Effect of CO2-laser irradiation on properties and performance of thin-film composite polyamide reverse osmosis membrane

Jahangiri, Foad; Mousavi, Seyyed Abbas; Farhadi, Fatola; Vatanpour, Vahid; Sabzi, Behnam; Chenari, Z.

doi:10.1007/s11814-015-0193-9

Cited by 9 publications

(1 citation statement)

References 39 publications

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where F represents flux, V is the permeate volume, t represents time, and A is the effective area of membrane. A salinity meter (Traceable VWR, ISO 17025 Accredited) test was conducted to record the salt rejection in permeate and feed solutions [ 43 , 44 ].…”

Section: Methodsmentioning

confidence: 99%

Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination

Ali

Raza

Mehmood

et al. 2020

IJMS

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Fresh and clean water is consistently depleting and becoming a serious problem with rapid increases in population, so seawater desalination technology has captured global attention. For an efficient desalination process, this work proposes a novel, nanofibrous, thin-film composite membrane (NF-TFC) based on the deposition of the nanofibrous active layer of a blend of chitosan (CS) and poly (vinylpyrrolidone) (PVP) crosslinked with maleic acid on a 3-triethoxysilylpropylamine functionalized cellulose acetate substrate. FTIR analysis demonstrated the development of chemical and physical interactions and confirmed the incorporation of functional groups present in the NF-TFC. Scanning electron microscopy (SEM) micrographs depict the fibrous structure of the active layers. The reverse osmosis (RO) desalination characteristics of NF-TFC membranes are elevated by increasing the concentration of the crosslinker in a CS/PVP blend. Cellulose acetate (CA)-S4 attained an optimal salt rejection of 98.3% and permeation flux of 42.9 L/m2h, suggesting that the NF-TFC membranes could be favorable for seawater desalination.

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Section: Methodsmentioning

confidence: 99%