Dual-Nozzle Electrospinning for Janus Membranes in Membrane Distillation of Highly Saline and Oil-Contaminated Waters.

ABSTRACT: Electrospun nanofibrous membranes are highly valued for membrane distillation (MD) due to their inherent porosity and tunable structure. This study introduces a novel dual-nozzle electrospinning method to fabricate a multilayered Janus membrane, combining an omniphobic layer of PVDF fibers and fluorinated TiO₂-PVDF microclusters with a hydrophilic layer of hydrolyzed PMA fibers. The resulting membrane demonstrated exceptional performance and durability. In a 21 h MD operation against oily saline solutions, it retained 80% of its initial flux while producing high-purity water (conductivity <5 μS/cm). Notably, the membrane exhibited complete underwater oil repellence, preventing fouling from oil droplet adhesion. Furthermore, in a 7 h test with highly saline feed, the membrane mai

SUBMITTER: Lobregas MO 

PROVIDER: S-EPMC12508924 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature