| Catalysts | Crystallite size of metal-doped and single CdS catalysts | |
| D (nm) | Phase | |
| Ni-CdS | 4.4 | Cubic |
| Co-CdS | 4.0 | Cubic |
| Ce-CdS | 4.5 | Cubic |
| Sb-CdS | 4.5 | Cubic |
| CdS | 5.1 | Cubic |