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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
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 Zhurenok Angelina V. 1 , Potapenko Kseniya O. 1 , Markovskaya Dina V. 1 , Sidorenko Nikolay D. 1 , Cherepanova Svetlana V. 1 , Gerasimov Evgeniy Yu 1 , Saraev Andrey A. 2 , Kozlova Ekaterina A. 1
Affiliations
1 Boreskov Institute of Catalysis, 5 Ave. Lavrentieva, Novosibirsk, 630090, Russia
2 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis, Kol'tsovo 630559, Russia

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 publication_identifier_short.sciact_skif_identifier_type
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
publication_identifier.sciact_skif_identifier_type: 2163
Citing:
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OpenAlex 14
Scopus 14
Web of science 14
Elibrary 9
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