Sunaryono Sunaryono, Haulina Chresnanda Azzahra, Chusnana Insjaf Yogihati, Juniastel Rajagukguk, Ahmad Taufiq
Fe3O4@SiO2 core-shell nanoparticles with variations of TEOS have been successfully fabricated by using polyol and sol-gel methods. The synthesized nanoparticles were characterized by using XRD, FTIR, SEM-EDX, and Magneto-thermal instruments to determine the nanostructure, functional groups absorption, morphological and thermal properties of the particles, respectively. The XRD data analysis results show that the greater the TEOS composition reduces the nanoparticle size distribution of the Fe3O4@SiO2 core-shell nanoparticles formed. This particle size distribution has been confirmed by SEM characterization, which reveals an average size of the Fe3O4@SiO2 core-shell nanoparticles of about 72.3 and 67.4 nm for the TEOS composition of 3 and 7 mL, respectively. The SiO2 composition also affects the thermal properties of the Fe3O4@SiO2 core-shell nanoparticles. The greater the SiO2 composition decreases the thermal temperature of the produced Fe3O4@SiO2 core-shell nanoparticles. This also affects the decreasing of the Specific Absorption Rate (SAR) of Fe3O4@SiO2 core-shell nanoparticles. Thus, the addition of the SiO2 composition can inhibit the distribution of the Fe3O4@SiO2 core-shell nanoparticles' thermal properties. © 2023 American Institute of Physics Inc.. All rights reserved.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan, Indonesia
