Selectivity Control of CO2 Reduction over Pt/g-C3N4 Photocatalysts under Visible Light Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2023, Volume: 13, Number: 2, Article number : 273, Pages count : 14 DOI: 10.3390/catal13020273 | ||
| Tags | photocatalysis; photocatalytic CO2 reduction; g‐C3N4; platinum; visible light; CH4 production | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 21-73-10235 |
Abstract:
Photocatalysts based on g-C3N4 have been investigated in the CO2 reduction reaction under visible light irradiation (λ = 397, 427, 452 nm). Photocatalysts were prepared by melamine calcination at 500–600 °C with further platinum deposition (0.1–1.0 wt.%). The effect of the preparation conditions of g-C3N4 and the method of platinum deposition on the physicochemical properties and activity of photocatalysts was studied. The photocatalysts were investigated by X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, X-ray diffraction, high resolution transmission electron microscopy, UV-Vis spectroscopy, and low temperature nitrogen adsorption techniques. It has been found that the efficiency of CO2 reduction is governed by the surface area of g-C3N4 and the presence of platinum in the metallic state, while the optimal content of platinum is 0.5 wt. %. The highest rate of CO2 reduction achieved over Pt/g-C3N4 photocatalyst is 13.2 µmol h−1 g−1 (397 nm), which exceeds the activity of pristine g-C3N4 by 7 times. The most active photocatalysts was prepared by calcining melamine in air at 600 °C, followed by modification with platinum (0.5 wt.%).
Cite:
Saraev A.A.
, Kurenkova A.Y.
, Zhurenok A.V.
, Gerasimov E.Y.
, Kozlova E.A.
Selectivity Control of CO2 Reduction over Pt/g-C3N4 Photocatalysts under Visible Light
Catalysts. 2023. V.13. N2. 273 :1-14. DOI: 10.3390/catal13020273 WOS Scopus РИНЦ AN OpenAlex
Selectivity Control of CO2 Reduction over Pt/g-C3N4 Photocatalysts under Visible Light
Catalysts. 2023. V.13. N2. 273 :1-14. DOI: 10.3390/catal13020273 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Dec 29, 2022 |
| Accepted: | Jan 21, 2023 |
| Published online: | Jan 25, 2023 |
| Published print: | Feb 1, 2023 |
Identifiers:
| Web of science: | WOS:000938881400001 |
| Scopus: | 2-s2.0-85148876562 |
| Elibrary: | 54361427 |
| Chemical Abstracts: | 2023:433214 |
| OpenAlex: | W4318054388 |