Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films

Pennisi FM, Pellegrino AL, Licciardello N, Mezzalira C, Sgarzi M, Speghini A, Malandrino G, Cuniberti G (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Scientific Reports Nature Publishing Group: Open Access Journals - Option B

Book Volume: 12

Article Number: 13748

Journal Issue: 1

DOI: 10.1038/s41598-022-17256-2

Abstract

The photocatalytic approach is known to be one of the most promising advanced oxidation processes for the tertiary treatment of polluted water. In this paper, β-NaYF4/TiO2 composite films have been synthetized through a novel sol–gel/spin-coating approach using a mixture of β-diketonate complexes of Na and Y, and Yb3+, Tm3+, Gd3+, Eu3+ as doping ions, together with the TiO2 P25 nanoparticles. The herein pioneering approach represents an easy, straightforward and industrially appealing method for the fabrication of doped β-NaYF4/TiO2 composites. The effect of the doped β-NaYF4 phase on the photocatalytic activity of TiO2 for the degradation of methylene blue (MB) has been deeply investigated. In particular, the upconverting TiO2/β-NaYF4: 20%Yb, 2% Gd, x% Tm (x = 0.5 and 1%) and the downshifting TiO2/β-NaYF4: 10% Eu composite films have been tested on MB degradation both under UV and visible light irradiation. An improvement up to 42.4% in the degradation of MB has been observed for the TiO2/β-NaYF4: 10% Eu system after 240 min of UV irradiation.

Involved external institutions

Università degli Studi di Catania IT Italy (IT) Technische Universität Dresden DE Germany (DE) University of Verona / Università degli Studi di Verona IT Italy (IT)

How to cite

APA:

Pennisi, F.M., Pellegrino, A.L., Licciardello, N., Mezzalira, C., Sgarzi, M., Speghini, A.,... Cuniberti, G. (2022). Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-17256-2

MLA:

Pennisi, Fabiana M., et al. "Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films." Scientific Reports 12.1 (2022).

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