Table 4 Zeta potential of the NPs.
From: Layered double hydroxides in nanofiltration as a new approach to nitrate removal
NPs type | Measured value (mV) | pH |
|---|---|---|
Mg–Al LDH | + 18.5 | 7.0 |
Ni–Fe LDH | + 55.5 | 5.0 |
Ni–Fe LDH | + 28.2 | 7.0 |
Ni–Fe LDH | − 29.9 | 9.0 |
Mn-impregnated Zn–Al LDH | − 2.5 | 5.0 |
Mn-impregnated Zn–Al LDH | − 3.8 | 9.0 |
