In this study, hercynite magnetic nanoparticles (FeAl2O4 MNPs) were synthesized using commercially available materials, including FeCl2.4H2Oand Al(NO3)3·9H2O. The surface of FeAl2O4 MNPs was encapsulated using silica and then modifed by 3-aminooropropyltrimtoxysilane (APTMS). The modifed FeAl2O4 MNPs were further functionalized with tris(hydroxymethyl)amino methane (THAM). Finally, a new copper complex of THAM was stabilized on the surface of functionalized FeAl2O4 MNPs (Cu-THAM@SiO2@FeAl2O4) as a novel, magnetically recoverable, practical, and selective nanocatalyst. The nanocatalyst was characterized using a range of techniques, including atomic absorption spectroscopy (AAS), vibrating-sample magnetometer (VSM), X-ray-mapping analysis, energy dispersive X-ray spectroscopy (EDS), scanning electron microscope (SEM), thermogravimetric analysis (TGA), derivative thermogravimetric (DTG), Fourier transform infrared spectroscopy (FT-IR), and X-ray difraction (XRD) techniques. The results showed that Cu-THAM@SiO2@FeAl2O4 nanocatalyst was highly efciency, good selectivity, and excellent reusability in the synthesis of tetrazole derivatives through [3+2] cycloaddition of sodium azide (NaN3) with organic nitrile derivatives.
