Electrosorption of different cations and anions with membrane capacitive deionization based on carbon nanotube/nanofiber electrodes and ion-exchange membranes

  • Chunyang Nie
  • , Yankun Zhan
  • , Likun Pan*
  • , Haibo Li
  • , Zhuo Sun
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

A membrane capacitive deionization (MCDI) device, which combines ion-exchange membranes and carbon nanotube and carbon nanofiber (CNT-CNF) film electrodes, has been developed to investigate the selective electrosorption of different cations and anions. The CNT-CNF films are synthesized by low pressure and low temperature thermal chemical vapor deposition. The experimental results show that multivalent cations and anions are better adsorbed from aqueous solution and for cations or anions with same charge, the one with smaller hydrated radius will be more effectively removed.

Original languageEnglish
Pages (from-to)266-271
Number of pages6
JournalDesalination and Water Treatment
Volume30
Issue number1-3
DOIs
StatePublished - Jun 2011
Externally publishedYes

Keywords

  • Carbon nanotube and carbon nanofiber
  • Hydrated radius
  • Ion-exchange membranes
  • Membrane capacitive deionization

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