Resumen
Developing a low-cost photocatalyst with efficient performance is significant for practical application of solar-to-fuel conversion. Here, we first adopt a facile method to synthesize Bi 2 O 2 CO 3 -modified g-C 3 N 4 heterojunction via in situ thermal growth. Bi 2 O 2 CO 3 nanoparticles on g-C 3 N 4 nanosheets play a vital role in improving the photocatalytic activity of splitting water for hydrogen production. The activity of Bi 2 O 2 CO 3 /g-C 3 N 4 heterojunction during 5 h reaches 965 μmol·g -1 ·h -1 , which is much higher than that of pure g-C 3 N 4 (337 μmol·g -1 ·h -1 ) or other modified g-C 3 N 4 materials. The significantly enhanced photocatalytic activity is attributed to direct Z-scheme system construction, resulting in a superior charge carrier separation ability. Theoretical calculations further reveal the redistribution of charge carrier at interface between Bi 2 O 2 CO 3 and g-C 3 N 4 . This work provides new direction to synthesize g-C 3 N 4 -based heterojunction with high photocatalytic performance for alleviating energy and environmental issues.
| Idioma original | Inglés |
|---|---|
| Páginas (desde-hasta) | 4795-4804 |
| Número de páginas | 10 |
| Publicación | Journal of Physical Chemistry C |
| Volumen | 123 |
| N.º | 8 |
| DOI | |
| Estado | Publicada - 28 feb 2019 |
ODS de las Naciones Unidas
Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible
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ODS 7: Energía asequible y no contaminante
Huella
Profundice en los temas de investigación de 'Visible Light-Driven Photocatalytic H 2 Generation and Mechanism Insights into Bi 2 O 2 CO 3 /G-C 3 N 4 Z-Scheme Photocatalyst'. En conjunto forman una huella única.Citar esto
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