2012•Advanced materials researchOpen access

Study on Compositions in Aqueous Phase of Hollow Fiber Composite Nanofiltration Membrane

Lei Wen, Wei Wang

Abstract

Hollow fiber composite nanofiltration (NF) membranes were prepared by interfacial polymerization method, with polysulfone (PSF) hollow fiber ultrafiltration membrane as base membrane, piperazine (PIP) as the aqueous phase monomer and trimesoyl chloride (TMC) as the organic phase monomer. The effects of aqueous phase composition on composite NF were discussed. The experimental results show that the optimum compositions in aqueous phase: 1wt% PIP, 0.05wt% MPDA, 1wt% TEA, 3wt% sulfamic acid. The best rejection to MgSO4 was 94.7%, and water ﬂux was 66.1L•m-2•h-1.

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Key concepts: Polysulfone, Nanofiltration, Interfacial polymerization, Ultrafiltration (renal), Aqueous solution, Membrane, Monomer, Materials science