Synthesis of homogeneous PVP-capped SnS2 submicron particles via microwave irradiation

Homogeneous PVP-capped tin disulfide (SnS₂) submicron particles with narrow size distribution of ca. 300–500 nm have been successfully synthesized via microwave irradiation for 10 min for the first time. The samples were characterized using X-ray diffraction (XRD) and transmission electron microscope (TEM). In contrast, SnS₂ particles without PVP obtained under the same condition have irregular morphology. The experimental result indicated that PVP played an important role in controlling the shape and size distribution of particles, and in reducing the agglomeration degree of SnS₂ particles. The mechanism of PVPs improving the well dispersion of SnS₂ particles was discussed. The influence of solvent on the crystallinity of the as-prepared particles under microwave irradiation was primarily investigated.