Copper-Modified g-C3N4/TiO2 Nanostructured Photocatalysts for H2 Evolution from Glucose Aqueous Solution Full article
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Наносистемы: физика, химия, математика = Nanosystems: physics, chemistry, mathematics
ISSN: 2220-8054 , E-ISSN: 2305-7971 |
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| Output data | Year: 2024, Volume: 15, Number: 3, Pages: 388–397 Pages count : 10 DOI: 10.17586/2220-8054-2024-15-3-388-397 | ||
| Tags | photocatalysis, photocatalytic H2 production, biomass photoreforming, glucose photoconversion, composite photocatalysts, titanium dioxide, graphitic carbon nitride, visible light irradiation | ||
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 23-73-01161 |
Abstract:
Two strategies for synthesis of copper-modified composite photocatalysts based on graphitic carbon nitride and titanium dioxide for hydrogen evolution reaction are presented. The first one is based on the mechanical dispersion of separately prepared g-C3N4 and commercial TiO2 (Evonik P25), modified with copper. Another approach is co-calcination of melamine and commercial TiO2 with subsequent modification by copper. The samples were characterized using X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HRTEM). The synthesized photocatalysts were tested in hydrogen evolution from glucose aqueous solution under visible light irradiation (440 nm). The largest photocatalytic activities met 235 and 259 µmol·g−1·h−1, corresponding to the first and the second photocatalyst series, respectively. The most active photocatalyst from the first series 1 wt.% g-C3N4/1 wt.% CuOn/TiO2 maintained its hydrogen production rate during a 6-hour cyclic stability test.
Cite:
Kharina S.N.
, Kurenkova A.Y.
, Saraev A.A.
, Gerasimov E.Y.
, Kozlova E.A.
Copper-Modified g-C3N4/TiO2 Nanostructured Photocatalysts for H2 Evolution from Glucose Aqueous Solution
Наносистемы: физика, химия, математика = Nanosystems: physics, chemistry, mathematics. 2024. V.15. N3. P.388–397. DOI: 10.17586/2220-8054-2024-15-3-388-397 WOS Scopus РИНЦ OpenAlex
Copper-Modified g-C3N4/TiO2 Nanostructured Photocatalysts for H2 Evolution from Glucose Aqueous Solution
Наносистемы: физика, химия, математика = Nanosystems: physics, chemistry, mathematics. 2024. V.15. N3. P.388–397. DOI: 10.17586/2220-8054-2024-15-3-388-397 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Apr 18, 2024 |
| Accepted: | May 10, 2024 |
Identifiers:
| Web of science: | WOS:001273684100010 |
| Scopus: | 2-s2.0-85200683769 |
| Elibrary: | 68434021 |
| OpenAlex: | W4400844313 |