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Bimetallic Pt-IrOx/g-C3N4 Photocatalysts for the Highly Efficient Overall Water Splitting under Visible Light Научная публикация

Журнал Catalysts
ISSN: 2073-4344
Вых. Данные Год: 2024, Том: 14, Номер: 4, Номер статьи : 225, Страниц : 17 DOI: 10.3390/catal14040225
Ключевые слова g-C3N4; photocatalytic water splitting; hydrogen peroxide; visible light
Авторы Sidorenko Nikolay D. 1 , Topchiyan Polina A. 2 , Saraev Andrey A. 1 , Gerasimov Evgeny Yu. 1 , Zhurenok Angelina V. 1 , Vasilchenko Danila B. 2 , Kozlova Ekaterina A. 1
Организации
1 Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
2 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia

Информация о финансировании (1)

1 Российский научный фонд 21-13-00314

Реферат: Two series of bimetallic photocatalysts (0.5% Pt/0.01–0.5% IrOx/g-C3N4 and 0.1% Pt/0.01–0.1% IrOx/g-C3N4) were synthesized by the thermolysis of melamine cyanurate and a successive deposition of platinum and iridium labile complexes (Me4N)2[Pt2(μ-OH)2(NO3)8] and fac-[Ir(H2O)3(NO2)3. The synthesized photocatalysts were studied by a set of physicochemical analysis techniques. Platinum exists in two states, with up to 60% in metallic form and the rest in the Pt2+ state, while iridium is primarily oxidized to the Ir3+ state, which was determined by X-ray photoelectron spectroscopy (XPS). The specific surface area (SBET), which is determined by low-temperature nitrogen adsorption, ranges from 80 to 100 m2 g−1 and the band gap energy (Eg) value is in the range of 2.75–2.80 eV as found by diffuse reflectance spectroscopy (DRS). The activity of the photocatalysts was tested in the photocatalytic production of hydrogen from ultrapure water under visible light (λ = 400 nm). It was found that the splitting of water occurs with the formation of the stochiometric amount of H2O2 as an oxidation product. Two photocatalysts 0.5% Pt/0.01% IrOx/g-C3N4 and 0.1% Pt/0.01% IrOx/g-C3N4 showed the highest activity at 100 μmol h−1 gcat−1, which is among the highest in H2 production published for such systems.
Библиографическая ссылка: Sidorenko N.D. , Topchiyan P.A. , Saraev A.A. , Gerasimov E.Y. , Zhurenok A.V. , Vasilchenko D.B. , Kozlova E.A.
Bimetallic Pt-IrOx/g-C3N4 Photocatalysts for the Highly Efficient Overall Water Splitting under Visible Light
Catalysts. 2024. V.14. N4. 225 :1-17. DOI: 10.3390/catal14040225 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 26 февр. 2024 г.
Принята к публикации: 26 мар. 2024 г.
Опубликована online: 28 мар. 2024 г.
Опубликована в печати: 1 апр. 2024 г.
Идентификаторы БД:
Web of science: WOS:001211415000001
Scopus: 2-s2.0-85191239244
РИНЦ: 66569482
Chemical Abstracts: 2024:961866
OpenAlex: W4393278803
Цитирование в БД:
БД Цитирований
OpenAlex 2
Scopus 2
Web of science 1
РИНЦ 2
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