Research Article
A Comparison of Different A-, A-B-, and B-Site Incorporated in (Ba0.5Sr0.5)TiO3 on Photocatalytic Application
Table 3
Indirect band gap, phonon energy, and percentage of PL emissions of BST catalysts.
| Sample | Indirect band gap (eV) | Phonon emissions energy (eV) | Phonon absorption energy (meV) | Nonradiative energy (eV) | PL emissions (%) | Violet | Blue | Green | Yellow | ≈3.16 | ≈2.95 | ≈2.76 | ≈2.55 | ≈2.35 | ≈1.94 | (eV) |
| BST | 3.10 | 0.66 | 60.26 | 0.72 | 32.83 | 18.85 | 17.19 | 10.49 | 12.17 | 8.46 | A-BST | 3.06 | 0.66 | 61.72 | 0.72 | 30.76 | 27.21 | 21.92 | 12.50 | 5.29 | 2.32 | A-B-BST | 3.10 | 0.68 | 86.71 | 0.77 | 25.55 | 27.72 | 24.13 | 14.36 | 5.53 | 2.71 | B-BST | 3.05 | 0.62 | 135.77 | 0.76 | 27.77 | 14.06 | 28.53 | 11.10 | 7.43 | 9.11 |
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