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Maevskaya, M.V.; Rudakova, A.V.; Emeline, A.V.; Bahnemann, D.W.: Effect of Cu2O Substrate on Photoinduced Hydrophilicity of TiO2 and ZnO Nanocoatings. In: Nanomaterials 11 (2021), Nr. 6, 1526. DOI: https://doi.org/10.3390/nano11061526
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Sum total of downloads: 25
| Abstract: | |
The effect of a Cu2 O substrate on the photoinduced alteration of the hydrophilicity of TiO2 and ZnO surfaces was studied. It was demonstrated that the formation of heterostructures Cu2 O/TiO2 and Cu2 O/ZnO strongly changed the direction of the photoinduced alteration of surface hydrophilicity: while both TiO2 and ZnO demonstrate surface transition to superhydrophilic state under UV irradiation and no significant alteration of the surface hydrophilicity under visible light irradiation, the formation of Cu2 O/TiO2 and Cu2 O/ZnO heterostructures resulted in photoinduced decay of the surface hydrophilicity caused by both UV and visible light irradiation. All observed photoinduced changes of the surface hydrophilicity were compared and analyzed in terms of pho-toinduced alteration of the surface free energy and its polar and dispersive components. Alteration of the photoinduced hydrophilic behavior of TiO2 and ZnO surfaces caused by formation of the corresponding heterostructures with Cu2 O are explained within the mechanism of electron transfer and increasing of the electron concentration on the TiO2 and ZnO surfaces. | |
| License of this version: | CC BY 4.0 Unported |
| Document Type: | Article |
| Publishing status: | publishedVersion |
| Issue Date: | 2021 |
| Appears in Collections: | Naturwissenschaftliche Fakultät |
distribution of downloads over the selected time period:
downloads by country:
| pos. | country | downloads | ||
|---|---|---|---|---|
| total | perc. | |||
| 1 |  |
United States | 8 | 32.00% |
| 2 |  |
Germany | 7 | 28.00% |
| 3 |  |
United Kingdom | 2 | 8.00% |
| 4 |  |
No geo information available | 1 | 4.00% |
| 5 |  |
Ukraine | 1 | 4.00% |
| 6 |  |
Russian Federation | 1 | 4.00% |
| 7 |  |
Netherlands | 1 | 4.00% |
| 8 |  |
Mexico | 1 | 4.00% |
| 9 |  |
Canada | 1 | 4.00% |
| 10 |  |
Australia | 1 | 4.00% |
| other countries | 1 | 4.00% | ||
Further download figures and rankings:
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