Table 3.
Self-diffusion coefficient of ions in ZM-001 and ZM-110 membranes and in the electrolyte solution.
| ZM-001 | ZM-110 | |||||||
|---|---|---|---|---|---|---|---|---|
| Inside | Outside | Inside | Outside | |||||
| System | Mn+ | K+ | Mn+ | K+ | Mn+ | K+ | Mn+ | K+ |
| K+/NH4+ | −1.1 × 10−17 | 1.9 × 10−14 | 5.76 × 10−9 | 7.85 × 10−9 | 1.55 × 10−15 | 3.35 × 10−14 | 4.96 × 10−9 | 6.18 × 10−9 |
| K+/Li+ | −3.1 × 10−16 | 3.37 × 10−14 | 4.81 × 10−9 | 9.46 × 10−9 | −2.3 × 10−16 | 5.39 × 10−15 | 3.57 × 10−9 | 7.78 × 10−9 |
| K+/Na+ | −3 × 10−15 | −2.1 × 10−16 | 6.66 × 10−9 | 8.78 × 10−9 | 1.2 × 10−14 | 1.23 × 10−13 | 5.51 × 10−9 | 7.37 × 10−9 |
| K+/K+ | 1.18 × 10−14 | 1.18 × 10−14 | 7.11 × 10−9 | 7.11 × 10−9 | 1.41 × 10−14 | 1.41 × 10−14 | 5.95 × 10−9 | 5.95 × 10−9 |
| K+/Rb+ | 2.61 × 10−14 | 1.16 × 10−14 | 6.37 × 10−9 | 7.16 × 10−9 | 1.57 × 10−14 | 2.4 × 10−14 | 4.67 × 10−9 | 4.37 × 10−9 |
| K+/Cs+ | −3.9 × 10−15 | 3.18 × 10−15 | 3.62 × 10−9 | 5.2 × 10−9 | −5.6 × 10−16 | 3.84 × 10−14 | 3.05 × 10−9 | 3.78 × 10−9 |
| K+/Mg2+ | 4.82 × 10−16 | 5.22 × 10−15 | 3.41 × 10−9 | 7.47 × 10−9 | 9.01 × 10−16 | 2.28 × 10−14 | 1.78 × 10−9 | 7.14 × 10−9 |
| K+/Ca2+ | 8.46 × 10−16 | 1.07 × 10−14 | 3.24 × 10−9 | 6.28 × 10−9 | 2.49 × 10−14 | 2.06 × 10−14 | 1.85 × 10−9 | 4.1 × 10−9 |