The data of the porosity of the Celgard 2400 and PSA, PAN and PSA/PAN/PSA composite nanofibrous membranes.

Samples	Average thickness (cm)	Porosity (%)	Uptake (%)
Celgard	0.003	33.5	95.3
PSA	0.003	92.7	1290
PP4P	0.003	81.78	1150
PP6P	0.002	87.74	921
PP8P	0.003	62.57	503
PAN	0.002	98.22	161.5