The impact of hydrophobic coating on the performance of carbon nanotube bucky-paper membranes in membrane distillation

被引：71

作者：

Dumee, Ludovic ^{[1
,2
]}

Campbell, Jos L. ^{[3
]}

Sears, Kallista ^{[1
]}

Schuetz, Juerg ^{[1
]}

Finn, Niall ^{[1
]}

Duke, Mikel ^{[2
]}

Gray, Stephen ^{[2
]}

机构：

[1] CSIRO Mat Sci & Engn, Clayton, Vic 3168, Australia

[2] Victoria Univ, Melbourne, Vic 8001, Australia

[3] RMIT Univ, Sch Appl Sci, Adv Mat & Ind Chem Grp, Melbourne, Vic, Australia

来源：

DESALINATION | 2011年 / 283卷

关键词：

Carbon nanotube bucky-paper; Poly(tetra fluoro ethylene) composite; Membrane distillation; Desalination; POLY(VINYL ALCOHOL); MASS-TRANSPORT; PERVAPORATION; FABRICATION; WATER;

D O I：

10.1016/j.desal.2011.02.046

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Self-supporting bucky-papers membranes were processed from chemical vapour deposition grown carbon nanotubes and coated with a thin layer of poly(tetra-fluoro-ethylene) (PTFE) to enhance their hydrophobicity and improve their mechanical stability over time, without drastically changing their average pore size and porosity. Contact angles and bubble point pressure were respectively increased by 23% and 28%. After coating the membranes were tested in a direct contact membrane distillation setup at various feed temperatures with 35 g/L NaCl feed solution and coated samples exhibited improved lifespan and water vapour permeability at salt rejection higher than 99%. The bucky-paper membranes were also compared with commercial PTFE membranes of similar properties. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：64 / 67

页数：4

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