Enhanced photoelectrocatalytic performance from size effects in pure and La-doped BiFeO3 nanoparticles
| العنوان: | Enhanced photoelectrocatalytic performance from size effects in pure and La-doped BiFeO3 nanoparticles |
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| المؤلفون: | Heng Zhang, Xiaoli Zhang, Chuanfu Huang, Mingxue Li, Changyong Lan, Wei Zhang |
| المصدر: | Applied Physics A. 126 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 010302 applied physics, Materials science, business.industry, Band gap, Doping, Nanoparticle, 02 engineering and technology, General Chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Average size, 0103 physical sciences, Optoelectronics, General Materials Science, 0210 nano-technology, Electronic band structure, business |
| الوصف: | Due to the energy crisis, the development of high-performance photoelectrocatalysts is becoming a hot research area in recent years. Among the materials studied, BiFeO3 (BFO) exhibits excellent photoelectrocatalytic performance due to its moderate bandgap and unique band structure. In this paper, both pure BFO and La-doped BFO were synthesized by solgel method. The average size of the BFO nanoparticles was tuned from 65 to 440 nm. For the La-doped BFO, the average size of the nanoparticles was reduced from 95 to 40 nm with the increase in doping level from 0 to 30%. Next, the photoelectrocatalytic performance of the pure BFO nanoparticles were enhanced with the reduction in nanoparticle size, which was possibly caused by increased surface-to-volume ratio. For the increase in doping of La, the corresponding photoelectrocatalytic performance was first enhanced and then degraded. To understand the obtained results, a mechanism was proposed, which can be attributed to the competition between geometric size effects and surface effects. Our findings provided a controlled way to tune the photoelectrocatalytic performance of BFO system, which is crucial for practical applications. |
| تدمد: | 1432-0630 0947-8396 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4e304de61d566946fcaefa1a37c57035 https://doi.org/10.1007/s00339-020-3459-y |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........4e304de61d566946fcaefa1a37c57035 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14320630 09478396 |
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