Table 2 Comparative study with other photocatalysts.
Catalyst | Dye | Initial dye concentration | Catalyst dose (mg) | pH | Time (min) | Degradation (%) | References |
|---|---|---|---|---|---|---|---|
CuO | MB | 100 mg/l | 1000 mg/l | 10 | 120 | 97.5 | Present study |
CuO-OP | MB | 100 mg/l | 1000 mg/l | 10 | 120 | 95.37 | Present study |
CuO | RR195 | 50 mL of dye (10 mg/mL) | 50 µg/mL | – | 75 | 84.66 | |
RB | – | 90.82 | |||||
CuO | CR | 10 ppm | 1 mg/ml | – | 60 | 90 | |
NB | 1 ppm | 40 ppm | – | 120 | 93 | ||
CuO | MB | 10 mg/l | 20 ppm | – | 135 | 92 | |
MR | – | 85 | |||||
CuO | MB | 1.0 × 10− 5 M | 20 mg | – | 120 | 87.37 | |
– | 79.11 | ||||||
– | 96.28 | ||||||
CuO | MB | 5 ppm | 30 mg | – | 90 | 52 | |
ZnO | 68 | ||||||
2% CuO-ZnO | 98 | ||||||
CuO nano bundles | MG | – | – | – | 70 | 98.20 | |
CuO/TiO2 | MB | 10.93 mg/L | 986.43 mg/l | 8.87 | 90 | 98.6 | |
Fe3O4 | 10.02 mg/L | 997.99 mg/L | 8.98 | 43.71 | 93.14 | ||
ZnO | MB | 15 mg/l | 50 | – | 60 | 100 | |
SnO2 | MB | – | – | – | 120 | 92 | |
ZnO | MB | – | – | – | 200 | 55 | |
Ag/ZnO | MB | – | – | – | 210 | 85 | |
ZnO | MB | 5 | 10 mg | 10 | 150 | 92 |
