Table 2. Photocatalytic CO2 Reduction Yields Obtained by Photocatalysts in Liquid-Phase Reactions.
| photocatalyst | light source | reaction medium | products | yields (μmol h–1 g–1) | references |
|---|---|---|---|---|---|
| ZnO/Ag0.5Cu0.5/CdS | sunlight | 2-propanol·H2O | CO, CH4, H2 | 162 (CO) | present work |
| ZnO/Ag0.75Cu0.25/CdS | visible | 2-propanol·H2O | CO, CH4, H2 | 327 (CO) | present work |
| Pt:TiO2 | UV | H2O | H2, CH4, CO | 1.4 (CH4) | (10) |
| ZnS:Cd | UV (Xe) | 2-propanol·H2O | HCOOH, H2 | 10 μmol h–1 (HCOOH) | (48) |
| CdS | visible | 2-propanol·H2O | HCOOH, CO, H2 | 10 (HCOOH) | (49) |
| ZnFe2O4/TiO2 | UV | cyclohexanol·H2O | HCOO– | 22 (HCOO–) | (50) |
| Ru(II)-complex/C3N4 | visible | methanol–DMA | CO | 5.7 (CO) | (51) |
| Ru(II)-complex/Ag/C3N4 | visible | K2CO3–EDTA·H2O | HCOO–, H2 | 83 (HCOO–) | (52) |