Nanocarbon modified carbon nitride for improved photocatalytic H2 production
Defect modified carbon nitride (CN) was prepared from a freeze-dried solution of dicyandiamide and NH<inf>4</inf>Cl. Nanocomposites of the defect modified CN and carbon materials were prepared to overcome some of the disadvantages of CN and enhance photocatalytic H<inf>2</inf>...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/413709 |
| Acceso en línea: | http://hdl.handle.net/10261/413709 https://api.elsevier.com/content/abstract/scopus_id/105004687083 |
| Access Level: | acceso abierto |
| Palabra clave: | Water splitting Carbon materials Carbon nitride Composites http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| Sumario: | Defect modified carbon nitride (CN) was prepared from a freeze-dried solution of dicyandiamide and NH<inf>4</inf>Cl. Nanocomposites of the defect modified CN and carbon materials were prepared to overcome some of the disadvantages of CN and enhance photocatalytic H<inf>2</inf> production from water splitting. The photocatalysts were thoroughly characterized including porosity, crystallinity, electrochemistry, chemical composition and optical absorption. Inclusion of NH<inf>4</inf>Cl produced an increase in surface area with a corresponding increase in active sites. The composite N-D-CN/1QD-D demonstrated the best charge separation efficiency and reduced recombination of the electron-hole pairs, in addition to improved charge density and a reduced charge transfer barrier, which was reflected in H<inf>2</inf> production 3.6 times greater than from pristine CN. |
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