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Ion repelling effect of nanopores in a hydrophobic zeolite

Published online by Cambridge University Press:  26 April 2011

Brian J. Chow ,
Weiyi Lu ,
Aijie Han ,
Hyuck Lim  and
Yu Qiao
Brian J. Chow
Affiliation:
Department of Structural Engineering, University of California—San Diego, La Jolla, California 92093-0085
Weiyi Lu
Affiliation:
Department of Structural Engineering, University of California—San Diego, La Jolla, California 92093-0085
Aijie Han
Affiliation:
Department of Chemistry, University of Texas—Pan American, Edinburg, Texas 78539
Hyuck Lim
Affiliation:
Program of Materials Science and Engineering, University of California—San Diego, La Jolla, California 92093
Yu Qiao*
Affiliation:
Department of Structural Engineering, University of California—San Diego, La Jolla, California 92093-0085
*
a)Address all correspondence to this author. e-mail: yqiao@ucsd.edu
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Abstract

By measuring the ion concentration in a pressure-induced infiltration experiment on a hydrophobic Zeolite Socony Mobil-5, it is found that the nanopore wall has a strong ion repelling effect. When the initial ion concentration is relatively low, only water molecules can enter the nanopores. Once the initial ion concentration is relatively high, ions can infiltrate into the nanopores, but the effective ion concentration of the confined liquid is much lower.

Keywords

AbsorptionNanoscaleFluidics

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Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 9 , 14 May 2011 , pp. 1164 - 1167
Copyright
Copyright © Materials Research Society 2011

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