Loading...
Please wait, while we are loading the content...
Similar Documents
Bismuth Tantalum Oxyhalogen: A Promising Candidate Photocatalyst for Solar Water Splitting
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tao, Xiaoping Zhao, Yue Mu, Linchao Wang, Shengyang Li, Rengui |
| Copyright Year | 2018 |
| Abstract | As wide range of light absorption and suitable redox potentials are prerequisites for photocatalytic water splitting, exploring new semiconductor-based materials with proper band structures for water splitting still calls for longstanding efforts. In this work, a series of photocatalysts, bismuth tantalum oxyhalide, Bi4TaO8X (X = Cl, Br), with valence band and conduction band positions at ≈−0.70 and ≈1.80 eV versus the reversible hydrogen electrode (RHE), respectively, are found to be capable for both water oxidation and reduction under visible light irradiation. Using flux synthetic methods, Bi4TaO8X (X = Cl, Br) with microplatelet morphology can be successfully prepared. The photocatalyst based on these materials shows an apparent quantum efficiency as high as 20% at 420 nm for water oxidation. In addition, a Z-scheme system coupling Bi4TaO8Br with Ru/SrTiO3:Rh is successfully achieved for overall water splitting with a stoichiometric ratio of H2 and O2 evolutions. This work demonstrates a new series of semiconductors Bi4TaO8X (X = Cl, Br) with the promising application in the field of solar energy utilization. |
| Starting Page | 1701392 |
| Ending Page | 1701392 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/aenm.201701392 |
| Alternate Webpage(s) | http://www.shokubai.org/tocat8/pdf/Poster/P3082.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/aenm.201701392 |
| Volume Number | 8 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
