21. Examples of Element Sequestration by FeSm .
| comment | ref | |
|---|---|---|
| V(V) | reduced to V(III) | |
| V(IV) | incorporated into structure | |
| Cr(VI) | reduced to Cr(III) | − |
| Mn(II) | adsorbed (pH ≤ 7) | , |
| coprecipitated (pH > 7) | ||
| Co(II) | coprecipitated | |
| Ni(II) | coprecipitated | |
| exchange | , | |
| Cu(II) | coprecipitation | |
| exchange | − | |
| Zn(II) | coprecipitation | |
| As (III) | adsorption and coprecipitation | ,− |
| As(V) | adsorption and coprecipitation | ,− |
| Se(−II) | coprecipitation | |
| Se(IV) | adsorption | , |
| Se(VI) | adsorption | |
| Mo(VI) | adsorption | |
| Tc(VII) | reduced to Tc(IV) | |
| Cd(II) | exchange | ,, |
| coprecipitation | , | |
| surface reaction on oxidized surface | ||
| Sb(III) | adsorption and coprecipitation | , |
| Sn(II) | chemisorbed | |
| I | chemisorbed on oxidized surface | |
| Au(I) | reduction to Au0 | |
| Hg(II) | adsorption | − |
| coprecipitation | ,, | |
| exchange | ||
| Pb(II) | exchange | |
| U(VI) | reduced to U(IV) | ,− |
| Np(V) | reduced to Np(IV) | , |
| Pu(V) | reduced to Pu(III) |