TY - JOUR
T1 - Donnan dialysis with Nafion® membranes
T2 - Application of a rotating diffusion cell
AU - Osseo-Asare, K.
AU - Xue, T.
N1 - Funding Information:
This research was funded in part by the National Science Foundation under Grant No. RII-8311763. Support of the Pennsylvania Mining and Mineral Resources Research Institute is also gratefully acknowledged. The authors thank J.S. Trent for his encouragement of this research. Discussions with W. J. Al-bery, R.A. Choudhery, D.B. Dreisinger, and W.C. Cooper on t~he RDC technique are gratefully acknowledged. Thanks also go to W. Kling for his assistance in constructing the RDC and to L. Peterson and J.D. Spotts for implementing the Computer interfacing.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1989
Y1 - 1989
N2 - The conventional devices (e.g., stirred and tubular dializers) employed in Donnan dialysis experiments do not permit precise description of the associated hydrodynamics. Consequently, detailed analysis of the transport mechanism (e.g., decoupling of boundary layer and membrane diffusion effects) is often difficult. In an effort to alleviate this difficulty, the rotating diffusion cell (RDC) introduced by Albery et al. (J. Chem. Soc., Faraday Trans. I, 72 (1976) 1618-1624) has been adapted to the study of Donnan dialysis. The porous filter used in the original design has been replaced with an ion-exchange membrane (Nafion® 117, DuPont). The membrane, which separates the reservoir and receiving solutions, is mounted on the base of a hollow rotating cylinder which contains a stationary baffle. The rotation of the cylinder causes well-defined fluid motion on both sides of the membrane so that boundary layer and membrane diffusion control can be readily distinguished and studied. Application of the RDC to Donnan dialysis is illustrated with the Nafion membrane/CoSO4-H2SO4 system.
AB - The conventional devices (e.g., stirred and tubular dializers) employed in Donnan dialysis experiments do not permit precise description of the associated hydrodynamics. Consequently, detailed analysis of the transport mechanism (e.g., decoupling of boundary layer and membrane diffusion effects) is often difficult. In an effort to alleviate this difficulty, the rotating diffusion cell (RDC) introduced by Albery et al. (J. Chem. Soc., Faraday Trans. I, 72 (1976) 1618-1624) has been adapted to the study of Donnan dialysis. The porous filter used in the original design has been replaced with an ion-exchange membrane (Nafion® 117, DuPont). The membrane, which separates the reservoir and receiving solutions, is mounted on the base of a hollow rotating cylinder which contains a stationary baffle. The rotation of the cylinder causes well-defined fluid motion on both sides of the membrane so that boundary layer and membrane diffusion control can be readily distinguished and studied. Application of the RDC to Donnan dialysis is illustrated with the Nafion membrane/CoSO4-H2SO4 system.
UR - http://www.scopus.com/inward/record.url?scp=0024640565&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024640565&partnerID=8YFLogxK
U2 - 10.1016/S0376-7388(00)82349-2
DO - 10.1016/S0376-7388(00)82349-2
M3 - Article
AN - SCOPUS:0024640565
SN - 0376-7388
VL - 43
SP - 5
EP - 17
JO - Journal of Membrane Science
JF - Journal of Membrane Science
IS - 1
ER -