A new functionalization strategy for oil/water separation membranes

被引：87
作者：
Maguire-Boyle, Samuel J.
Barron, Andrew R. [1 ]
机构：
[1] Rice Univ, Richard E Smalley Inst Nanoscale Sci & Technol, Dept Chem, Houston, TX 77005 USA
来源：
JOURNAL OF MEMBRANE SCIENCE | 2011年 / 382卷 / 1-2期
关键词：
Ceramic; Nomex; Alumina; Membrane; Nanoparticle; Oil; Water; CARBOXYLATE-ALUMOXANE NANOPARTICLES; ULTRAFILTRATION MEMBRANES; CERAMIC MEMBRANES; SUBSTITUTED ALUMOXANES; ALUMINA; PRECURSORS; EMULSIONS; MINERALS; BOEHMITE; POLYMER;
D O I：
10.1016/j.memsci.2011.07.046
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The fabrication of surface functionalized alumina fabric composite membranes using hydrophilic cysteic acid surface stabilized alumina nanoparticles (alumoxanes) have been investigated. Contact angle measurements for a range of carboxylic acids functionalized onto alumina coated silicon wafers was investigated to determine the functionalization that results in the most hydrophilic surface. Highly porous Nomex (R) fabric was utilized as a membrane support for an alumoxane nanoparticle derived membrane filter. The flux differentiation of heavy hydrocarbons from water, and the separation of oil/water emulsions were studied. Coating techniques utilizing pH control were investigated. Retention coefficients and flux values indicate that surface chemistry of the fabric may be altered by coating with chemically functionalized alumina nanoparticles to provide selective flow of water versus hydrocarbons. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：107 / 115
页数：9
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