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Effect of ultrasonic treatment on the thermal oxidation of detonation nanodiamonds

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Abstract

In the present article, we showed the effect of ultrasonic treatment on the thermal oxidation of detonation nanodiamonds (DNDs) by considering the kinetic aspect of their thermal stability in the air, in the framework of the classical Arrhenius approach. Nanostructures and surface chemistry of the pristine, ultrasonicated, and oxidized DNDs were studied by miscellaneous physical techniques to clarify the origin of the effect. Ultrasonic treating decreases the heterogeneity of aggregated nanoparticles and removes admixtures and non-diamond carbon from the surface interface of nanodiamond grains. After thermal oxidation that followed ultrasonication treatment, the size-reduction of nanodiamond crystals caused the annihilation of nitrogen-vacancy centers and led to photoluminescence quenching. Because the number of surface defects reacting with air oxygen decreases after the ultrasonic treatment, the thermal stability of DND nanopowders towards oxidative treatment shows an increase.

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Acknowledgments

This work is funded by Grant of the Ministry of Education and Science of Ukraine [0111U006260], [0114U003554], [0116U002558], and [0119U100167]. V.V.L. thanks the International Visegrad Fund for the scholarship, ID number [51810574] in 2018–2019.

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Contributions

ANP, OBL, and ANZ treated DNDs and carried out their granulometric and nanoparticle size analyses. GGT studied isothermal kinetics of oxidation. AGD, LMG, and VED performed the DNDs’ characterization with XRD, SEM, EDX, TGA, TPD MS, and TEM methods. RPL, RTM, and LMG carried out the spectral studies. VVL analyzed the surface chemistry by XPS and wrote the original draft of the manuscript. VED, RTM, VVL, and GGT contributed to the discussion of the obtained results. VVL, VED, and RTM performed the final writing, reviewing, and editing of the manuscript.

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Correspondence to Vladyslav V. Lisnyak.

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Tsapyuk, G.G., Diyuk, V.E., Mariychuk, R. et al. Effect of ultrasonic treatment on the thermal oxidation of detonation nanodiamonds. Appl Nanosci 10, 4991–5001 (2020). https://doi.org/10.1007/s13204-020-01277-2

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  • DOI: https://doi.org/10.1007/s13204-020-01277-2

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