Table 3. Comparison Study on Reduction of Cr(VI) and Phenol Degradation over other Photocatalysts.
| catalyst | concentration of Cr(VI) solution/phenol | light source | reaction time (min) | pH | result (%) | ref |
|---|---|---|---|---|---|---|
| α-MnO2@RGO | 10 mg/L Cr | visible light | 120 | 2 | 97 | (14) |
| P-doped porous ultrathin g-C3N4 nanosheets | 20 mg/L Cr | visible light | 120 | 2.13 | 75 | (32) |
| N, S co-doped CeO2 | 50 mg/L Cr | visible light | 120 | 2 | 93 | (33) |
| Ag2S QDs/SnS2 | 50 mg/L Cr | visible light | 60 | 57 | (34) | |
| Bi/Bi2MoO6 | 100 mg/L Cr | visible light | 60 | 2 | 97 | this study |
| Au-Pd/rGO | 0.5 mM phenol | sunlight | 300 | 6.9 | 94.45 | (35) |
| TiO2 nanotube array | 20 mg/L phenol | UV light | 400 | 75 | (36) | |
| Pt and Na2CO3 on TiO2 | 0.43 mM phenol | UV light | 60 | 8 | 60 | (37) |
| Bi/Bi2MoO6/CdS QDs | 10 ppm phenol | solar light | 60 | 6 | 47 | this study |