Table 2 EDS elemental analysis of the adsorbent before and after Orange II removal.
Element | Adsorbent | Adsorbent post-OII removal | |||
|---|---|---|---|---|---|
Atomic (%) | Weight (%) | Atomic (%) | Weight (%) | ||
Carbon | 55.5 | 46.5 | 22.8 | 46.5 | |
Nitrogen | 0.0 | 0.0 | 3.9 | 0.0 | |
Oxygen | 41.8 | 46.6 | 52.5 | 46.6 | |
Sodium | 0.0 | 0.1 | 11.6 | 0.1 | |
Magnesium | 0.3 | 0.5 | 0.0 | 0.5 | |
Phosphorus | 0.1 | 0.3 | 8.9 | 0.3 | |
Sulfur | 0.2 | 0.4 | 0.0 | 0.4 | |
Chlorine | 0.1 | 0.2 | n.d | 0.2 | |
Potassium | 2.0 | 5.4 | 0.3 | 5.4 | |
