Identifying the Suitability of MoS2 Nanoparticles by Two Different Methods for Photo Catalytic Applications

Abstract

We report two different methods to synthesize MoS2 nanoparticles such as co-precipitation and sol–gel. The MoS2 nanoparticles were characterized by Powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT-IR) spectroscopy, UV–Visible spectroscopy (UV–Vis) and transmission electron microscopy (TEM), Fourier Transform Scanning electron microscopy (FESEM) with Energy Dispersive Analysis X-ray (EDAX). The nanoparticles prepared by sol–gel method had enhanced average crystallite size and better morphology at the nanoscale level for photo harvesting property. The synthesis methods of MoS2 nanoparticles are interesting which can be used to control the grain size and surface morphology of nanoparticles. The occurrence of indirect band gap of MoS2 nanoparticles synthesized by sol–gel method causes efficient photo response activity provided compared to co-precipitation method. The corresponding photocatalytic property of prepared samples with Methylene blue dye under illumination of UV and visible light at room temperature clearly showed that the sample prepared using sol–gel had remarkable efficiency when compared to that of the samples by co-precipitation method.