Document Type : Regular Article
Authors
1
Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, 522510, A.P., India. Department of Physics, Government Polytechnic, Krosuru, Guntur, 522410, A.P., India
2
Department of Physics, P.V.P. Siddhartha Institute of Technology, Vijayawada, India
3
Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, 522510, A.P., India. Department of Physics, V.R. Siddhartha Engineering College, Vijayawada, India
4
Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, 522510, A.P., India
10.22036/pcr.2021.306239.1971
Abstract
ZnS-MoS2 Nanocomposite was synthesized by a cost-effective and eco-friendly hydrothermal approach to investigate the structural and optical properties of ZnS-MoS2 nanocomposite powder comparing with the pure ZnS and MoS2. The structural, morphological and optical absorption properties of prepared powder samples were characterized by Powder X-ray diffraction (XRD), Scanning electron microscopy (SEM), Diffusion reflectance spectrophotometer (DRS), FT-IR-Fourier transform infrared spectroscopy. Powder XRD results show both cubic phase and hexagonal phase structures of ZnS and MoS2. The average crystallite size lies between 20 nm to 25 nm for hydrothermally prepared nanocomposite. The dislocation density and lattice strain were also calculated. The surface morphology of the prepared nanocomposite shows spherical hexagonal flowers with agglomerations. With coupling of ZnS-MoS2, there is a slight variation in the energy band gap that slightly shifted from 3.61 to 3.57 eV and it is found to be red-shifted. The characteristic frequencies related to ZnS-MoS2 nanocomposite and other precursors related molecules are disclosed from FT-IR spectra.
Graphical Abstract
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