Synthesis of Effective NiO/Ni/g-C3N4 Photocatalysts for CO2 Reduction under Visible Light Irradiation Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2024, Volume: 65, Number: 6, Pages: 724-732 Pages count : 9 DOI: 10.1134/S0023158424602699 | ||||||
| Tags | photocatalysis, photocatalytic CO2 conversion, visible light, g-C3N4, Ni, NiO, CO formation, CH4 formation | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 24-43-03010 |
Abstract:
Photocatalytic reduction of CO2 is one of the promising strategies for synthesising valuable organic compounds and solving both energy and environmental problems. In the present work, NiO/Ni/g-C3N4 photocatalysts were synthesised. Initially, g-C3N4 was prepared by calcination of melamine and urea and then modified by photodeposition of a NiO/Ni co-catalyst on its surface. The structure of the photocatalysts was confirmed by X-ray phase analysis, UV–Vis diffuse reflection spectroscopy, and high-resolution transmission electron microscopy. The highest activity in the reaction of photocatalytic CO2 reduction was demonstrated by 2 wt % (NiO/Ni)/g-C3N4 and 3 wt % (NiO/Ni)/g-C3N4, equal to 13.2 and 12.4 μmol g–1 h–1, respectively. It is worth noting that in this case, an almost 3-fold increase in the reaction rate was achieved compared to the pristine g-C3N4. The deposition of NiO/Ni on g-C3N4 solves two fundamental problems: adsorption of CO2 and separation of photogenerated electrons and holes. The present work demonstrates an approach to the synthesis of active catalysts, in particular an approach to design a hybrid NiO/Ni co-catalyst for efficient photocatalytic CO2 conversion.
Cite:
Potapenko K.O.
, Kurenkova A.Y.
, Mishchenko D.D.
, Gerasimov E.Y.
, Byambajav E.
, Kozlova E.A.
Synthesis of Effective NiO/Ni/g-C3N4 Photocatalysts for CO2 Reduction under Visible Light Irradiation
Kinetics and Catalysis. 2024. V.65. N6. P.724-732. DOI: 10.1134/S0023158424602699 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Synthesis of Effective NiO/Ni/g-C3N4 Photocatalysts for CO2 Reduction under Visible Light Irradiation
Kinetics and Catalysis. 2024. V.65. N6. P.724-732. DOI: 10.1134/S0023158424602699 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Sep 17, 2024 |
| Published print: | Dec 1, 2024 |
| Published online: | Feb 25, 2025 |
| Accepted: | Nov 22, 2025 |
Identifiers:
| Web of science: | WOS:001432561900001 |
| Scopus: | 2-s2.0-85218461189 |
| Elibrary: | 80381327 |
| Chemical Abstracts: | 2025:474192 |
| OpenAlex: | W4407894004 |
| publication_identifier.sciact_skif_identifier_type: | 3726 |
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