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Direct Z-scheme ZnO/CdS hierarchical photocatalyst for enhanced photocatalytic H2-production activity
Abstract
Abstract Herein, ZnO/CdS hierarchical composite was prepared through a hydrothermal and chemical bath deposition (CBD) process. Its photocatalytic H2-production performance was tested. Mass ratio of CdS acted a pivotal part in light absorption and photocatalytic properties. Noticeably, promoted photocatalytic H2-production activity of 4134 μmol g−1 h-1 was achieved by the sample with optimal CdS content. Significantly, the photoluminescence (PL) detection of hydroxyl radicals, as well as the in-situ XPS measurements was selected to verify the direct Z-scheme charge migration mechanism. This mechanism endowed the composite with strong capability for hydrogen evolution and elucidated the improved photocatalytic performance. The improvement of photocatalytic activity was due to hierarchical structure, extended visible light response and direct Z-scheme mechanism. This work will give an innovative vision in constructing direct Z-scheme photocatalytic system with great photocatalytic H2-production activity.
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Electrochemical Photolysis of Water at a Semiconductor Electrode
FUJISHIMA, A., & HONDA, K. (1972) · Nature · doi:10.1038/238037a0 · Cited by 34,169
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Metadata
- Authors
- Wang, S., Zhu, B., Liu, M., Zhang, L., Yu, J., & Zhou, M.
- Venue
- Applied Catalysis B: Environmental
- Publisher
- Elsevier BV
- Published
- 2019-04
- Volume
- 243
- Pages
- 19-26
- ISSN
- 0926-3373 (ISSN-L)
- OpenAlex
- W2895862456
- Cited by
- 876
- References
- 1
- FWCI
- 23.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, S., Zhu, B., Liu, M., Zhang, L., Yu, J., & Zhou, M. (2019). Direct Z-scheme ZnO/CdS hierarchical photocatalyst for enhanced photocatalytic H2-production activity. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2018.10.019
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