Silver-Doped MoO3 Thin Films for Better Photocatalysis
Author Information
Author(s): Kamoun Olfa, Akkari Anis, Alhalaili Badriyah, Vidu Ruxandra, Turki-Kamoun Najoua
Primary Institution: Laboratoire de Physique de la Matière Condensée, Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisia
Hypothesis
Can silver doping enhance the photocatalytic performance of molybdenum oxide thin films?
Conclusion
Silver doping optimizes the structural and electronic properties of MoO3 thin films, leading to significantly improved photocatalytic activity.
Supporting Evidence
- XRD results confirmed an orthorhombic phase with a (040) preferential orientation for all samples.
- Optimal crystallinity was observed with 2% Ag doping, yielding an 84 nm crystallite size.
- Band gap energy narrowed from 3.07 eV (undoped) to 2.94 eV (2% Ag-doped).
- Photocatalytic performance showed significant improvement with silver doping, peaking at 4% Ag.
Takeaway
This study shows that adding silver to molybdenum oxide makes it better at breaking down dyes in water when exposed to light.
Methodology
The study used spray pyrolysis to create MoO3 thin films with varying silver concentrations and analyzed their structural, optical, and photocatalytic properties.
Digital Object Identifier (DOI)
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