Enhanced desalination using carboxylated carbon nanotube immobilized membranes

被引：69

作者：

Bhadra, Madhuleena ^{[1
]}

Roy, Sagar ^{[1
]}

Mitra, Somenath ^{[1
]}

机构：

[1] New Jersey Inst Technol, Dept Chem & Environm Sci, Newark, NJ 07102 USA

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2013年 / 120卷

关键词：

Desalination; Carbon nanotubes; Membranes; Membrane distillation; REVERSE-OSMOSIS DESALINATION; FUTURE-PROSPECTS; DISTILLATION; FABRICATION; NANOCOMPOSITE; POLARIZATION;

D O I：

10.1016/j.seppur.2013.10.020

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In carbon nanotube immobilized membrane (CNIM), the nanotubes serve as a sorbent that provides additional pathways for solute transport. In this paper we present that carboxylated nanotubes which are significantly more polar and can increase interactions with the water vapor in CNIM to improve desalination efficiency in membrane distillation (MD). The encapsulation of the nanotubes in PVDF prevented the carboxylated nanotubes from making the overall membrane more hydrophilic and thus retain its performance. Overall, desalination was consistently better with carboxylated nanotubes than with unfunctionalized ones with flux reaching as high as 19.2 kg/m(2) h in a sweep gas membrane distillation mode. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：373 / 377

页数：5

共 24 条

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