Research Article
Adsorption of Cd (II) Using Chemically Modified Rice Husk: Characterization, Equilibrium, and Kinetic Studies
Table 7
Comparison of maximum adsorption capacity of several treated rice husks from different geographical regions and variable experimental conditions.
| NaOH concentration | Time of treatment (h) | Drying time (h) | Drying temperature (°C) | (mg/g) | Rice husk origin | References |
| 0.5 M | 4 | | 40°C | 20 | India (Asia) | [39] | 0.1 M | 24 | 24 | 80°C | 1.58 | China (Asia) | [40] | 0.013 M | 4 | | 45°C | 8.5 | Malaysia (Asia) | [37] | 2% | 4 | 24 | 60°C | | Malaysia (Asia) | [41] | 0.1 M | 1 | 48 | 80°C | 2.8 | China (Asia) | [38] | (1 : 1) | | | 50°C | 16 | Malaysia (Asia) | [42] | 0.3 M | 17 | 6 | 70°C | 11.06 | Perú (South America) | Present work |
|
|