Research Article
Effect of Alkali Treatment of Wheat Straw on Adsorption of Cu(II) under Acidic Condition
Table 4
Comparison of adsorption capacities of wheat straw for Cu(II) removal.
| Modification | pH | (mg/g) | Reference |
| 4% NaOH | 5.0 | 10.05 | This study | 10% HNO3 and 1 N NaOH | 6.0 | 11.43 | [36] | Hydrochars and 2 N KOH | 5.0 | 11.82 | [35] | Esterification | — | 39.17 | [37] | — | 5.0 | 7.05 | [38] | — | 4.5 | 5.0 | [39] |
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