Research Article
Adsorption of Cd (II) Using Chemically Modified Rice Husk: Characterization, Equilibrium, and Kinetic Studies
Table 2
Main functional groups in rice husk treated with NaOH before adsorption.
| | Wave number (cm-1) | Vibration mode | Intensity | Functional group | Functional group name |
| | 3334.31 | Tension | High | O-H | Hidroxyl | | 2917.91 | Tension | Low | C-H | Saturated | | 1635.06 | Tension | Low | C=C | Unsaturated | | 1027.09 | Tension | Strong | C-O | Alcohol | | 1027.09 | Tension | Strong | Si-O | Xiloxane |
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