Nanofiltration (NF) is a membrane filtration process that operates at a molecular level, typically featuring pore sizes in the range of 1-10 nanometers. It is positioned between ultrafiltration and reverse osmosis in terms of the size of particles it can separate. NF membranes are highly effective in selectively separating ions and molecules based on size and charge, making them valuable in various applications including water purification, pharmaceutical production, and most importantly, in the field of catalysis.
