Abstract
In this report, spherical nanoparticles/2D nanosheets based MnS2/TiO2 nanocomposites were prepared in different weight compositions which were further employed to investigate photocatalytic degradation of hydrogen production under solar light irradiation. MnS2/TiO2 nanocomposites were prepared by in situ addition of exfoliated MnS2 (nanoparticles) in different weight ratios of 5, 10 and 15% in TiO2 sol. Surface morphology, phase analysis, optical, textural properties and elemental composition were studied using Scanning electron microscope (SEM), Transmission electron microspore (TEM), X-ray diffraction (XRD), UV–Vis spectroscopy, Photoluminescence spectroscopy, N2 adsorption–desorption analysis and X-ray photoelectron spectra (XPS) analysis. When the MnS2 loading was 15.0%, the MnS2/TiO2 photocatalyst reached the maximum rate for photocatalytic H2 evolution at 3150.7 μmol/h/g, which was 4.5 times higher than that of TiO2 (711.81 μmol/h/g). It is believed that the boosting photocatalytic performance of heterostructure could be ascribed to the synergetic effect between the MnS2 and TiO2, which accelerated the separation and migration efficiency of charge carries as well as enhanced the light–harvest efficiency.
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Priya, B.A., Sivakumar, T. & Venkateswari, P. Controlled loading of MnS2 on porous TiO2 nanosheets for enhanced photocatalytic hydrogen evolution. J Mater Sci: Mater Electron 33, 6646–6656 (2022). https://doi.org/10.1007/s10854-022-07839-0
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DOI: https://doi.org/10.1007/s10854-022-07839-0