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In situ construction of protonated g-C3N4/Ti3C2 MXene Schottky heterojunctions for efficient photocatalytic hydrogen production
Abstract
Abstract Converting sustainable solar energy into hydrogen energy over semiconductor-based photocatalytic materials provides an alternative to fossil fuel consumption. However, efficient photocatalytic splitting of water to realize carbon-free hydrogen production remains a challenge. Heterojunction photocatalysts with well-defined dimensionality and perfectly matched interfaces are promising for achieving highly efficient solar-to-hydrogen conversion. Herein, we report the fabrication of a novel type of protonated graphitic carbon nitride (PCN)/Ti3C2 MXene heterojunctions with strong interfacial interactions. As expected, the two-dimensional (2D) PCN/2D Ti3C2 MXene interface heterojunction achieves a highly improved hydrogen evolution rate (2181 μmol·g−1) in comparison with bulk g-C3N4 (393 μmol·g−1) and protonated g-C3N4 (816 μmol·g−1). The charge-regulated surfaces of PCN and the accelerated charge transport at the face-to-face 2D/2D Schottky heterojunction interface are the major contributors to the excellent hydrogen evolution performance of the composite photocatalyst.
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Cites
Ong, W.-J., Tan, L.-L., Ng, Y. H., Yong, S.-T., & Chai, S.-P. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00075 · Cited by 7,147
Cited by
A Review on MXene Synthesis, Stability, and Photocatalytic Applications
Murali, G., Reddy Modigunta, J. K., Park, Y. H., Lee, J.-H., Rawal, J., Lee, S.-Y., In, I., & Park, S.-J. (2022) · ACS Nano · doi:10.1021/acsnano.2c04750 · Cited by 668
Metadata
- Authors
- Xu, H., Xiao, R., Huang, J., Jiang, Y., Zhao, C., & Yang, X.
- Venue
- Chinese Journal of Catalysis
- Publisher
- Elsevier BV
- Published
- 2021-01
- Volume
- 42
- Issue
- 1
- Pages
- 107-114
- ISSN
- 0253-9837 (ISSN-L)
- 1872-2067
- OpenAlex
- W3037067499
- Cited by
- 245
- References
- 1
- FWCI
- 7.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Xu, H., Xiao, R., Huang, J., Jiang, Y., Zhao, C., & Yang, X. (2021). In situ construction of protonated g-C3N4/Ti3C2 MXene Schottky heterojunctions for efficient photocatalytic hydrogen production. Chinese Journal of Catalysis. https://doi.org/10.1016/s1872-2067(20)63559-8
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