Characterization of Bi_2S_3 with different morphologies synthesized using microwave radiation

摘要

Bi_2S_3 with different morphologies (nanoparticles, nanorods and nanotubes) was synthesized using bismuth nitrate pentahydrate (Bi(NO_3)_3·5H_2O) and two kinds of sulfur sources (CH_3CSNH_2 and NH_2CSNH_2) in different solvents (water, ethylene glycol and propylene glycol) via a microwave radiation method at 180 W for 20 min. X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicated that all of the products are orthorhombic Bi_2S_3 phase of nanoparticles, nanorods and nanotubes, influenced by the sulfur sources and solvents. Formation mechanisms of the products with different morphologies are also proposed.