Interfacial Engineering of Janus Nanofiltration Membranes Incorporating a PDA/PAA Interlayer for Enhanced Lithium‐Magnesium Separation
Efficient Li + /Mg 2+ separation remains a critical challenge in lithium extraction from salt lake brines. In this study, a Janus‐structured composite nanofiltration (NF) membrane was developed through interfacial regulation. A polyethersulfone (PES) substrate with a sponge‐finger transitional morphology was fi...