Abstract
Carbon nanotube-chitosan (CNT-CS) composite electrodes are prepared by firstly reacting oxidized CNT with thionyl chloride and then covalently grafting CS onto the surface of CNT. The electrochemical removal of Cu2+ ions by CNT-CS composite electrodes is investigated. The results show that CNT-CS Exhibits 85% Cu2+ removal ratio, 25% higher than that of pristine CNT, due to its lower zeta potential, higher surface area, more hydrophilic surface and more binding sites.
| Original language | English |
|---|---|
| Pages (from-to) | 5667-5671 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| Volume | 509 |
| Issue number | 18 |
| DOIs | |
| State | Published - 5 May 2011 |
| Externally published | Yes |
Keywords
- Carbon nanotube
- Chitosan
- Composite electrode
- Cu(II) ion
- Electrochemical removal