Full-spectrum responsive photocatalytic activity via non-noble metal Bi decorated mulberry-like BiVO4
Article
Article Title | Full-spectrum responsive photocatalytic activity via non-noble metal Bi decorated mulberry-like BiVO4 |
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ERA Journal ID | 4724 |
Article Category | Article |
Authors | Bi, Yaxin (Author), Yang, Yanling (Author), Shi, Xiao-Lei (Author), Feng, Lei (Author), Hou, Xiaojiang (Author), Ye, Xiaohui (Author), Zhang, Li (Author), Suo, Guoquan (Author), Lu, Siyu (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Journal of Materials Science and Technology |
Journal Citation | 83, pp. 102-112 |
Number of Pages | 11 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | China |
ISSN | 1005-0302 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jmst.2020.11.079 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S1005030221001134 |
Abstract | Due to its appropriate bandgap (∼2.4 eV) and efficient light absorption, bismuth vanadate (BiVO4) shows promising photocatalysis activity. However, the charge carrier recombination and poor electron transmission often induce poor photocatalytic performance. Herein, we report a new method to in-situ synthesize non-noble metal Bi decorated mulberry-like BiVO4 by a two-step calcination process. Comprehensive characterizations reveal that non-noble metal Bi nanoparticles grown in-situ on BiVO4 result in the red-shift of the absorbance edge, greatly extending the light absorption from the ultraviolet into the near-infrared region. The surface plasmon resonance excitation of Bi nanoparticles and synergetic effects between Bi and BiVO4 effectively improve the photocatalytic efficiency and promote the separation of photoinduced electron-hole pairs in mulberry-like BiVO4. Density functional theory (DFT) calculation results further verify that the electrons are transferred from Bi to BiVO4 and the formation of •OH radical in Bi/BiVO4 is attributed to the lower simulated free energy, which supports our experimental outcomes. This work provides a novel strategy to enhance light absorption and promote efficient solar utilization of photocatalysts for practical applications. |
Keywords | BiBiVO4; Photocatalysis; Full-spectrum; Density functional theory |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Byline Affiliations | Shaanxi University of Science and Technology, China |
Centre for Future Materials | |
Zhengzhou University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q62q8/full-spectrum-responsive-photocatalytic-activity-via-non-noble-metal-bi-decorated-mulberry-like-bivo4
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