Separations: Materials, Devices, and Processes

Dynamic layer-by-layer self-assembly of organic–inorganic composite hollow fiber membranes

  1. Naixin Wang1,
  2. Guojun Zhang1,*,
  3. Shulan Ji1,
  4. Yiqun Fan2

Article first published online: 14 DEC 2011

DOI: 10.1002/aic.13707

Issue

AIChE Journal

AIChE Journal

Volume 58, Issue 10, pages 3176–3182, October 2012

Additional Information

How to Cite

Wang, N., Zhang, G., Ji, S. and Fan, Y. (2012), Dynamic layer-by-layer self-assembly of organic–inorganic composite hollow fiber membranes. AIChE J., 58: 3176–3182. doi: 10.1002/aic.13707

Author Information

  1. 1

    Center for Membrane Technology, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, P.R. China

  2. 2

    State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China

*Center for Membrane Technology, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, P.R. China

Publication History

  1. Issue published online: 10 SEP 2012
  2. Article first published online: 14 DEC 2011
  3. Accepted manuscript online: 21 NOV 2011 10:48AM EST
  4. Manuscript Revised: 21 OCT 2011
  5. Manuscript Received: 3 AUG 2011

Funded by

  • National Basic Research Program of China. Grant Number: 2009CB623404
  • National Natural Science Foundation of China. Grant Number: 20806001
  • Scientific Research Common Program of Beijing Municipal Commission of Education. Grant Number: KM201010005016

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article (HTML) Get PDF (439K)

Keywords:

  • organic–inorganic composite membrane;
  • hollow fiber;
  • layer-by-layer;
  • self-assembly;
  • pervaporation

Abstract

Multilayer membranes constructed layer-by-layer (LbL) is finding increasing importance in many separation applications. The efficient construction of LbL multilayer on to hollow fiber substrates may offer many new opportunities for industrial applications. An organic–inorganic composite hollow fiber membrane has been developed using a dynamic LbL self-assembly. This poly(acrylic acid)/poly(ethyleneimine) multilayer was dynamically assembled onto the inner surfaces of ceramic hollow fiber porous substrates pretreated by Dynasylan Ameo silane coupling agents. The hollow fibers were subsequently heat crosslinked to obtain stable permselective membranes. The formation of multilayers on the hollow fibers was characterized with a SEM, EDX, an electrokinetic analyzer and IR spectra. The effects of layer number, feed temperature and water content in the feed on the pervaporation performance have been investigated. To the best of our knowledge, this is the first report of LbL assembly of polymer building blocks onto ceramic hollow fiber porous substrates. © 2011 American Institute of Chemical Engineers AIChE J, 58: 3176–3182, 2012

View Full Article (HTML) Get PDF (439K)