Crosslinked cellulose thin film composite nanofiltration membranes with zero salt rejection

被引：65
作者：
Puspasari, Tiara [1 ]
Pradeep, Neelakanda [1 ]
Peinemann, Klaus-Viktor [1 ]
机构：
[1] King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia
来源：
JOURNAL OF MEMBRANE SCIENCE | 2015年 / 491卷
关键词：
Nanofiltration; Regenerated cellulose membrane; Trimethylsilyl cellulose; Zero NaCl rejection; Organic molecule separation; TRIMETHYLSILYL CELLULOSE; REGENERATED CELLULOSE; AQUEOUS-SOLUTION; BLEND MEMBRANES; IONIC LIQUIDS; RETENTION; GLUCOSE;
D O I：
10.1016/j.memsci.2015.05.002
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
We report a new synthetic route of fabricating regenerated cellulose nanofiltration membranes. The membranes are composite membranes with a thin selective layer of cellulose, which was prepared by regeneration of trimethylsilyl cellulose (a hydrophobic cellulose derivative) film followed by cross-linking. Filtration experiments using mixtures of sugar and sodium chloride showed that solutes above 300 Da were highly rejected whereas practically no rejection was observed for NaCl. This is a big advantage for a complete desalination as the existing commercial nanofiltration membranes typically exhibit NaCl rejection in the range of 30-60%. Membranes with zero NaCl rejection are required for recovery and purification applications in food, chemical and pharmaceutical industry. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：132 / 137
页数：6
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