Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction Full article
| Journal |
Inorganic Chemistry Communications
ISSN: 1387-7003 |
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| Output data | Year: 2025, Volume: 173, Article number : 113863, Pages count : 10 DOI: 10.1016/j.inoche.2024.113863 | ||||||
| Tags | Photocatalyst; Photocatalysis; TiO2; g-C3N4; Copper cocatalyst; CO2 reduction | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 075-15-2022-263 |
Abstract:
CO2 utilization is an urgent task for sustainable development, and one of the promising approaches for CO2 conversion is photocatalysis. In this work, photocatalysts based on g-C3N4/TiO2 heterostructures and modified with copper were synthesized and studied in photocatalytic CO2 reduction under light irradiation (400 nm and simulated solar light). The photocatalysts were synthesized by a simple deposition method and characterized by a set of physicochemical methods. In-situ diffuse reflectance infrared Fourier transform spectroscopy was used to study processes over photocatalyst surface under light irradiation. The influence of the deposition order of components (CuOx and g-C3N4) to TiO2 on the structure and photocatalytic properties of samples was established. The highest activity was demonstrated by the photocatalyst prepared by the deposition of g-C3N4 on copper-modified TiO2. This photocatalyst g-C3N4/CuOx/TiO2 showed the highest total rate of electron consumed during CO2 reduction of 102 μmol h− 1 g− 1 under LED (λmax = 400 nm) and 8.1 μmol h− 1 g− 1 under simulated solar light irradiation (AM1.5G) which are 14 and 16 times higher than that TiO2 Evonik P25, respectively. The synergistic effect of TiO2 modification with g-C3N4 and CuOx for photocatalytic CO2 reduction in the solid–gas mode is demonstrated for the first time.
Cite:
Kurenkova A.Y.
, Saraev A.A.
, Alekseev R.F.
, Zhurenok A.V.
, Mishchenko D.D.
, Gerasimov E.Y.
, Kozlova E.A.
Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction
Inorganic Chemistry Communications. 2025. V.173. 113863 :1-10. DOI: 10.1016/j.inoche.2024.113863 WOS Scopus AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Selecting a Synthetic Route of Copper-Modified g-C3N4/TiO2 Photocatalysts for Efficient CO2 Reduction
Inorganic Chemistry Communications. 2025. V.173. 113863 :1-10. DOI: 10.1016/j.inoche.2024.113863 WOS Scopus AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Sep 6, 2024 |
| Accepted: | Dec 29, 2024 |
| Published online: | Dec 31, 2024 |
| Published print: | Mar 1, 2025 |
Identifiers:
| Web of science: | WOS:001409343700001 |
| Scopus: | 2-s2.0-85214336295 |
| Chemical Abstracts: | 2025:89946 |
| OpenAlex: | W4405962043 |
| publication_identifier.sciact_skif_identifier_type: | 3654 |