Nanofiltration membranes typically have a pore size between 1 to 5 nm and is widely used for water softening, organic bio active substances and dechlorination, purification, concentration, wastewater decoloration.
Zhang, H., Zhang, H., Li, X., Mai, Z. & Zhang, J.
Nanofiltration (NF)
membranes: the next generation separators for all vanadium redox flow batteries (VRBs)?