Investigation of activated carbon adsorbent electrode for electrosorption-based uranium extraction from seawater

Aznan Fazli Ismail, Man Sung Yim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

To support the use of nuclear power as a sustainable electric energy generating technology, long-term supply of uranium is very important. The objective of this research is to investigate the use of new adsorbent material for cost effective uranium extraction from seawater. An activated carbon-based adsorbent material is developed and tested through an electrosorption technique in this research. Adsorption of uranium from seawater by activated carbon electrodes was investigated through electrosorption experiments up to 300 minutes by changing positive potentials from þ0.2V to þ0.8V (vs. Ag/AgCl). Uranium adsorption by the activated carbon electrode developed in this research reached up to 3.4 g- U/kg-adsorbent material, which is comparable with the performance of amidoxime-based adsorbent materials. Electrosorption of uranium ions from seawater was found to be most favorable at þ0.4V (vs. Ag/AgCl). The cost of chemicals and materials in the present research was compared with that of the amidoxime-based approach as part of the engineering feasibility examination.

Original languageEnglish
Pages (from-to)579-587
Number of pages9
JournalNuclear Engineering and Technology
Volume47
Issue number5
DOIs
Publication statusPublished - 2015

Fingerprint

Seawater
Activated carbon
Uranium
Adsorbents
Electrodes
Adsorption
Nuclear energy
Costs
Ions
Experiments

Keywords

  • Activated carbon electrode
  • Adsorbent cost
  • Electrosorption
  • Seawater
  • Uranium extraction

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

Cite this

Investigation of activated carbon adsorbent electrode for electrosorption-based uranium extraction from seawater. / Ismail, Aznan Fazli; Yim, Man Sung.

In: Nuclear Engineering and Technology, Vol. 47, No. 5, 2015, p. 579-587.

Research output: Contribution to journalArticle

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