Abstract
This article reports the use of polyaniline (PAni), chemically and electrochemically synthesized, for copper removal from aqueous solutions. PAni films were electrodeposited on reticulated vitreous carbon (RVC). In all cases, p-toluenesulfonate anion (PTS?) was used as the dopant to obtain cation exchange properties. RVC/PAni showed no expressive copper removal due to the small amount of polymer in the film. Chemically synthesized PAni-PTS? was obtained in its reduced form (leucoesmeraldine). PAni degraded at neutral pH but remained stable at low pH, showing a very high ion-exchange capacity, which is superior to those observed for commercial resins.
| Translated title of the contribution | Modification of the conducting polymer polyaniline for enabling cation exchange |
|---|---|
| Original language | Portuguese (Brazil) |
| Pages (from-to) | 1459-1464 |
| Number of pages | 6 |
| Journal | Quimica Nova |
| Volume | 37 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
Keywords
- Copper
- Ion exchange
- Polyaniline