Table 2.
Zeta potentials of each NiO-NP and CeO2-NP/dispersion media combination.
| Medium Type | NiO Zeta Potential (mV) | CeO2 Zeta Potential (mV) |
|---|---|---|
| Pluronics | −1.86 | −1.40 |
| PBS | −0.06 | −0.29 |
| Survanta | −0.04 | −0.51 |
| DM | −0.10 | −0.31 |
The surface charge of the NiO-NP and CeO2-NP in each dispersion media was analyzed using a Malvern Zetasizer Nano ZS instrument (Malvern Instruments Inc., UK). The electrophoretic mobility of the nanoparticles in each dispersion media was converted into the zeta potential by utilizing the Helmholtz-Smoluchowski equation.