Электронный каталог

Статья

Kravets, L.
Functionalization of PET Track-Etched Membranes with Electrospun PVDF Nanofibers for Hybrid Membranes Fabrication in Water Desalination / L.Kravets, I.Vinogradov, A.Rossouw, B.Gorberg, A.Nechaev, P.Apel // Separation and Purification Technology. – 2025. – Vol. 371. – P. 133395. – URL: https://doi.org/10.1016/j.seppur.2025.133395. – Bibliogr.: 71.

This study reports a method for fabricating hybrid membranes composed of a hydrophilic microporous substrate and a hydrophobic nanofibrous polymer layer deposited by electrospinning. Track-etched poly(ethylene terephthalate) membranes with varying porosities were employed as the hydrophilic substrates. A thin titanium layer was deposited onto these substrates via magnetron sputtering to enhance adhesion of the nanofibrous coating and simultaneously served as an electrode collector during electrospinning. Polyvinylidene fluoride was utilized as the polymer for electrospinning, forming a highly hydrophobic nanofiber layer with an average water contact angle of 142.2 *( 1.3&sup(o). The fabricated hybrid membranes were tested for desalination efficiency using air gap membrane distillation with an aqueous sodium chloride solution (26.5 g/L). Results demonstrate that combining a highly hydrophobic nanofibrous layer exhibiting a well-developed porous structure with a hydrophilic microporous substrate significantly enhances membrane distillation productivity. Furthermore, the developed hybrid membranes exhibit excellent separation selectivity in water desalination, achieving salt rejection coefficients ranging from 99.97 % to 99.99 % for membranes with nanofibrous layer densities between 20.7 *( 0.2 and 27.6 *( 0.2 g/m&sup(2)



Спец.(статьи,препринты) = С 44 б - Разделение химических элементов экстракционными и ионообменными методами
ОИЯИ = ОИЯИ (JINR)2025