Randomized trial reveals enhanced molecular separation in wastewater through a novel Janus membrane, indicating improved efficiency.
Key Points
The study aims to develop a novel Janus membrane for enhanced molecular separation, specifically targeting the trade-off between selectivity and permeability in membrane contactors.
Engineered a two-step interfacial polymerization strategy to create a dense Janus membrane.
Utilized stevioside for forming a hydrophilic layer on a polyvinylidene fluoride substrate.
Applied electro-assisted ultrasonic spray to form a precise dense polyamide layer.
Achieved phenol transmembrane flux of 26.3 g m -2 h -1, a 67.5% increase compared to the PVDF substrate.
Demonstrated significant salt rejection with negligible phenol flux reduction (∼1.0%) during long-term operation.
Identified scaling resistance from kinetic inhibition, sub-nano network selectivity, and high interfacial energy.