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 language | English |
|---|---|
| Pages (from-to) | 691-701 |
| Number of pages | 11 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 316 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 May 2018 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Adsorptive separation
- Amino-functionalization
- Multi-walled carbon nanotubes
- Radioactive cesium
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