Muhammad H. Habani, Wida P. Agista, Berliantty W. Putri, St. Ulfawanti I. Subadra, Arif Hidayat, S. Sunaryono, Ahmad Taufiq
This study aimed to investigate the role of rGO composition on nanostructure, functional group, and morphology of Mn0.25Fe2.75O4/rGO nanocomposites. The main precursor was prepared from natural resources of iron sand and corncob waste. The X-ray diffraction patterns of Mn0.25Fe2.75O4/rGO nanocomposites showed the presence of crystalline and amorphous originated from Mn0.25Fe2.75O4 and rGO, respectively. Based on data analysis, the crystallite size of the nanocomposites was increased from 13.6 nm to 14.8 nm with the addition of rGO. The Fourier-transform infrared spectrum showed the presence of metal-oxygen (M-O) bonds at the wavenumbers of 400 - 700 cm-1 and alkoxyl and epoxy groups at the wavelength of 1100 - 1250 cm-1, which exhibited functional groups characteristics of the Mn0.25Fe2.75O4/rGO nanocomposites. The scanning electron microscopy images showed that the nanocomposites agglomerated, which represented rGO and Mn0.25Fe2.75O4 nanoparticles. Furthermore, the Mn0.25Fe2.75O4 nanoparticles deposited on the surface of rGO. © 2023 Author(s).
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
