Synthesis of Proper Magnetite Nanoparticles for Preparation of Activated Carbon-Based Nanocomposites as Magnetic Adsorbents
نویسندگان
1 Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
2 Chemical Processes Design Research Group, ACECR, Faculty of Engineering, University of Tehran, Tehran, I. R. Iran
3 Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
doi
10.22034/ijnn.2025.2014884.2448چکیده
In this study, magnetite, barium hexaferrite, coated, and uncoated iron nanoparticles were prepared. These magnetic nanoparticles were characterized through X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and empirical observation of the magnetic properties in practice. The results demonstrated that the barium hexaferrite nanoparticles were magnetically weak and suffered from a cumbersome and costly synthesis process. The uncoated iron nanoparticles were prone to oxidation when exposed to air, and coated iron nanoparticles showed weak magnetic properties. Given their simple synthesis method and strong magnetic properties, magnetite nanoparticles were suitable for magnetizing activated carbon. Toluene adsorption results showed that magnetic adsorbents from activated carbon nanocomposites containing 20% nanoparticles have desirable adsorption.
