Effect of amine salt surfactants on the formation and performance of thin film composite poly ( piperazine-amide ) nanofiltration membranes

Content Provider	Semantic Scholar
Author	Xiang, Jun Xie, Zongli Hoang, Manh Tuan Zhang, Kaisong
Copyright Year	2012
Abstract	This paper presents a systematic analysis the effec t o amine salt surfactant added in aqueous phase using interfacial polymerization (IP) to fabr icate nanofiltration membrane. Four types of amine salts with different molecular structures, molecular weights (MW) and charges, including tetraethylammonium chloride (TEAC), tetra butylammonium bromide (TBAB), camphorsulfonic acid triethylamine salt (CAS-TEA), 1-butyl-3-methylimidazolium chloride (BMIMCL), were incorporated into piperazine (PIP) s olution during interfacial polymerization with trimesoyl chloride (TMC). The f ormed thin film composite (TFC) piperazine-amide polymer was supported on a polyeth ersulfone (PES) ultrafiltation membrane (UF). The membranes surfaces were characte rized by scanning electronic microscopy (SEM), attenuated total reflection fouri er transform infrared spectroscopy (ATR-FTIR), and X-ray photoelectron spectroscopy (X PS). The flux and NaCl rejection were also evaluated. The addition of amine salt containi ng larger steric configuration cationic amine group in aqueous solution, resulted in a TFC membrane with high performance, and the amine salt would not combined into the polymer, b ing easily washed away.
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Language	English
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Content Type	Text
Resource Type	Article