Nano TiO2 and Molybdenum/Tungsten Iodide Octahedral Clusters: Synergism in UV/Visible-Light Driven Degradation of Organic Pollutants Научная публикация
| Журнал |
Nanomaterials
, E-ISSN: 2079-4991 |
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| Вых. Данные | Год: 2022, Том: 12, Номер: 23, Номер статьи : 4282, Страниц : 16 DOI: 10.3390/nano12234282 | ||||
| Ключевые слова | TiO2; nanoparticles; octahedral iodide clusters; molybdenum; tungsten; rhodamine B; photodegradation; S-scheme heterojunction | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | FWUZ-2021-0001 (121031700321-3) |
| 2 | Российский научный фонд | 19-73-20109 (АААА-А19-119031890078-5) |
Реферат:
Emissions of various organic pollutants in the environment becomes a more and more acute problem in the modern world as they can lead to an ecological disaster in foreseeable future. The current situation forces scientists to develop numerous methods for the treatment of polluted water. Among these methods, advanced photocatalytic oxidation is a promising approach for removing organic pollutants from wastewater. In this work, one of the most common photocatalysts—titanium dioxide—was obtained by direct aqueous hydrolysis of titanium (IV) isopropoxide and impregnated with aqueous solutions of octahedral cluster complexes [{M6I8}(DMSO)6](NO3)4 (M = Mo, W) to overcome visible light absorption issues and increase overall photocatalytic activity. XRPD analysis showed that the titania is formed as anatase-brookite mixed-phase nanoparticles and cluster impregnation does not affect the morphology of the particles. Complex deposition resulted in the expansion of the absorption up to ~500 nm and in the appearance of an additional cluster-related band gap value of 1.8 eV. Both types of materials showed high activity in the photocatalytic decomposition of RhB under UV- and sunlight irradiation with effective rate constants 4–5 times higher than those of pure TiO2. The stability of the catalysts is preserved for up to 5 cycles of photodegradation. Scavengers’ experiments revealed high impact of all of the active species in photocatalytic process indicating the formation of an S-scheme heterojunction photocatalyst.
Библиографическая ссылка:
Marchuk M.V.
, Asanov I.P.
, Panafidin M.A.
, Vorotnikov Y.A.
, Shestopalov M.A.
Nano TiO2 and Molybdenum/Tungsten Iodide Octahedral Clusters: Synergism in UV/Visible-Light Driven Degradation of Organic Pollutants
Nanomaterials. 2022. V.12. N23. 4282 :1-16. DOI: 10.3390/nano12234282 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Nano TiO2 and Molybdenum/Tungsten Iodide Octahedral Clusters: Synergism in UV/Visible-Light Driven Degradation of Organic Pollutants
Nanomaterials. 2022. V.12. N23. 4282 :1-16. DOI: 10.3390/nano12234282 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
| Поступила в редакцию: | 18 нояб. 2022 г. |
| Принята к публикации: | 30 нояб. 2022 г. |
| Опубликована в печати: | 1 дек. 2022 г. |
| Опубликована online: | 1 дек. 2022 г. |
Идентификаторы БД:
| Web of science: | WOS:000896493500001 |
| Scopus: | 2-s2.0-85143683197 |
| РИНЦ: | 50361369 |
| Chemical Abstracts: | 2022:3123448 |
| PMID (PubMed): | 36500904 |
| OpenAlex: | W4311106477 |