Controlled oxygen doping in highly dispersed Ni-loaded g-C3N4 nanotubes for efficient photocatalytic H2O2 production
Hydrogen peroxide (HO) is both a key component in several industrial processes and a promising liquid fuel. The production of HO by solar photocatalysis is a suitable strategy to convert and store solar energy into chemical energy. Here we report an oxygen-doped tubular g-CN with uniformly dispersed...
| Autores: | , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:270842 |
| Acceso en línea: | https://ddd.uab.cat/record/270842 https://dx.doi.org/urn:doi:10.1016/j.cej.2022.135999 |
| Access Level: | acceso abierto |
| Palabra clave: | Carbon nitride Nanotubes Nickel nanoparticles Photocatalysis H2O2 |
| Sumario: | Hydrogen peroxide (HO) is both a key component in several industrial processes and a promising liquid fuel. The production of HO by solar photocatalysis is a suitable strategy to convert and store solar energy into chemical energy. Here we report an oxygen-doped tubular g-CN with uniformly dispersed nickel nanoparticles for efficient photocatalytic HO generation. The hollow structure of the tubular g-CN provides a large surface with a high density of reactive sites and efficient visible light absorption during the photocatalytic reaction. The oxygen doping and Ni loading enable a fast separation of photogenerated charge carriers and a high selectivity toward the two-electron process during the oxygen reduction reaction (ORR). The optimized composition, Ni/OtCN, displays an HO production rate of 2464 μmol g·h, which is eightfold higher than that of bulk g-CN under visible light irradiation (λ. |
|---|