膜科学与技术

涂层法制备聚醚砜中空纤维纳滤膜及应用

作者：潘成¹，王雨¹李雪梅¹，何涛¹，²

单位： 1南京工业大学化学化工学院,材料化学工程国家重点实验室,南京210009

关键词：中空纤维纳滤膜;涂层法;磺化聚醚醚酮;染料废水

出版年,卷(期):页码： 2012,32(1):18-22

摘要：

以磺化聚醚醚酮（SPEEK）为内涂层制备了聚醚砜中空纤维纳滤膜,研究了溶剂、SPEEK磺化度、浓度及后处理温度等参数对膜性能的影响.结果表明,以SPEEK（磺化度0.55）的1%甲醇溶液为涂层溶液,经过30℃后处理6小时制得纳滤膜具有较高的通量和离子选择性.其应用于含盐染料废水分离.结果显示该膜完全截留小分子染料,但是透过单价盐类.该膜为单价/多价盐离子的分离和含盐染料废水的处理提供了一种新的可能性.

A hollow fiber nanofiltration membrane is prepared based on coating a polyethersulfone support with sulfonated poly(ether ether ketone)(SPEEK). To optimize the nanofiltration properties of the composite membrane, several parameters were investigated including sulfonation degree, solvents, coating concentration, and post-processing temperature. It was found that for SPEEK-48 when using methanol as a solvent at the sulfonation degree and concentration of 0.55 and 1% gives satisfactory NF membranes. Treatment of dye waste water with this membrane demonstrated that the membrane can de-color the water while allowing the passing through of salts. This result is interesting in that it provides a new means for treatment of dye waste water and water systems alike.

潘成（1986－）,男,江苏丹阳人,硕士研究生,主要从事有机高分子膜制备和应用的研究.( pancheng_976@163.com)

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