Please use this identifier to cite or link to this item: doi:10.22028/D291-30222
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Title: Polymer ion-exchange membranes for capacitive deionization of aqueous media with low and high salt concentration
Author(s): Zhang, Yuan
Srimuk, Pattarachai
Aslan, Mesut
Gallei, Markus
Presser, Volker
Language: English
Title: Desalination
Volume: 479
Startpage: 1
Endpage: 13
Publisher/Platform: Elsevier
Year of Publication: 2020
Publikation type: Journal Article
Abstract: In this work, carbon electrode modified polymer membrane and free-standing polymer membranes are applied for desalination via capacitive deionization with microporous activated carbon. The desalination performance under different concentrations (20 mM and 600 mM) of feed water and different voltage operation mode (zero-volt and voltage-reversal operation). For the ion exchange membrane coating under 20 mM NaCl solution at a cell voltage of 0/+1 V, the desalination capacity reached 22.7 mg/g at the charge efficiency of 142.1%. In the case of the free-standing membrane, under 600 mM NaCl solution at a voltage range of −1/+1 V, the desalination capacity reached 26.0 mg/g with a charge efficiency of 61.5%. These results not only show the possibility of membrane capacitive deionization (MCDI) application in seawater desalination but also reveals different ion transport mechanisms of the coated membrane and free-standing membranes under different molar strength of feed water.
DOI of the first publication: 10.1016/j.desal.2020.114331
URL of the first publication:
Link to this record: hdl:20.500.11880/28673
ISSN: 1873-4464
Date of registration: 10-Feb-2020
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Chemie
NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Markus Gallei
NT - Prof. Dr. Volker Presser
Collections:UniBib – Die Universitätsbibliographie

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