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EnglishThe removal of palladium, present as Pd(II), from aqueous solutions has been performed by a micellar- enhanced ultrafiltration process employing the cationic surfactant dodecyl-trimethylammonium chloride (DTAC). The effect of surfactant concentration and solution pH were investigated. Addition of DTAC at concentrations above the critical micellar concentration results in Pd(II) removal exceeding 95%. The possibility of Pd(II) recovery from the retentate was also examined. After the ultrafiltration process, metal ions are concentrated on the micelle surface. The addition of a strong electrolyte can be very useful to expel the metal from the micelles. Our results show that addition of aqueous MgCl2 at a concentration of 0.8 M enables us to recover palladium with a yield of 66%
| Autori interni: | ||
| Autori: | GHEZZI L; ROBINSON B. H; TINE' M; SECCO F; VENTURINI M | |
| Titolo: | Removal of palladium(II) ions from water using micellar-enhanced ultrafiltration with a cationic surfactant | |
| Anno del prodotto: | 2008 | |
| Digital Object Identifier (DOI): | 10.1016/j.colsurfa.2008.06.037 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11568/122067
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