Copper-Modified Titania-Based Photocatalysts for the Efficient Hydrogen Production under UV and Visible Light from Aqueous Solutions of Glycerol Научная публикация
| Журнал |
Nanomaterials
, E-ISSN: 2079-4991 |
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| Вых. Данные | Год: 2022, Том: 12, Номер: 18, Номер статьи : 3106, Страниц : 16 DOI: 10.3390/nano12183106 | ||||
| Ключевые слова | photocatalysis; hydrogen evolution; titanium dioxide; anatase; rutile | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 19-73-20020 |
Реферат:
In this study, we have proposed titania-based photocatalysts modified with copper compounds for hydrogen evolution. Thermal pre-treatment of commercial TiO2 Degussa P25 (DTiO2) and Hombifine N (HTiO2) in the range from 600 to 800 °C was carried out followed by the deposition of copper oxides (1–10 wt. % of Cu). The morphology and chemical state of synthesized photocatalysts were studied using X-ray diffraction, UV–Vis diffuse reflectance spectroscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and XANES/EXAFS X-ray absorption spectroscopy. Photocatalytic activity was tested in the hydrogen evolution from aqueous solutions of glycerol under ultraviolet (λ = 381 nm) and visible (λ = 427 nm) light. The photocatalysts 2% CuOx/DTiO2 T750 and 5% CuOx/DTiO2 T700 showed the highest activity under UV irradiation (λ = 380 nm), with the rate of H2 evolution at the level of 2.5 mmol (H2) g−1 h−1. Under the visible light irradiation (λ = 427 nm), the highest activity of 0.6 mmol (H2) g−1 h−1 was achieved with the 5% CuOx/DTiO2 T700 photocatalyst. The activity of these photocatalysts is 50% higher than that of the platinized 1% Pt/DTiO2 sample. Thus, it was shown for the first time that a simple heat treatment of a commercial titanium dioxide in combination with a deposition of non-noble metal particles led to a significant increase in the activity of photocatalysts and made it possible to obtain materials that were active in hydrogen production under visible light irradiation
Библиографическая ссылка:
Kurenkova A.Y.
, Yakovleva A.Y.
, Saraev A.A.
, Gerasimov E.Y.
, Kozlova E.A.
, Kaichev V.V.
Copper-Modified Titania-Based Photocatalysts for the Efficient Hydrogen Production under UV and Visible Light from Aqueous Solutions of Glycerol
Nanomaterials. 2022. V.12. N18. 3106 :1-16. DOI: 10.3390/nano12183106 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Copper-Modified Titania-Based Photocatalysts for the Efficient Hydrogen Production under UV and Visible Light from Aqueous Solutions of Glycerol
Nanomaterials. 2022. V.12. N18. 3106 :1-16. DOI: 10.3390/nano12183106 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Даты:
| Поступила в редакцию: | 9 авг. 2022 г. |
| Принята к публикации: | 3 сент. 2022 г. |
| Опубликована в печати: | 7 сент. 2022 г. |
Идентификаторы БД:
| Web of science: | WOS:000856956800001 |
| Scopus: | 2-s2.0-85138620489 |
| РИНЦ: | 50357765 |
| Chemical Abstracts: | 2022:2513648 |
| Chemical Abstracts (print): | 180:226390 |
| PMID (PubMed): | 36144894 |
| OpenAlex: | W4296116186 |