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11 April 2024 Nanohybrid photocatalyst layers obtained by MAPLE technique for microorganisms decomposition under solar light irradiation
Eniko Gyorgy, Raluca Ivan, Iuliana Urzica Iordache, Catalin Negrila, Angel Perez del Pino
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Proceedings Volume PC12939, High-Power Laser Ablation VIII; PC129390J (2024) https://doi.org/10.1117/12.3012316
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States
Abstract
Nanohybrid surface layers consisting of semiconductor transmission metal oxide nanoparticles and carbon based nanomaterials were prepared by matrix assisted pulsed laser evaporation (MAPLE). The photocatalytic decomposition efficiency of the nanocomposite layers was studied against microorganisms, yeast, bacteria, and virus cells constituents under UV, visible, and solar light irradiation. Transition metal oxide semiconductor materials are widely investigated photocatalysts, being non-toxic, eco-friendly, and cost effective. However, their use in practical applications is constrained by their relatively wide band gap, limiting the absorption range to the UV spectrum of the solar radiation, and high recombination rate of photo-induced electron-hole pairs. Our purpose in this study was to overcome these inconveniencies. The enhanced photocatalytic efficiency of the nanohybrid layers as compared to the reference single component layers was attributed to the synergistic effects between the constituent nanomaterials.
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Eniko Gyorgy, Raluca Ivan, Iuliana Urzica Iordache, Catalin Negrila, and Angel Perez del Pino "Nanohybrid photocatalyst layers obtained by MAPLE technique for microorganisms decomposition under solar light irradiation", Proc. SPIE PC12939, High-Power Laser Ablation VIII, PC129390J (11 April 2024); https://doi.org/10.1117/12.3012316
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KEYWORDS
Oxides
Microorganisms
Transition metals
Laser irradiation
Solar processes
Semiconductor materials
Semiconductors
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