Al-doped spinel LiMn 2 O 4 anchored on diatomaceous earth for selective lithium adsorption under simulated brine conditions

Key Points

• The aim is to evaluate the lithium adsorption capabilities of Al-doped LiMn2O4 anchored on diatomaceous earth under simulated brine conditions.
• Evaluated lithium separation factor and regeneration efficiency of Al-doped diatomaceous earth-supported LMO.
• Conducted tests over 5 cycles of lithium adsorption and regeneration.
• Achieved a lithium separation factor between ∼1767 and ∼27 under simulated brine conditions.
• Regeneration efficiency reached 92 ± 1.5% over multiple cycles with low manganese release.