Br- and I-Modified g-C3N4 Photocatalysts Prepared via Novel Two-Stage Technique for Hydrogen Evolution and Photocurrent Generation Full article
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487 |
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| Output data | Year: 2024, Volume: 51, Number: Part B, Pages: 1367-1379 Pages count : 13 DOI: 10.1016/j.ijhydene.2023.09.195 | ||||
| Tags | g-C3N4; Halide doping; Photocatalytic hydrogen production; Photocurrent generation; Visible light | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | ГЗ-2021-2023 |
| 2 | Council for Grants of the President of the Russian Federation | МК-2133.2022.1.3 |
Abstract:
Graphitic carbon nitride (g-C3N4) modified with bromine and iodine was synthesized by a novel two-stage technique that included hydrothermal pre-treatment of melamine and its calcination in a mixture with ammonium halide. Prepared photocatalysts were tested by a set of methods including X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), thermal gravimetric analysis (TGA), low temperature nitrogen adsorption, transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CVA), impedance spectroscopy, and the Mott – Schottky method. All the photocatalysts were studied in the photocatalytic hydrogen production from triethanolamine (TEOA) under visible light irradiation (λ = 428 nm). The most active photocatalyst was prepared from a mixture of 50% NH4I and 50% melamine. Its catalytic activity (2120 μmol g−1 h−1) was 35 times higher than that of the catalyst synthesized by the simple calcination of melamine. The highest short-circuit current density of 2.7 mA/cm2 was obtained with a sample synthesized from the mixture of 80% NH4Br and 20% melamine.
Cite:
Zhurenok A.V.
, Potapenko K.O.
, Markovskaya D.V.
, Sidorenko N.D.
, Cherepanova S.V.
, Gerasimov E.Y.
, Saraev A.A.
, Kozlova E.A.
Br- and I-Modified g-C3N4 Photocatalysts Prepared via Novel Two-Stage Technique for Hydrogen Evolution and Photocurrent Generation
International Journal of Hydrogen Energy. 2024. V.51. NPart B. P.1367-1379. DOI: 10.1016/j.ijhydene.2023.09.195 WOS Scopus РИНЦ AN OpenAlex
Br- and I-Modified g-C3N4 Photocatalysts Prepared via Novel Two-Stage Technique for Hydrogen Evolution and Photocurrent Generation
International Journal of Hydrogen Energy. 2024. V.51. NPart B. P.1367-1379. DOI: 10.1016/j.ijhydene.2023.09.195 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jul 3, 2023 |
| Accepted: | Sep 18, 2023 |
| Published online: | Oct 7, 2023 |
| Published print: | Jan 2, 2024 |
Identifiers:
| Web of science: | WOS:001139491000001 |
| Scopus: | 2-s2.0-85173241259 |
| Elibrary: | 64859078 |
| Chemical Abstracts: | 2023:2031899 |
| OpenAlex: | W4387428475 |