Highly Efficient Photocatalytic H2O2 Production under Ambient Conditions via Defective In2S3 Nanosheets
Oxygen and water generating hydrogen peroxide (H2O2) by optical drive is an extremely promising pathway, and the large amount of oxygen in air and natural sunlight illumination are excellent catalytic conditions. However, the separation efficiency of photogenerated electron-hole pairs greatly limits...
| Veröffentlicht in: | Langmuir : the ACS journal of surfaces and colloids. - 1999. - (2025) vom: 02. Jan. |
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| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2025
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| Zugriff auf das übergeordnete Werk: | Langmuir : the ACS journal of surfaces and colloids |
| Schlagworte: | Journal Article |
| Zusammenfassung: | Oxygen and water generating hydrogen peroxide (H2O2) by optical drive is an extremely promising pathway, and the large amount of oxygen in air and natural sunlight illumination are excellent catalytic conditions. However, the separation efficiency of photogenerated electron-hole pairs greatly limits the photocatalytic efficiency, especially in the absence of sacrificial agents. Here, we report an In2S3 nanosheet with an S vacancy (Sv-In2S3). The highest H2O2 yield of Sv-In2S3 is 2.585 mmol g-1 h-1 under pure water, air, and sunlight (P = 920 W/m2), largely outperforming other reported photocatalysts for H2O2 production. The experimental results show that the introduction of Sv accelerates the separation of photogenerated electron-hole pairs and achieves efficient H2O2 production through an oxygen reduction reaction. This efficient photosynthesis under ambient conditions allows solar-chemical conversion to take place in a truly cost-effective and sustainable way, opening up possibilities for practical production |
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| Beschreibung: | Date Revised 02.01.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/acs.langmuir.4c04500 |