Fabrication of Magnetic Cenosphere Deposited with Fe₃O₄ Nanoparticles by Hydrothermal Method

Abstract:

We prepared the magnetic cenospheres deposited with magnetite Fe₃O₄ nanoparticles under hydrothermal conditions. The crystalline phase, magnetization properties, morphology, chemical composition and thermal stability of asobtained cenospheres are analyzed by Xray diffraction, vibrating sample magnetometer, scanning electron microscope, Xray energy dispersive spectroscope, transmission electron microscope, thermal gravimetric analysis and differential scanning calorimetry techniques. The results show that the inverse cubic spinel phase of Fe₃O₄ nanoparticles with an average size 50 nm are synthesized, and synchronously deposited on cenosphere surface. As the thickness of Fe₃O₄ coating increases, the saturation magnetization increases to some extent. The growth of Fe₃O₄ nanoparticles can be controlled by adding ethanol to the reaction solution.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 2021-2025
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.2021
• Online since: August 2013
• Authors: Hui Zhang, Jie Yao Song, Jian Chao Zhan
• Keywords: Cenosphere, Hydrothermal, Magnetite Fe₃O₄

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