Table 3 Chemical and phases composition of obtained complex substituted calcium phosphates after sorption and heating to 700 °C depending on both type of initial matrix and concentration of cesium ion in the solution
From: Immobilization of cesium from aqueous solution using nanoparticles of synthetic calcium phosphates
Samples index | Matrix for sorption | C(Cs+) in solution, mol L−1 | Elemental composition (wt%) | Phase composition | ||
|---|---|---|---|---|---|---|
Cs | Ca | P | ||||
1 | I | 0.05 | 0.51 | 36.36 | 20.69 | α-Ca3(PO4)2 + Apatite |
2 | 0.1 | 1.55 | 36.09 | 21.82 | ||
3 | 0.25 | 4.11 | 41.44 | 22.91 | ||
4 | II | 0.05 | 0.61 | 38.36 | 21.39 | Apatite |
5 | 0.1 | 1.31 | 41.87 | 22.93 | ||
6 | 0.25 | 2.71 | 41.68 | 21.14 | ||
7 | III | 0.05 | 0.75 | 41.97 | 22.04 | Whitlockite |
8 | 0.1 | 2.05 | 41.75 | 21.86 | ||
9 | 0.25 | 4.94 | 41.20 | 21.36 | ||
10 | IV | 0.05 | 0.64 | 44.95 | 22.87 | Apatite |
11 | 0.1 | 1.43 | 43.90 | 21.67 | ||
12 | 0.25 | 3.55 | 45.90 | 21.17 | ||