Abstract
In this account, manganese oxide lithium ion-sieve MO derived from spinel lithium-enriched manganese oxide Li1.45Mn1.67O4 (LMO) was prepared and its structure, morphology and valence of Mn for both LMO and MO were analyzed by XRD, SEM and XPS, respectively. The results revealed that after acid leaching, MO maintained the spinel structure and porous morphology of LMO, which was beneficial to the Li+ adsorption process. The estimated average valence of Mn in MO was 3.91. The adsorption of lithium for MO in a LiCl-NH3·H2O-NH4Cl buffer solution at pH=9 showed the best fit with a Langmuir isotherm, indicating that a Li+-H+ ion exchange mechanism took place. The adsorption kinetics study demonstrated that the Li+ adsorption process of MO complied with a pseudo-second order model, where the control step of the adsorption process changed with temperatures. The ion exchange isotherms showed that the ion-sieve MO could complete an exchange reaction in LiCl-NH3·H2O-NH4Cl buffer solution. Finally, the MO was applied to recover lithium from a simulated ammoniacal spent lithium ion battery processing solution with a capacity of 15mg/g.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
