Synergizing piezoelectric and plasmonic modulation of Ag/BiFeO3 fibrous heterostructure toward boosted photoelectrochemical energy conversion
| Autor: | Jingyu Sun, Tianjie Qin, Xierong Zeng, Ya-yun Li, Jiabao Lv, Wei-min Chen, Ji Zhou, Jing Xu |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment business.industry Heterojunction Piezoelectricity chemistry.chemical_compound Chemical energy chemistry Methyl orange Optoelectronics Energy transformation General Materials Science Charge carrier Electrical and Electronic Engineering Surface plasmon resonance business Plasmon |
| Zdroj: | Nano Energy. 89:106317 |
| ISSN: | 2211-2855 |
| DOI: | 10.1016/j.nanoen.2021.106317 |
| Popis: | Coupling piezoelectric and plasmonic effect to tune the separation and migration of photogenerated charge carriers remains the key to improving the visible-light-driven photoelectrochemical energy conversion performance. Herein, we report the rational design of Ag/BiFeO3 fibrous heterostructures (Ag/BFO) with the synergy of piezoelectric field and localized surface plasmon resonance (LSPR) modulation. Piezo-response force microscopy detection shows that the Ag2/BFO (AgNO3 dosage: 2 mL) heterostructure has the optimal piezoelectric properties (29.3 pm at −7.53 V). As a demonstration, the degradation of methyl orange and methylene blue is used to evaluate the photoelectric conversion performance of the prepared samples. The results indicate that the ultrasonic-driven and visible-light-driven Ag2/BFO sample presents significantly enhanced activity, in which the piezoelectric field inside the BFO can further promote the directional migration and separation of photogenerated charge carriers induced by the LSPR effect of Ag nanoparticles. This work offers an intriguing solution toward the rational design of advanced materials targeting direct conversion of solar light into chemical energy. |
| Databáze: | OpenAIRE |
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