On the electrokinetic characterization of charged polymeric membranes by transversal streaming potential
The effect of a transmembrane pressure on the electrokinetic properties of different polymeric charged membranes is analysed. Electrokinetic characterization can involve the application of increasing or decreasing pressure differences over a membrane sample. The aim of this work is to study whether...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/4545 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/4545 |
| Access Level: | acceso abierto |
| Palabra clave: | 536 Cation-exchange membranes Electroosmotic drag Energy-conversion Nanofiltration membranes Reverse electrodialysis Hydraulic permeability Surface-charge Water Pressure Osmosis Termodinámica 2213 Termodinámica |
| Sumario: | The effect of a transmembrane pressure on the electrokinetic properties of different polymeric charged membranes is analysed. Electrokinetic characterization can involve the application of increasing or decreasing pressure differences over a membrane sample. The aim of this work is to study whether the transmembrane pressure application during the measurement process to determine the zeta potential and the intrinsic permeability of polymeric membranes causes a membrane irreversible change. It is a relevant issue in membrane technology, because electrokinetic properties are used to analyse the viability and performance of ion-exchange membranes processes in practical applications. We show that polymeric membranes can be affected by a transmembrane pressure application. This influence does not affect surface char ge distribution of the polymeric membranes, but it can strongly affect the membrane structure. (c) 2021 Elsevier Ltd. All rights reserved. |
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