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S-Scheme Heterojunction Photocatalyst
Open accessAbstract
Summary The significance of photocatalysts is unquestionable, and scientists are devoted to improving their photocatalytic efficiency. To solve the high recombination rates of photogenerated electron-hole pairs and their low reduction and oxidation abilities in a single photocatalyst, heterojunction manipulation is urgently required. Two mainstream heterojunctions—type-II and Z-scheme heterojunctions—have been widely acknowledged. However, we soberly reflect the charge-transfer mechanism from many perspectives and are finally aware of the fundamental challenges they face. To ensure a correct understanding, it is necessary to share our analysis with others. Moreover, step-scheme (S-scheme) heterojunctions, consisting of a reduction photocatalyst and an oxidation photocatalyst with staggered band structure, are introduced to avoid misinterpretation. The differences in the charge-transfer mechanism between S-scheme, type-II, and Z-scheme heterojunctions are highlighted. Finally, limitations and the future research direction of S-scheme photocatalysts are discussed.
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Cited by
Unique S-scheme heterojunctions in self-assembled TiO2/CsPbBr3 hybrids for CO2 photoreduction
Xu, F., Meng, K., Cheng, B., Wang, S., Xu, J., & Yu, J. (2020) · Nature Communications · doi:10.1038/s41467-020-18350-7 · Cited by 1,456
Self-citationZu, D., Ying, Y., Wei, Q., Xiong, P., Ahmed, M. S., Lin, Z., Li, M. M., Li, M., Xu, Z., Chen, G., et al. (2024) · Angewandte Chemie International Edition · doi:10.1002/anie.202405756 · Cited by 291
Gao, K., Hou, L.-A., An, X., Huang, D., & Yang, Y. (2023) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2022.122150 · Cited by 270
Wang, J., Yuan, L., Zhang, P., Mao, J., Fan, J., & Zhang, X. L. (2024) · Nanoscale · doi:10.1039/d3nr06411e · Cited by 21
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Metadata
- Authors
- Xu, Q., Zhang, L., Cheng, B., Fan, J., & Yu, J.
- Venue
- Chem
- Publisher
- Elsevier BV
- Published
- 2020-07
- Volume
- 6
- Issue
- 7
- Pages
- 1543-1559
- ISSN
- 2451-9294 (ISSN-L)
- OpenAlex
- W3037259832
- Cited by
- 3,898
- References
- 0
- FWCI
- 93.57
- Type
- journal article
- Language
- en
- Open access
- bronze
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