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Amino-functionalized multi-walled carbon nanotubes for removal of cesium from aqueous solution

  • Kyungpook National University

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Amino-functionalized multi-walled carbon nanotubes (MWCNTs) were synthesized by a simple, cost-effective method using 3-aminopropyltriethoxysilane and were evaluated for cesium ion removal in aqueous solution. Experimental results showed that the maximum cesium adsorption capacity of amino-functionalized MWCNTs was 136.3 mg g−1, reaching 95% of the ultimate adsorption capacity within 30 min. The adsorption capacity of amino-functionalized MWCNTs was not significantly affected by the presence of competing ions. The Langmuir isotherm fitted the experimental data well and a thermodynamic study indicated the spontaneous and endothermic nature of cesium adsorption on the amino-functionalized MWCNTs.

Original languageEnglish
Pages (from-to)691-701
Number of pages11
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume316
Issue number2
DOIs
StatePublished - 1 May 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Adsorptive separation
  • Amino-functionalization
  • Multi-walled carbon nanotubes
  • Radioactive cesium

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