Collagen fiber membrane-derived chemically and mechanically durable superhydrophobic membrane for high-performance emulsion separation

Abstract Developing high-performance separation membrane with good durability is a highly desired while challenging issue. Herein, we reported the successful fabrication of chemically and mechanically durable superhydrophobic that was prepared by embedding UiO-66 as size-sieving sites within supramolecular fiber structure collagen (CFM), followed polydimethylsiloxane (PDMS) coating. The as-prepared CFM/UiO-66(12)/PDMS featured capillary effect-enhanced flux homogeneous porous channels guaranteed high efficiency. When utilized double-layer membranes, this new type composite membranes separated various surfactant stabilized water-in-oil microemulsions nanoemulsions, efficiency up to 99.993 % 973.3 L m − 2 h 1 . Compared commercial polytetrafluoro ethylene (PTFE) membrane, advantage in evident, which exhibited one order magnitude higher than PTFE membrane. acid-alkali tolerant, UV-aging resistant reusable for emulsion separation. Notably, against strong mechanical abrasion, still capable separating diverse emulsions after abrasion sandpaper assembled membranes. We anticipate combination CFM metal organic frameworks (MOFs) an effective strategy fabricating chemical durability. Graphical