Research Article
Adsorption of Pb(II) from Water onto ZnO, TiO2, and Al2O3: Process Study, Adsorption Behaviour, and Thermodynamics
Figure 8
SEM micrograph: (a) unloaded ZnO at 25000x magnification, (b) loaded ZnO at 25000x magnification, (c) unloaded TiO2 at 25000x magnification, (d) loaded TiO2 at 25000x magnification, (e) unloaded Al2O3 at 7000x magnification, and (f) loaded Al2O3 at 7000x magnification.
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |
| (f) |