Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films
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 com...
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| Format: | Article |
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Nature Portfolio
2022-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-17256-2 |
| _version_ | 1811321017258213376 |
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| author | Fabiana M. Pennisi Anna L. Pellegrino Nadia Licciardello Claudia Mezzalira Massimo Sgarzi Adolfo Speghini Graziella Malandrino Gianaurelio Cuniberti |
| author_facet | Fabiana M. Pennisi Anna L. Pellegrino Nadia Licciardello Claudia Mezzalira Massimo Sgarzi Adolfo Speghini Graziella Malandrino Gianaurelio Cuniberti |
| author_sort | Fabiana M. Pennisi |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T13:09:35Z |
| format | Article |
| id | doaj.art-70f5a1c9eca843e09438160628193d38 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T13:09:35Z |
| publishDate | 2022-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-70f5a1c9eca843e09438160628193d382022-12-22T02:45:39ZengNature PortfolioScientific Reports2045-23222022-08-0112111110.1038/s41598-022-17256-2Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite filmsFabiana M. Pennisi0Anna L. Pellegrino1Nadia Licciardello2Claudia Mezzalira3Massimo Sgarzi4Adolfo Speghini5Graziella Malandrino6Gianaurelio Cuniberti7Dipartimento di Scienze Chimiche, Università di Catania, and INSTM UdR CataniaDipartimento di Scienze Chimiche, Università di Catania, and INSTM UdR CataniaInstitute for Materials Science, Max Bergmann Centre of Biomaterials and Dresden Center for Nanoanalysis, TU DresdenNanomaterials Research Group, Dipartimento di Biotecnologie, Università di Verona and INSTM, UdR VeronaInstitute for Materials Science, Max Bergmann Centre of Biomaterials and Dresden Center for Nanoanalysis, TU DresdenNanomaterials Research Group, Dipartimento di Biotecnologie, Università di Verona and INSTM, UdR VeronaDipartimento di Scienze Chimiche, Università di Catania, and INSTM UdR CataniaInstitute for Materials Science, Max Bergmann Centre of Biomaterials and Dresden Center for Nanoanalysis, TU DresdenAbstract 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.https://doi.org/10.1038/s41598-022-17256-2 |
| spellingShingle | Fabiana M. Pennisi Anna L. Pellegrino Nadia Licciardello Claudia Mezzalira Massimo Sgarzi Adolfo Speghini Graziella Malandrino Gianaurelio Cuniberti Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films Scientific Reports |
| title | Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films |
| title_full | Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films |
| title_fullStr | Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films |
| title_full_unstemmed | Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films |
| title_short | Synthesis, characterization and photocatalytic properties of nanostructured lanthanide doped β-NaYF4/TiO2 composite films |
| title_sort | synthesis characterization and photocatalytic properties of nanostructured lanthanide doped β nayf4 tio2 composite films |
| url | https://doi.org/10.1038/s41598-022-17256-2 |
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