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Article

MoS2@ZnO Nanoheterostructures Prepared by Electrospark Erosion for Photocatalytic Applications

1
Kizhner Research Center, School of Advanced Manufacturing Technologies, Tomsk Polytechnic University, Lenin avenue, 30, 634050 Tomsk, Russia
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Department of Natural Sciences, Manchester Metropolitan University, Manchester M15 6GD, UK
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Division of Materials Science, School of Advanced Manufacturing Technologies, Tomsk Polytechnic University, Lenin avenue, 30, 634050 Tomsk, Russia
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R&D Laboratory for Clean Water, School of Advanced Manufacturing Technologies, Tomsk Polytechnic University, Lenin avenue, 30, 634050 Tomsk, Russia
*
Author to whom correspondence should be addressed.
Nanomaterials 2021, 11(1), 157; https://doi.org/10.3390/nano11010157
Received: 15 December 2020 / Revised: 5 January 2021 / Accepted: 7 January 2021 / Published: 9 January 2021
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
MoS2@ZnO nanoheterostructures were synthesized by electrospark erosion of zinc granules in a hydrogen peroxide solution and simultaneous addition of MoS2 nanostructured powder into the reaction zone. The morphology, size of the crystallites, as well as elemental and phase composition of the prepared structures, were examined using transmission electron microscopy and X-ray diffraction analysis. It was found that the synthesized products represent heterostructures containing MoS2 nanoparticles formed on ZnO nanoparticles. Raman spectroscopy and photoluminescence analysis were also used for characterization of the prepared heterostructures. The obtained MoS2@ZnO nanostructures revealed an intense broad emission band ranging from 425 to 625 nm for samples with different fractions of MoS2. Photocatalytic measurements showed that the maximal hydrogen evolution rate of the prepared nanoheterostructures was about 906.6 μmol·g−1·h−1. The potential of their application in photocatalytic water splitting was also estimated. View Full-Text
Keywords: electrospark erosion; heterostructures; photocatalytic water splitting; MoS2@ZnO; electrical explosion of wires; self-propagating high-temperature synthesis (SHS) electrospark erosion; heterostructures; photocatalytic water splitting; MoS2@ZnO; electrical explosion of wires; self-propagating high-temperature synthesis (SHS)
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MDPI and ACS Style

An, V.; Potgieter, H.; Usoltseva, N.; Valiev, D.; Stepanov, S.; Pustovalov, A.; Baryshnikov, A.; Titov, M.; Dolinina, A. MoS2@ZnO Nanoheterostructures Prepared by Electrospark Erosion for Photocatalytic Applications. Nanomaterials 2021, 11, 157. https://doi.org/10.3390/nano11010157

AMA Style

An V, Potgieter H, Usoltseva N, Valiev D, Stepanov S, Pustovalov A, Baryshnikov A, Titov M, Dolinina A. MoS2@ZnO Nanoheterostructures Prepared by Electrospark Erosion for Photocatalytic Applications. Nanomaterials. 2021; 11(1):157. https://doi.org/10.3390/nano11010157

Chicago/Turabian Style

An, Vladimir, Herman Potgieter, Natalia Usoltseva, Damir Valiev, Sergei Stepanov, Alexey Pustovalov, Arsenii Baryshnikov, Maksim Titov, and Alesya Dolinina. 2021. "MoS2@ZnO Nanoheterostructures Prepared by Electrospark Erosion for Photocatalytic Applications" Nanomaterials 11, no. 1: 157. https://doi.org/10.3390/nano11010157

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