Table 2.
Comparison of CV adsorption capacities using some related adsorbents.
| Adsorbents | Removal capacity (mg/g) | Removal efficiency (%) | Optimum adsorption conditions | Ref |
|---|---|---|---|---|
| Au@rGO | 55.9 | 99 | The initial concentration of CV dye is 10 mg/L, pH = 10, the adsorbent dosage is 40 mg, T = 298 K and the equilibrium time is 30 min | This work |
| GO | 32.12 | 94.86 | The initial concentration of CV dye is 50 mg/l, with 0.1 g/L adsorbent dosage and 200 mg/L adsorbate content at T = 303 K and the contact time is 60 min | 71 |
| Graphite | 33.48 | 93.25 | ||
| Graphene quantum dot | 34.46 | 99.10 | ||
| Sugarcane bagasse and calcium oxide with ammonium hydrogen carbonate composite | 293.02 | 97.67 | The adsorbent dose is 3.33 mg/mL, pH 9.0, at T = 313 K and initial dye concentration 1000 mg/L and teq = 80 min | 72 |
| Phosphorus-doped carbon composite | 1123 | 97 | The initial concentration of CV and MB dyes are 1200 and 914 g/l, respectively, pH = 8, T = 298 and teq = 24 h | 73 |
| Pumice | 6.99 | 86.68 | initial dye concentration of 100 mg/L, pH of 6.5, T = 298 K, contact time of 150 min, adsorbent dosage of 0.5 g and teq = 150 and 120 min. for MG and CV, respectively | 74 |
| Montmorillonite-filled sodium alginate/gelatin | 1000 | 92.1 | The initial concentration of CV dye is 20 mg/L, adsorbent dose. Is 0.025 g/50 mL, pH = 7, a temperature of 25 °C and teq = 120 min | 75 |
| Binary g-4/ZnV2O4 nanocomposite | 384.61 | 99.67 | Initial concentration of CV dye is 20.048 ppm, adsorbent dosage of 19.776 mg, contact time of 59.20 min, and pH of 8 and teq = 59.2 min | 76 |
| Modified rice husk | 90.02 | 96.16 | Initial concentration of CV dye is 50 mg/L, adsorbent dose of 0.025 g, agitation speed of 190 rpm, T = 298 K, pH = 10 and teq = 70 min | 77 |
| Multiwalled carbon nanotubes | 228.3 | 96 | Initial concentration for both dyes is 15 mg/L, T = 298 k, adsorbent dos = 10 mg/30 mL and teq = 120 min | 78 |