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| Main Authors: | , , , , , , , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2026
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| Subjects: | |
| Online Access: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70748 |
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Table of Contents:
- Enhancing High‐Salinity Tolerance in Photocatalytic Hydrogen Evolution via Membrane‐Integrated Asymmetrically Polarized Catalysts Yuying Shi Jialiying Long Man Yang Runjie Li Zeyao Chen Jiasen Shi Danni Wang Peng Li Qi Sui ChemSusChem Developing efficient photocatalytic hydrogen evolution (PHE) systems under a high‐salinity seawater environment is extremely attractive for sustainable energy, which still suffers from the rational design of core photocatalysts. Here, a membrane‐integrated collaborative strategy via incorporating asymmetric‐polarization photocatalysts was proposed. The specific electron mediators ( TPyB‐X ) bearing diverse molecular symmetry were used to modify the prototypical semiconductor graphitic carbon nitride ( CN ). Among them, powder‐state CN‐1%TPyB‐A1 exhibits the best PHE performance of 4179 μmol·g −1 ·h −1 , which is 6.7 times over pure CN . Characterization and theoretical calculations reveal that the asymmetric structure of TPyB‐A1 facilitates the formation of a gradient microelectric field, which promotes directional charge separation and contributes to the enhanced PHE activity. Moreover, the membrane‐based CN‐A1‐EEA displays a satisfactory PHE activity with both freshwater (5114 μmol·m −2 ·h −1 ) and simulated seawater (5285 μmol·m −2 ·h −1 ), exhibiting more stable performance than the powder‐state CN‐1%TPyB‐A1 (decreasing by 34%). This work demonstrates that the membrane‐integrated photocatalyst can effectively resist high‐salinity environments, which gives a new clue to rationally design the related materials working in seawater. 10.1002/cssc.70748 http://onlinelibrary.wiley.com/termsAndConditions#vor