Fabrication of Mn1-xZnxFe2O4 ferrofluids from natural sand for magnetic sensors and radar absorbing materials

Heliyon

Syamsul Bahtiar¹  Rosy Eko Saputro²  Samian Samian³  Arif Hidayat³  Ahmad Taufiq³  Sunaryono Sunaryono³  Nurul Hidayat³  Defi Yuliantika³  Siriwat Soontaranon⁴ 

[1] Corresponding author.;Department of Metallurgy, Faculty of Engineering, Universitas Teknologi Sumbawa, Jl. Raya Olat Maras, Sumbawa, 84371, Indonesia;Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No 5, Malang 65145, Indonesia;Department of Physics, Faculty of Science and Technology, Universitas Airlangga, 60115 Surabaya, Indonesia;

关键词: Materials science;    Nanotechnology;    Electromagnetism;    Natural sand;    Mn1-xZnxFe2O4;    Ferrofluid;   

DOI  :  

来源: DOAJ

【 摘 要 】

Mn1-xZnxFe2O4 ferrofluids were produced from natural sand for magnetic sensors and radar absorbing materials. The X-ray diffraction data showed that the Zn partially substituted the Mn and Fe ions to construct a spinel structure. The increasing Zn composition decreased the lattice parameters of the structure. The transmission electron microscopy images showed that the filler Mn1-xZnxFe2O4 nanoparticles tended to agglomerate in three dimensions. Lognormal and mass fractal models were used to fit the small-angle X-ray scattering data of the ferrofluids demonstrated that the ferrofluids formed chain-like structures with a fractal dimension of 1.12–1.67 that was constructed from primary particles with sizes of 3.6–4.1 nm. The filler, surfactant, and carrier liquid of the ferrofluids were confirmed by the functional groups of the metal oxides, tetramethylammonium hydroxide, and H2O, respectively. The secondary particles contributed to the saturation magnetization of the Mn1-xZnxFe2O4 ferrofluids. The Mn1-xZnxFe2O4 ferrofluids demonstrated excellent performance as magnetic sensors with high stability, especially compared with MnFe2O4 ferrofluids. Furthermore, the ferrofluids exhibited excellent radar absorbing materials. The Mn1-xZnxFe2O4 ferrofluids prepared in this work may serve as a future platform for advancing magnetic sensors and radar absorbing materials.

【 授权许可】

Unknown