Table 5. Experimental Data of Heavy Metal Ion (Label Forms) Removal from Real Water Samples by the Obtained Mesoporous Adsorbentsa.
| added (μg/L) | found (μg/L) |
||||||
|---|---|---|---|---|---|---|---|
| sample | metal ion | Cb, μg/L | TEOS/EDTA | NaSi/EDTA/NH2 | NaSi/NH2 | TEOS/QAS | |
| artesian drinking water | Cd(II) | 0.3 | 0 | 0.01 | 0.10 | 0.05 | 0.3 |
| 10 | 5.83 | 5.77 | 4.18 | 3.79 | |||
| Cu(II) | 6.0 | 0 | 0.8 | 0.9 | 1.8 | 5.7 | |
| 10 | 2.8 | 3.7 | 6.5 | 9.4 | |||
| Pb(II) | 0.1 | 0 | 0.01 | 0.05 | 0.07 | 0.1 | |
| 10 | 5.56 | 6.15 | 5.67 | 5.5 | |||
| Mn(total) | 3.0 | 0 | 1.8 | 2.0 | 2.9 | 1.2 | |
| 10 | 2.8 | 3.0 | 4.9 | 6.2 | |||
| Cr(total) | 4.0 | 0 | 0.4 | 1.7 | 3.4 | 2.2 | |
| 10 | 2.4 | 2.9 | 5.4 | 7.2 | |||
| river water (Dnipro, Ukraine) | Cd(II) | 1.9 | 0 | 1.33 | 1.55 | 0.01 | 1.85 |
| 10 | 0.33 | 0.65 | 3.01 | 1.93 | |||
| Cu(II) | 5.0 | 0 | 1.1 | 1.1 | 0.61 | 4.92 | |
| 10 | 1.9 | 1.1 | 3.61 | 8.56 | |||
| Pb(II) | 2.0 | 0 | 0.87 | 0.82 | 0.98 | 2.0 | |
| 10 | 1.07 | 1.82 | 5.98 | 11.0 | |||
| Mn(total) | 13.0 | 0 | 5.1 | 6.6 | 7.9 | 7.4 | |
| 10 | 10.1 | 9.5 | 11.8 | 16.4 | |||
| Cr(total) | 1.0 | 0 | 0.12 | 0.21 | 0.08 | 0.06 | |
| 10 | 1.89 | 6.21 | 8.18 | 4.89 | |||
| lake water (Virlytcya, Kyiv, Ukraine) | Cd(II) | 5.0 | 0 | 3.43 | 3.13 | 3.89 | 3.48 |
| 10 | 1.11 | 4.78 | 6.19 | 10.76 | |||
| Cu(II) | 9.0 | 0 | 2.1 | 1.3 | 1.93 | 8.3 | |
| 10 | 2.34 | 4.24 | 5.5 | 12.8 | |||
| Pb(II) | 9.0 | 0 | 5.67 | 4.15 | 5.85 | 8.15 | |
| 10 | 5.01 | 9.65 | 9.15 | 4.03 | |||
| Mn(total) | 18.0 | 0 | 8.6 | 7.9 | 7.9 | 11.9 | |
| 10 | 2.9 | 5.78 | 9.0 | 10.76 | |||
| Cr(total) | 2.0 | 0 | 0.12 | 0.11 | 0.11 | 1.01 | |
| 10 | 1.89 | 1.97 | 5.34 | 7.74 | |||
a
The analyzed water volume was 250 mL, pH 7.0–7.5, adsorbent dose 100 mg, time contact 12 h.
b
Determined by the ICP-OES method with the standard procedure.