Table 2.
Results from Calculations Based Upon DLVO and the Sphere-Plate Assumption for MoS2-Li Nanoparticles and Quartz Collectors
| IS (mM KCl) | Zeta potential of MoS2 (mV) | Zeta potential of quartz (mV) | 1o energy barrier (kT) | 1oenergy barrier separation distance (nm) | 2omin depth (kT) | 2omin separation distance (nm) | Diametera(nm) | EPMb(10−8 m2[V·s]) |
|---|---|---|---|---|---|---|---|---|
| 1 | −52.4±3.2 | −28.6±2.0 | 260.4 | 2.5 | −0.018 | 109.5 | 338.5±9.6 | −4.1±0.3 |
| 10 | −50.7±1.7 | −13.6±0.5 | 52.8 | 2.5 | −0.32 | 24 | 342.2±4.9 | −4.0±0.1 |
| 31.6 | −41.7±1.0 | −11.3±1.4 | 97.6 | 2.0 | −5.7 | 10 | 1512.5±210.8 | −3.3±0.1 |
a
Average hydrodynamic diameter values for MoS2-Li were experimentally recorded and were used in the Derjaguin-Landau-Verwey-Overbeek (DLVO) calculations.
b
Electrophoretic mobility (EPM) values for MoS2-Li were used to calculate zeta potentials through the Smoluchowski equation (Elimelech, 1995).