Oriented ZnO Coating by Atmospheric Solution Precursor Plasma Spraying: In-Flight Physico-Chemical phenomena

Produktinformationen

PhD student Mathieu Tartarin, mathieu.tartarin@unilim.fr; Associate Professor Laurène Youssef, laurene.youssef@unilim.fr; Associate Professor Simon Goutier, simon.goutier@unilim.fr; CNRS Senior Research Vincent Rat, vincent.rat@unilim.fr; Professor Alan Kéromnès, alan.keromnes@unilim.fr; Professor Pascal Andre, pascal.andre@uca.fr; 

https://doi.org/10.53192/ITSC2026599

The current socio-economic climate necessitates the advancement of sustainable water disinfection techniques. To meet this demand, ZnO metal oxide is holding great promise owing to its photocatalytic properties [1]. However, optimizing these properties requires a large specific surface area, as well as careful control of crystal morphology and defects [2]. The synthesis of ZnO in nanoparticle form has therefore been highly developed to respond to this problematic. However, recent studies show that at this scale these materials are neurotoxic and carcinogenic [3,4]. As an alternative, we propose to produce nanostructured coatings by solution precursor plasma spraying (SPPS), which can produce complex nanostructures [5]. In our study, we obtained nanostructured, mono-oriented ZnO coatings at atmospheric pressure deposited on single crystal substrate. We explored the physico-chemical in-flight phenomena by means of optical emission spectroscopy, shadowgraphy and in-flight collection in order to characterize the thermokinetic treatment and understand the coating growth mechanisms driven by our single crystal substrates. This study seems interesting for the potential development of the plasma spraying sector in the field of active coatings such as photocatalysis or electronics.

Reference
[1]     M. Samadi, M. Zirak, A. Naseri, E. Khorashadizade, A. Z. Moshfegh, Thin Solid Films 2016, 605, 2.
[2]     E.-S. Jang, J. Won, S.-J. Hwang, J.-H. Choy, Adv. Mater. 2006, 18, 3309.
[3]     N. Fernández-Bertólez, A. Alba-González, A. Touzani, L. Ramos-Pan, J. Méndez, A. T. Reis, A. Quelle-Regaldie, L. Sánchez, M. Folgueira, B. Laffon, V. Valdiglesias, Chemosphere 2024, 363, 142993.
[4]     Q. Manzoor, A. Sajid, Z. Ali, A. Nazir, A. Sajid, F. Imtiaz, S. Iqbal, U. Younas, H. Arif, M. Iqbal, Desalination Water Treat. 2024, 317, 100025.
[5]     Z. Yu, H. Moussa, M. Liu, R. Schneider, M. Moliere, H. Liao, Ceram. Int. 2018, 44, 2085.

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Erscheinungsdatum

März 2026

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