RT Journal Article
T1 Zeolite Adsorbents for Selective Removal of Co(II) and Li(I) from Aqueous Solutions
A1 Díez Alcántara, Eduardo
A1 Redondo, Cinthya
A1 Gómez Martín, José María
A1 Miranda Carreño, Rubén
A1 Rodríguez Rodríguez, Araceli
AB Cobalt and lithium are critical metals because of its shortage, difficulty of extraction and huge economic impact due to their market value. The purpose of this work is to study their selective removal from aqueous solutions in different conditions using two commercial FAU zeolites as adsorbent materials. These solids were characterized by XRD, XRF and BET analysis, to follow up of their FAU structure integrity, their Si/Al ratio, and their specific surface area evolutions through their preparation process. The kinetic study indicates that using both zeolites with a dosage of 5 g/L a 100% cobalt removal from aqueous solutions is achievable, while lithium removal is kept around 30% (separation factor of 3.33). This selectivity is important as these two metals frequently appear together in leaching solutions form, for example, ion-Li batteries. In relation to the adsorption equilibrium, cobalt adsorption presents a finite adsorption capacity while this behavior is not observed in lithium adsorption. For this reason, Langmuir model is the most adequate to represent cobalt adsorption, while lithium adsorption is better represented by Freundlich model.
PB MDPI
SN 2073-4441
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/72150
UL https://hdl.handle.net/20.500.14352/72150
LA eng
NO Díez, E.; Redondo, C.; Gómez, J.M.; Miranda, R.; Rodríguez, A. Zeolite Adsorbents for Selective Removal of Co(II) and Li(I) from Aqueous Solutions. Water 2023, 15, 270. https://doi.org/10.3390/w15020270
NO Universidad Complutense de Madrid
NO Comunidad de Madrid
DS Docta Complutense
RD 9 abr 2025