Dini Frihanderi Aprita, Ahmad Taufiq, Arif Hidayat, Rosy Eko Saputro
This study reports the synthesis of MnFe2O4/TMAH ferrofluid from iron sand using co-precipitation method. The x-ray diffraction patterns of MnFe2O4/TMAH represented the inverse cubic spinel structure with the crystallite size and lattice parameters of 13.3 nm and 8.395 Å, respectively. The FTIR results of MnFe2O4 showed the presence of O-H bound at the wavenumbers of 1416, 1623, and 3432 cm-1, indicating the adsorbed water molecules. Besides, Fe-O bond were also observed at wavenumbers of 400 – 600 cm-1 and Mn-O bond at the wave number about 433 cm-1. The EDX results were also confirmed the existance of Fe, Mn, and O, indicating that the sample had a high purity level The results of SEM analysis show that the nanoparticles have a spherical shape and are agglomerated with an average particle size 62.3 nm. Therefore, ferrofluid MnFe2O4 based on TMAH surfactant has the potential as a temperature sensor. © 2023 American Institute of Physics Inc.. All rights reserved.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
