Metals Ions Removal by Polymer Membranes of Different Porosity

Table 1

Porosity (ε), equilibrium water content (EWC), and contact angle of investigated membranes.

Membrane	ε (%)	EWC (%)	Contact angle
			Top	Bottom
PES-18 PVP-1	50.45	75.16	76.0±5.10	71.2±4.86
PES-18 PVP-2	45.18	76.06	76.1±3.45	71.6±2.16
PES-18 PVP-3	47.39	76.50	76.9±3.25	71.7±1.96
PES-18 PVP-4	65.90	78.67	77.2±3.58	71.8±1.62