| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Structural Comparative Study of Zirconium-Zinc Oxide Thin Films on Ceramic and Glass Substrates |
| Author(s) |
Dikra Bouras, Mamoun Fellah, Regis Barille, Madiha Zerouali, Nawel Hambli, Merah Neçar |
| On-Site Speaker (Planned) |
Mamoun Fellah |
| Abstract Scope |
Semiconductor nanostructures have significantly advanced water waste photolysis and hydrogen production through water decomposition. Ceramic materials in thin layers are crucial for protection, gas sensing, and photovoltaics, with thin films exhibiting distinct physicochemical properties compared to bulk materials. The study of nanostructured materials' physical properties is of great interest to both researchers and industries.This study investigates the influence of substrate type on the structural, morphological, optical, and photocatalytic properties of zirconium-doped zinc oxide thin layers. Samples were prepared on porous ceramic and glass substrates under identical conditions, including layer count and doping ratio. XRD analysis revealed a polycrystalline wurtzite structure in all samples, with grain sizes ranging from 25-43 nm for ceramic and 19-32 nm for glass substrates. UV-visible absorbance data showed that all Zr-doped ZnO films absorb visible light around 410 nm, with a blue shift observed as zirconium content increased up to 5 wt%. The band gap widened to 2.93 eV for ceramic substrates. SEM analysis demonstrated that doping significantly affected ZnO sample morphology.Photocatalytic activities, assessed using orange II degradation, showed that zirconium doping substantially improved performance for samples on ceramic substrates compared to those on glass. The photolysis mechanism was explored using hole/radical scavengers, revealing that Zr-ZnO networks enhance hydroxyl ion adsorption on the surface. This acts as a trap site, reducing hole/electron pair recombination and thus increasing activity and photodegradation efficiency. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Biomaterials, Thin Films and Interfaces |