| Summary: | The present manuscript discusses an in-depth explanation of the synthesis and characterization of nickel sulphide (NiS2) and nickel sulphate [NiSO4(H2O)6] nanocomposites. The phase analysis was performed through x-ray diffraction (XRD), revealing the presence of NiS2 and NiSO4(H2O)6 nanocomposites, along with the presence of deuterium. The synthesized material exhibited absorbance in the visible region, with an optimized band gap of 1.0 eV. The presence of carbon spheres was confirmed through morphological analysis performed through field emission scanning electron microscopy (FESEM), depicting the growth of NiS2 on the surface of carbon spheres and the presence of nanosheets of NiSO4(H2O)6. These techniques provide a detailed explanation of the crystallite size for the nanocomposites, their structural properties and optical properties. The material showed a narrow band gap making it highly suitable for solar cell applications.
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