of Engineering, Zhejiang A&F University, Lin''an, China;2. Key Laboratory of Wood Science and Technology, Lin''an, China;1. School of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom;2. School of Mechanical, Aerospace & Civil Engineering, The University of Manchester, Manchester M13 9PL, United Kingdom;1. Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia;2. School of Science and Engineering, University of the Sunshine Coast, Sippy Downs, Queensland 4575, Australia;1. Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, PR China;2. Shenyang Jinbo Gas Compression Manufacturing Co. Ltd., Shenyang 110027, PR China;1. Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Materials, Trojanova 13, 120 00 Praha 2, Czech Republic;2. Department of Physics of Materials, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech Republic;1. Laboratory for Microstructure & Institute of Materials, Shanghai University, Shanghai 200072, China;2. Chongqing Key Laboratory of Photo-electric Functional Materials, College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China |
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| Abstract: | Magnetic γ-Fe2O3 nanoparticles were successfully deposited on the surface of the bamboo via a coprecipitation process at room temperature. Spherical-like magnetic γ-Fe2O3 nanoparticles with a diameter of about 17 nm displayed well superparamagnetic behavior and were chemically bonded to the bamboo surface through the combination of hydrogen groups. With further modification by 1H,1H,2H,2H-perfluorodecyltri ethoxysilane (FAS-17), magnetic γ-Fe2O3/bamboo composites (MBCs) expressed superhydrophobic performances to not only water but also common liquids like coffee, milk, ink, tea, and coke. When immersed into the corrosive solutions including strong acid (pH = 1), heavy alkaline (pH = 14), and salt with high concentration (5 M) for 24 h, superhydrophobic magnetic γ-Fe2O3/bamboo composites (SMBC) still remained magnetism as well as superhydrophobicity. Also, under harsh conditions like boiled at 100 °C for 4 h, frozen at ? 40 °C for 24 h, SMBCs were kept a robust magnetism and superhydrophobicity. Additionally, SMBC was a typical ferromagnet and exhibited some microwave absorbabilities. |
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