Table 2. Band Gaps of g-C3N4 and CoAl2O4@g-C3N4 Samples.
| samples | band gap, eV |
|---|---|
| g-C3N4 | 2.70 |
| 1.0 wt % CoAl2O4@g-C3N4 | 2.20 |
| 2.0 wt % CoAl2O4@g-C3N4 | 2.10 |
| 3.0 wt % CoAl2O4@g-C3N4 | 1.94 |
| 4.0 wt % CoAl2O4@g-C3N4 | 1.92 |
| CoAl2O4 | 1.80 |
| samples | band gap, eV |
|---|---|
| g-C3N4 | 2.70 |
| 1.0 wt % CoAl2O4@g-C3N4 | 2.20 |
| 2.0 wt % CoAl2O4@g-C3N4 | 2.10 |
| 3.0 wt % CoAl2O4@g-C3N4 | 1.94 |
| 4.0 wt % CoAl2O4@g-C3N4 | 1.92 |
| CoAl2O4 | 1.80 |