Research Article
Effects of Cu(II) on the Adsorption Behaviors of Cr(III) and Cr(VI) onto Kaolin
Table 5
value of Cu(II) on Cr(III) and Cr(VI) adsorption onto kaolin under different pH values.
| | (L·mg−1) | pH | | 2.0 | 3.0 | 4.0 | 5.0 | 6.0 | 7.0 |
| | Cr(III) | 14.56 | 19.41 | 24.55 | 27.87 | 41.26 | 46.68 | | Cr(III)-Cu(II) | 23.30 | 40.84 | 45.08 | 49.37 | 64.50 | 61.84 |
| | Cr(VI) | 110.19 | 138.92 | 250.97 | 256.28 | 255.83 | 171.43 | | Cr(VI)-Cu(II) | 99.65 | 46.78 | 15.79 | 35.42 | 40.81 | 82.98 |
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