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| Natura: | Artículo Open Access |
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Wiley
2026
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| Accesso online: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70704 |
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| _version_ | 1867013768397979648 |
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| author | Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su |
| author_facet | Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su |
| collection | Wiley Open Access |
| contents | Z‐Scheme Charge Flow Activates ZnCo 2 S 4 as an Electron‐Aggregation Site for Photocatalytic Hydrogen Evolution Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su ChemSusChem Hydrogen energy, as a new, clean and renewable energy, has great potential to address the global energy crisis and environmental pollution. This study presents a ZnCo 2 S 4 /ZnIn 2 S 4 (ZCS/ZIS) heterojunction photocatalyst, where the charge transfer mechanism ingeniously transforms the role of ZnCo 2 S 4 . While individually photocatalytically inactive, ZnCo 2 S 4 becomes crucial in the ZCS/ZIS composite. Driven by a built‐in electric field arising from their difference in Fermi level, a direct Z‐scheme charge flow is established. This flow not only facilitates the separation of photogenerated electrons and holes at the interface but also, more importantly, activates ZnCo 2 S 4 as a primary electron aggregation site. Consequently, strongly reductive electrons are efficiently enriched on ZnCo 2 S 4 for the hydrogen evolution reaction. The optimized ZCS/ZIS composite achieves an exceptional H 2 production rate of 6.60 mmol g −1 h −1 under visible light, which is 9.3 times that of ZnIn 2 S 4 , with an apparent quantum yield of 7.96% at 400 nm. This work highlights the strategic design of charge dynamics to unlock the latent functionality of components within a Z‐scheme system. 10.1002/cssc.70704 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/cssc.70704 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_70704 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Z‐Scheme Charge Flow Activates ZnCo 2 S 4 as an Electron‐Aggregation Site for Photocatalytic Hydrogen Evolution Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su ChemSusChem Z‐Scheme Charge Flow Activates ZnCo 2 S 4 as an Electron‐Aggregation Site for Photocatalytic Hydrogen Evolution Qianran Feng Jiawei Xie Xinyuan Xu Liuyun Chen Zuzeng Qin Tongming Su ChemSusChem Hydrogen energy, as a new, clean and renewable energy, has great potential to address the global energy crisis and environmental pollution. This study presents a ZnCo 2 S 4 /ZnIn 2 S 4 (ZCS/ZIS) heterojunction photocatalyst, where the charge transfer mechanism ingeniously transforms the role of ZnCo 2 S 4 . While individually photocatalytically inactive, ZnCo 2 S 4 becomes crucial in the ZCS/ZIS composite. Driven by a built‐in electric field arising from their difference in Fermi level, a direct Z‐scheme charge flow is established. This flow not only facilitates the separation of photogenerated electrons and holes at the interface but also, more importantly, activates ZnCo 2 S 4 as a primary electron aggregation site. Consequently, strongly reductive electrons are efficiently enriched on ZnCo 2 S 4 for the hydrogen evolution reaction. The optimized ZCS/ZIS composite achieves an exceptional H 2 production rate of 6.60 mmol g −1 h −1 under visible light, which is 9.3 times that of ZnIn 2 S 4 , with an apparent quantum yield of 7.96% at 400 nm. This work highlights the strategic design of charge dynamics to unlock the latent functionality of components within a Z‐scheme system. 10.1002/cssc.70704 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Z‐Scheme Charge Flow Activates ZnCo 2 S 4 as an Electron‐Aggregation Site for Photocatalytic Hydrogen Evolution |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70704 |