Activation of g-C3N4 by Oxidative Treatment for Enhanced Photocatalytic H2 Evolution Full article
| Journal |
Applied Surface Science
ISSN: 0169-4332 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2025, Volume: 698, Article number : 163074, Pages count : 12 DOI: 10.1016/j.apsusc.2025.163074 | ||||
| Tags | Graphitic carbon nitride; Hydrothermal treatment; Hydrogen peroxide; Hydrogen; Biomass conversion; Photocatalysis; Photocatalyst; Solar light | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0042 |
| 2 | Russian Science Foundation | 23-73-01161 |
Abstract:
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.
Cite:
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 publication_identifier_short.sciact_skif_identifier_type
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 publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Feb 1, 2025 |
| Accepted: | Mar 23, 2025 |
| Published online: | Mar 24, 2025 |
| Published print: | Jul 30, 2025 |
Identifiers:
| Web of science: | WOS:001459185200001 |
| Scopus: | 2-s2.0-105001019174 |
| OpenAlex: | W4408852790 |
| publication_identifier.sciact_skif_identifier_type: | 3814 |
Citing:
Пока нет цитирований