Solar photocatalytic hydrogen production through metal sulfide/UiO-66-NH2 heterojunctions
The design of efficient photocatalysts for hydrogen production by water electrolysis under solar irradiation still remains a challenge. Herein, a series of binary heterojunctions comprising metal sulfides and a zirconium-based MOF were synthesized and employed as photocatalysts for hydrogen producti...
| Authors: | , , , |
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| Format: | article |
| Publication Date: | 2024 |
| Country: | España |
| Institution: | Universidad Autónoma de Madrid |
| Repository: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Language: | English |
| OAI Identifier: | oai:repositorio.uam.es:10486/713992 |
| Online Access: | http://hdl.handle.net/10486/713992 https://dx.doi.org/10.1016/j.seppur.2024.128663 |
| Access Level: | Open access |
| Keyword: | Heterojunction Photocatalysis Hydrogen Production Metal Organic Framework Metal Sulfide Química |
| Summary: | The design of efficient photocatalysts for hydrogen production by water electrolysis under solar irradiation still remains a challenge. Herein, a series of binary heterojunctions comprising metal sulfides and a zirconium-based MOF were synthesized and employed as photocatalysts for hydrogen production under simulated solar light using different scavengers. The highest hydrogen production rate (64.0 μmol·g−1·h−1) was achieved using the CdS/UiO-66-NH2 heterojunction under cocatalyst-free conditions and using TEOA as a hole scavenger. A synergistic effect between the CdS and the UiO-66-NH2 was confirmed since the single semiconductors exhibited almost negligible hydrogen production. CdS/UiO-66-NH2 characterization revealed that the improved photocatalytic performance was due to the formation of a Type II heterojunction among both semiconductors, thus favouring the separation of photogenerated electron-hole pairs. The findings of this study offer a novel perspective on the development of advanced MOF-based photocatalysts for hydrogen production under solar light |
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