Synthesis of MoS2 Nanopowder Based on the Design of the Experiment with Taguchi
نویسندگان
1 Department of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad 6541853096, Iran
2 Department of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad 6541853096, Iran
3 Department of Materials Engineering, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran
4 Department of Chemistry, Tuyserkan Branch, Islamic Azad University, Tuyserkan, Iran
doi
10.22052/JNS.2026.01.075چکیده
Molybdenum disulfide nanopowders (MoS2) have been successfully prepared via solvothermal method using different precursors of molybdenum and sulfur, at different times and temperatures. According to L9 Taguchi orthogonal design, synthesizing process parameters of MoS2 powder are optimized for producing smaller powders with four process parameters, viz., and precursor of molybdenum, the precursor of sulfur, different times, and reaction temperatures. The prepared MoS2 powders were examined via scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD), and differential thermal analysis (DTA). SEM measurements were conducted to determine the grain size of the powders. According to the study conducted by Taguchi, the Mo precursor and reaction temperature had the most substantial effect on the particle size of MoS2. Finally, optimum conditions were achieved as follows: molybdic oxide as Mo precursor, sodium sulfide as a sulfur source, 72 h, and 150 °C as reaction time and temperature. The hexagonal 2H-MoS2 can be easily indexed for the XRD pattern of the sample synthesized from optimum conditions. FTIR spectrum of the optimized MoS2 showed the band at 469 cm-1 corresponds to the ν (Mo-S) and its SEM image exhibited the MoS2 nanolamellar with a diameter of 40-90 nm.
