Synergy Between Oxygen Vacancies and Surface Plasmon Resonance Effect in of Bi@Vo‐Bi2O3 for Efficient Photocatalytic Performance Under Visible Light
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Wiley
2025
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| author | Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia |
| author_facet | Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia |
| collection | Wiley Open Access |
| contents | Synergy Between Oxygen Vacancies and Surface Plasmon Resonance Effect in of Bi@Vo‐Bi2O3 for Efficient Photocatalytic Performance Under Visible Light Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia ChemSusChem It remains a significant challenge for a photocatalyst to achieve a broad light response, effective O2 adsorption and long photogenerated carrier lifetime in the catalytic reaction. Herein, this study designs a plasmonic Bi@Vo‐Bi2O3 core@shell heterojunction via the hydrothermal method and demonstrates the presence of surface oxygen vacancies identified with electron spin resonance. Importantly, O2 temperature programmed desorption in combination with ultraviolet‐visible diffuse reflectance spectra reveals the introduction of plasmonic Bi as the core of Bi@Vo‐Bi2O3 effectively promotes O2 adsorption by capturing electrons from the defect states and broad the light absorption response range, which synergistically promote catalytic activity on O2 reduction to H2O2 production, pollutant degradation and antibacterial performance in pure water without sacrificial agent. Compared to the pure Bi2O3, the H2O2 yield of Bi@Vo‐Bi2O3 is approximately two times greater than that of Bi2O3 under visible light. Additionally, the Schottky barrier interface in integrated Bi@Vo‐Bi2O3 prevents the excited electrons from recombining with the holes. Furthermore, it was proven that 1O2 plays a prominent role in the degradation of Methylene blue, as confirmed by scavenger experiments and detailed experimental characterizations. This work's insights into the photocatalysis mechanism may guide the development of new photocatalysts for enhancing photocatalytic performance. 10.1002/cssc.202402175 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/cssc.202402175 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_202402175 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Synergy Between Oxygen Vacancies and Surface Plasmon Resonance Effect in of Bi@Vo‐Bi2O3 for Efficient Photocatalytic Performance Under Visible Light Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia ChemSusChem Synergy Between Oxygen Vacancies and Surface Plasmon Resonance Effect in of Bi@Vo‐Bi2O3 for Efficient Photocatalytic Performance Under Visible Light Jinhuan Cheng Jiahua Cui Jianxing Liang Shah Nawaz Khan Jinping Jia ChemSusChem It remains a significant challenge for a photocatalyst to achieve a broad light response, effective O2 adsorption and long photogenerated carrier lifetime in the catalytic reaction. Herein, this study designs a plasmonic Bi@Vo‐Bi2O3 core@shell heterojunction via the hydrothermal method and demonstrates the presence of surface oxygen vacancies identified with electron spin resonance. Importantly, O2 temperature programmed desorption in combination with ultraviolet‐visible diffuse reflectance spectra reveals the introduction of plasmonic Bi as the core of Bi@Vo‐Bi2O3 effectively promotes O2 adsorption by capturing electrons from the defect states and broad the light absorption response range, which synergistically promote catalytic activity on O2 reduction to H2O2 production, pollutant degradation and antibacterial performance in pure water without sacrificial agent. Compared to the pure Bi2O3, the H2O2 yield of Bi@Vo‐Bi2O3 is approximately two times greater than that of Bi2O3 under visible light. Additionally, the Schottky barrier interface in integrated Bi@Vo‐Bi2O3 prevents the excited electrons from recombining with the holes. Furthermore, it was proven that 1O2 plays a prominent role in the degradation of Methylene blue, as confirmed by scavenger experiments and detailed experimental characterizations. This work's insights into the photocatalysis mechanism may guide the development of new photocatalysts for enhancing photocatalytic performance. 10.1002/cssc.202402175 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Synergy Between Oxygen Vacancies and Surface Plasmon Resonance Effect in of Bi@Vo‐Bi2O3 for Efficient Photocatalytic Performance Under Visible Light |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202402175 |