Activation of g-C3N4 by Oxidative Treatment for Enhanced Photocatalytic H2 Evolution | Sciact - CRIS-система Института катализа

Activation of g-C3N4 by Oxidative Treatment for Enhanced Photocatalytic H2 Evolution Научная публикация

Журнал

Applied Surface Science
ISSN: 0169-4332

Вых. Данные

Год: 2025, Том: 698, Номер статьи : 163074, Страниц : 12 DOI: 10.1016/j.apsusc.2025.163074

Ключевые слова

Graphitic carbon nitride; Hydrothermal treatment; Hydrogen peroxide; Hydrogen; Biomass conversion; Photocatalysis; Photocatalyst; Solar light

Авторы

Kharina Sofiya ¹ , Kurenkova Anna ^1,2 , Aydakov Egor ² , Mishchenko Denis ² , Gerasimov Evgeny ¹ , Saraev Andrey ² , Zhurenok Angelina ¹ , Lomakina Viktoria ¹ , Kozlova Ekaterina ¹

Организации

1	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russian Federation
2	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, 630559 Koltsovo, Russian Federation

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUR-2024-0042
2	Российский научный фонд	23-73-01161

Graphitic carbon nitride g-C3N4 has attracted a scientific interest as a visible light active non-metallic photocatalyst for a H2 evolution. Recently, the techniques aimed at oxidizing g-C3N4 surface have been investigated in order to improve its photocatalytic properties. The present study is devoted to the modification of g-C3N4 via hydrothermal treatment in aqueous H2O2 solution. The treatment led to partial structural decomposition and functionalization of the g-C3N4 surface with −C=O and –COOH groups, thereby affecting the structural, textural, and electronic properties. The platinum deposited on the surface of the pretreated g-C3N4 was in a special configuration with metal particles surrounded by single atoms. The platinized g-C3N4 treated in H2O2 solution at 140 °C was shown to be active in H2 evolution from glucose aqueous solution with a reaction rate of 344 μmol H2·h−1·(gcat)−1 (λmax = 440 nm), while Pt/g-C3N4 without hydrothermal treatment demonstrated no activity. Moreover, the activity of platinized g-C3N4 after hydrothermal treatment was improved by a factor of 4.3 and 9.5 in ethanol and triethanolamine aqueous solutions, respectively. The study presents a novel simple avenue for the synthesis of g-C3N4-based photocatalyst for H2 generation from different substrates, including plant biomass components, thus expanding the scope of g-C3N4 applications.

Kharina S. , Kurenkova A. , Aydakov E. , Mishchenko D. , Gerasimov E. , Saraev A. , Zhurenok A. , Lomakina V. , Kozlova E.
Activation of g-C3N4 by Oxidative Treatment for Enhanced Photocatalytic H2 Evolution
Applied Surface Science. 2025. V.698. 163074 :1-12. DOI: 10.1016/j.apsusc.2025.163074 WOS Scopus OpenAlex СКИФ ID

Поступила в редакцию:	1 февр. 2025 г.
Принята к публикации:	23 мар. 2025 г.
Опубликована online:	24 мар. 2025 г.
Опубликована в печати:	30 июл. 2025 г.

Web of science:	WOS:001459185200001
Scopus:	2-s2.0-105001019174
OpenAlex:	W4408852790
СКИФ ID:	3814

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