Fadhil Fathurochman, Sunaryono Sunaryono, Eny Latifah, Nadiya Miftachul Chusna, Nandang Mufti, Ahmad Taufiq
Mn0.25Fe2.75O4 NPs were synthesized from natural iron sand. Natural iron sand was dissolved to produce FeCl2 and FeCl3 solutions. These solutions and MnCl2 were mixed resulting the Mn0.25Fe2.75O4 precipitations. Furthermore, the precipitations and SiO2/GO nanocomposite were mixed with the resulting Mn0.25Fe2.75O4/SiO2/GO nanocomposites sample. The samples were characterized using XRD and FTIR instruments to investigate the crystal structure and functional groups, respectively. The XRD pattern showed that the sample had three crystal phases in nanometric size. The peak of the Fe3O4 phase indicates that the crystal phase of Mn0.25Fe2.75O4 was detected in cubic spinel structure. The peak of SiO2 and GO phases were detected on 2θ around 22-25o and 10.6o, respectively. Meanwhile, the IR spectra from the FTIR instrument showed that Fe-O binding was detected. This bonding was representative of Mn0.25Fe2.75O4. The Si-O-Si and O-H, C-O, C=O bonding confirmed that the SiO2/GO has been successfully formed in Mn0.25Fe2.75O4/SiO2/GO nanocomposites. © 2025 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; PUI-PT Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia
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