Fluorine-free fabrication of durable superhydrophobic membranes for efficient oil–water separation (opens in new tab)

The increasing occurrence of marine oil spills and industrial oily wastewater discharge demands efficient and sustainable oil–water separation technologies. Herein, we report a fluorine-free and scalable strategy to fabricate superhydrophobic nonwoven membranes via a simple two-step dip-coating process. By grafting hexadecyltrimethoxysilane (HDTMS) onto viscose/polyester substrates followed by polydimethylsiloxane (PDMS) coating, the resulting membrane exhibits excellent superhydrophobicity, ...