Research Article
Adsorption Ability for Toxic Chromium (VI) Ions in Aqueous Solution of Some Modified Oyster Shell Types
Table 7
Parameters for plotting Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich adsorption isotherms of Cr (VI) ions using oyster shell samples.
| | No. | C0 (mg/L) | Ce (mg/L) | 1/Ce | Log Ce | Ln Ce | Qe (mg/g) | 1/Qe | Log Qe | Ln Qe | |
| | 1 | 3 | 1.35 | 0.74 | 0.13 | 0.30 | 1.65 | 0.61 | 0.22 | 0.50 | 1.89 | | 2 | 7 | 3.12 | 0.32 | 0.49 | 1.14 | 3.88 | 0.26 | 0.59 | 1.36 | 0.47 | | 3 | 8 | 3.65 | 0.27 | 0.56 | 1.29 | 4.35 | 0.23 | 0.64 | 1.47 | 0.36 | | 4 | 10 | 4.8 | 0.21 | 0.68 | 1.57 | 5.20 | 0.19 | 0.72 | 1.65 | 0.22 | | 5 | 15 | 6.23 | 0.16 | 0.79 | 1.83 | 8.77 | 0.11 | 0.94 | 2.17 | 0.14 |
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