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Constructing g-C3N4/Cd1-xZnxS-Based Heterostructures for Efficient Hydrogen Production under Visible Light Научная публикация

Журнал Catalysts
ISSN: 2073-4344
Вых. Данные Год: 2021, Том: 11, Номер: 11, Номер статьи : 1340, Страниц : 20 DOI: 10.3390/catal11111340
Ключевые слова solar energy; photocatalytic hydrogen evolution; visible light; g-C3N4
Авторы Zhurenok Angelina V. 1 , Markovskaya Dina V. 1 , Gerasimov Evgeny Y. 1 , Vokhmintsev Alexander S. 2 , Weinstein Ilya A. 2,3 , Prosvirin Igor P. 1 , Cherepanova Svetlana V. 1 , Bukhtiyarov Andrey V. 1 , Kozlova Ekaterina A. 1
Организации
1 Federal Research Center Boreskov Institute of Catalysis, Pr. Ak. Lavrentieva, 5, 630090 Novosibirsk, Russia
2 NANOTECH Centre, Ural Federal University, St. Mira, 19, 620002 Ekaterinburg, Russia
3 Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, 620016 Ekaterinburg, Russia

Информация о финансировании (3)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0011
2 Российский фонд фундаментальных исследований 20-33-70086
3 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) FEUZ-2020-0059

Реферат: Two types of photocatalysts, 1%Pt/Cd1−xZnxS/g-C3N4 (x = 0.2–0.3) and Cd1−xZnxS/1%Pt/g-C3N4 (x = 0.2–0.3), were synthesized by varying the deposition order of platinum, and a solid solution of cadmium and zinc sulfides onto the surface of g-C3N4. The characterization of photocatalysts showed that, for 1%Pt/Cd1−xZnxS/g-C3N4, small platinum particles were deposited onto a solid solution of cadmium and zinc sulfides; in the case of Cd1−xZnxS/1%Pt/g-C3N4, enlarged platinum clusters were located on the surface of graphitic carbon nitride. Based on the structure of the photocatalysts, we assumed that, in the first case, type II heterojunctions and, in the latter case, S-scheme heterojunctions were realized. The activity of the synthesized samples was tested in hydrogen evolution from triethanolamine (TEOA) basic solution under visible light (λ = 450 nm). A remarkable increase in hydrogen evolution rate compared to single-phase platinized 1%Pt/Cd1−xZnxS photocatalysts was observed only in the case of ternary photocatalysts with platinum located on the g-C3N4 surface, Cd1−xZnxS/1%Pt/g-C3N4. Thus, we proved using kinetic experiments and characterization techniques that, for composite photocatalysts based on Cd1−xZnxS and g-C3N4, the formation of the S-scheme mechanism is more favorable than that for type II heterojunction. The highest activity, 2.5 mmol H2 g−1 h−1, with an apparent quantum efficiency equal to 6.0% at a wavelength of 450 nm was achieved by sample 20% Cd0.8Zn0.2S/1% Pt/g-C3N4.
Библиографическая ссылка: Zhurenok A.V. , Markovskaya D.V. , Gerasimov E.Y. , Vokhmintsev A.S. , Weinstein I.A. , Prosvirin I.P. , Cherepanova S.V. , Bukhtiyarov A.V. , Kozlova E.A.
Constructing g-C3N4/Cd1-xZnxS-Based Heterostructures for Efficient Hydrogen Production under Visible Light
Catalysts. 2021. V.11. N11. 1340 :1-20. DOI: 10.3390/catal11111340 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 17 окт. 2021 г.
Принята к публикации: 4 нояб. 2021 г.
Опубликована в печати: 6 нояб. 2021 г.
Опубликована online: 6 нояб. 2021 г.
Идентификаторы БД:
Web of science: WOS:000807171700001
Scopus: 2-s2.0-85118491638
РИНЦ: 47522705
Chemical Abstracts: 2021:2643198
OpenAlex: W3213220340
Цитирование в БД:
БД Цитирований
Scopus 12
РИНЦ 10
Web of science 10
OpenAlex 14
Альметрики: