Abstract
MoS2 basically layered van der Walls material which have strong bonding between intralayer (Mo and S) and the weak bonding between interlayer, i.e. neighbouring planes of sulphur atoms, and therefore, these materials can easily exfoliate into few or monolayer. In this work, the nanosheets of MoS2 are exfoliated using liquid exfoliation techniques followed by ultrasonication. Further, the exfoliated MoS2 nanosheets are used to form the composite of MoS2 and zinc oxide (ZnO). The formation of composite material is confirmed from the XRD. The band gap of ZnO nanoparticles is 3.2 eV. The ZnO/MoS2 nanocomposite material shows less band gap (3.0 eV). The low band gap of composite material increases the absorption of light from ultraviolet to visible regime. The enhancement in light absorbance of composite material reveals that ZnO/MoS2 has potential for highly active photocatalyst.
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Acknowledgements
This work is financially supported by Department of Science and Technology through Inspire Faculty award (DST/INSPIRE/04/2016/001600). SY gratefully acknowledge the instrument facilities available in Physics Department, University of Allahabad, Prayagraj.
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Yadav, S. (2022). Enhancement in Optical Absorbance of ZnO Nanoparticles by Introducing MoS2 Nanosheets. In: Pandey, K.L., Priya, P.K., Yadav, U.K., Khandai, P.K. (eds) Proceedings of the National Workshop on Recent Advances in Condensed Matter and High Energy Physics. Springer Proceedings in Physics, vol 278. Springer, Singapore. https://doi.org/10.1007/978-981-19-2592-4_9
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