METHOD FOR SELECTIVE SEPARATION OF MONOVALENT IONIC SPECIES USING ELECTRODES FUNCTIONALIZED WITH SULFONIC GROUPS

The present invention relates to a method for selective separation of positively charged monovalent ionic species from an ionic solution. The method comprises passing the ionic solution comprising a positively charged monovalent ion and a positively charged polyvalent ion through an electrode capaci...

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Bibliographic Details
Main Authors Guyes, Eric N, Suss, Matthew E, Diesendruck, Charles E, Chen, Yinke
Format Patent
LanguageEnglish
Published 03.03.2022
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The present invention relates to a method for selective separation of positively charged monovalent ionic species from an ionic solution. The method comprises passing the ionic solution comprising a positively charged monovalent ion and a positively charged polyvalent ion through an electrode capacitor assembly comprising a first electrode and a second electrode, said electrodes comprising nanoporous carbon, wherein the first electrode is modified with sulfonate surface groups; and at least one flow channel for the passage of the solution. The method further comprises charging the electrode capacitor assembly (1) at a voltage of at least about 1.5 V; and/or (2) for scaled charging time of less than about 2.
Bibliography:Application Number: US202117462054