Improved microfiltration and bacteria removal performance of polyethersulfone membranes prepared by modified vapor-induced phase separation
Polymers for Advanced Technologies, ISSN: 1099-1581, Vol: 29, Issue: 9, Page: 2420-2439
2018
- 17Citations
- 18Captures
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Article Description
Polyethersulfone (PES) microfiltration membranes were fabricated by a combined vapor-induced phase separation and wet phase separation method. The effect of different non-solvent additives in casting solution, ie, acetone, diethylene glycol, and triethylene glycol (TEG) was investigated on the membrane morphology and performance. Scanning electron microscopy images showed that the membrane containing TEG additive had a skinless symmetric structure with well interconnected pores. The permeability of the PES/PVP/TEG membranes increased by decreasing PES and TEG and increasing PVP concentration. Bacteria removal performance of the prepared membranes was investigated by the filtration of E. coli suspension. The membrane made from casting solution containing 15 wt.% PES, 16 wt.% PVP, and 20wt.% TEG showed a pure water flux of ~ 5370 L/m h at low transmembrane pressure of 10 psi and 100% bacteria removal efficiency. The results of in vitro cytotoxicity test and cell viability assay showed non-toxic nature of the prepared membranes.
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