This study focuses on an eco-friendly fabrication of a porous superhydrophobic membrane for oil/water separation. The membrane, made from a nanosilica-containing poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) ink, was prepared through a simple 3D printing technique. The as-prepared membrane displayed anti-wetting property and superoleophilicity, allowing oil to pass, but not water, through its openings. Such surface characteristics are mainly attributed to the synergistic effect of hierarchical surface roughness brought by the presence of silica nanoparticles and low surface energy due to PVDF-HFP. Combined with mechanical robustness and high thermal stability, the nanosilica-filled fluoropolymer membrane is practically useful in solving industrial problems concerning water contamination and oil spill.

Additive manufacturing of a superhydrophobic/superoleophilic fluoropolymer nanocomposite membrane for oil/water separation

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.