enhancement of antifouling and hydrodynamic permeability properties of polyethersulfone membranes using polydopamine as an additive

In this work, the polyethersulfone/polydopamine (pes/pda) blend membrane via non-solvent induced phase separation (nips) technique was produced to improve the hydrodynamic permeability, surface hydrophilicity, and antifouling properties of polyethersulfone membranes# at first, pda was prepared based on the oxidant-induced dopamine polymerization in a solvent medium# subsequently, the synthesized pda was used as an additive to fabricate pes/pda blend membrane# the characteristic of the unmodified and modified pes membranes was investigated, and the results showed that the pes/pda membrane has low irreversible fouling and high flux recovery compared with that of the unmodified pes membrane# the pure water flux and antifouling properties of the pes membranes are both enhanced after blending modification as evaluated by oil/water filtration experiments# moreover, the pes/pda blend membrane has satisfying long-term stability in an aqueous environment#