Abstract
Carbon nanotubes and nanofibres (CNTs-CNFs) films have been grown on Ni sheets by low pressure chemical vapor deposition system and show good physical adsorption capability for ferric (Fe3+) ions. The studies of adsorption kinetics and isotherms indicate that Fe3+ adsorption process was regarded as first-order model and followed a Langmuir isotherm indicating monolayer adsorption. The saturated CNTs-CNFs film is easy to be regenerated by electrodesorption with direct voltage applied. The result shows that the combination of adsorption and electrodesorption by CNTs-CNFs is a promising technology to remove the Fe3+ contamination in solution, which can be further extended to the process of other heavy metal ions.
| Original language | English |
|---|---|
| Pages (from-to) | 1657-1663 |
| Number of pages | 7 |
| Journal | Water Science and Technology |
| Volume | 59 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2009 |
| Externally published | Yes |
Keywords
- Adsorption
- Carbon nanotube and nanofibers
- Electrodesorption