Chemically stable membrane sieves molecules from multiple solvents

An image showing the freestanding nanofilm held by a 4 cm diameter steel ring

Source: © Yi Li/KU Leuven

Janus pore design and solvent-resistant support behind efficient organic solvent nanofiltration system

Researchers have created filtration membranes capable of withstanding strongly acidic or basic environments for 15 days. The membranes have high permeability for both polar and non-polar solvents, and could be adapted for solvent recycling, purifying pharmaceuticals and oil refineries.