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Controlling Hydrophobic/Hydrophilic Properties of ZnO Microtetrapods Structures by Means of Thermal Treatment

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dc.contributor.author CIOBANU, Vladimir
dc.contributor.author URSAKI, Veaceslav V.
dc.contributor.author REIMERS, Armin
dc.contributor.author MIHAI, Geanina
dc.contributor.author ZALAMAI, Victor V.
dc.contributor.author MONAICO, Eduard V.
dc.contributor.author ADELUNG, Rainer
dc.contributor.author ENACHESCU, Marius
dc.contributor.author TIGINYANU, Ion M.
dc.date.accessioned 2023-11-06T10:20:30Z
dc.date.available 2023-11-06T10:20:30Z
dc.date.issued 2023
dc.identifier.citation CIOBANU, Vladimir, URSAKI, Veaceslav V., REIMERS, Armin et al. Controlling Hydrophobic/Hydrophilic Properties of ZnO Microtetrapods Structures by Means of Thermal Treatment. In: 6th International Conference on Nanotechnologies and Biomedical Engineering: proc. of ICNBME-2023, 20–23, 2023, Chisinau, vol. 1: Nanotechnologies and Nano-biomaterials for Applications in Medicine, 2023, p. 284-292. ISBN 978-3-031-42774-9. e-ISBN 978-3-031-42775-6. en_US
dc.identifier.isbn 978-3-031-42774-9
dc.identifier.isbn 978-3-031-42775-6
dc.identifier.uri https://doi.org/10.1007/978-3-031-42775-6_32
dc.identifier.uri http://repository.utm.md/handle/5014/24642
dc.description Acces full text - https://doi.org/10.1007/978-3-031-42775-6_32 en_US
dc.description.abstract We report on possibilities to convert, by means of thermal treatment, the wettability properties of networks consisting of ZnO microtetrapods from hydrophobic to super-hydrophilic. The ZnO microtetrapods were produced by flame transport synthesis. The ZnO powder containing the ZnO tetrapods were pressed in pellets with the density of 1 g cm−3 using a compression mold. The comparative study was performed on two sets of samples, and namely: the as-grown ZnO tetrapods pressed in pellets and the annealed pellets. The wettability conversion proved to be an irreversible process for a long period. As a result, the thermal treatment process not only increase the mechanical stability of the ZnO pellets but also essentially increase the hydrophilic behavior of ZnO tetrapods, which is a very important issue for further chemical or electrochemical functionalization. Apart from wettability characteristics investigated by Water Contact Angle (WCA) measurements, the structural and optical properties were investigated by X-ray diffraction (XRD) and photoluminescence (PL) techniques, respectively. The XRD patterns revealed the hexagonal wurtzite structure and a high structural quality of both as-grown samples and annealed networks of microtetrapods at 950 ℃. Their high quality was also confirmed by the presence of PL bands related to exciton recombination in the emission spectrum. The possible nature of other PL bands, especially green emission band attributed to specific recombination channels and their evolution with thermal treatment are discussed. en_US
dc.language.iso en en_US
dc.publisher Springer Nature Switzerland en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject zinc oxide microtetrapods en_US
dc.subject flame transport synthesis en_US
dc.subject scanning electron microscopy en_US
dc.subject photoluminescence en_US
dc.title Controlling Hydrophobic/Hydrophilic Properties of ZnO Microtetrapods Structures by Means of Thermal Treatment en_US
dc.type Article en_US


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  • 2023
    6th International Conference on Nanotechnologies and Biomedical Engineering, September 20–23, 2023, Chisinau, Moldova

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Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

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