Efficient regeneration of the crystal structure and Li+ adsorption capacity of Li/Al layered double hydroxides

This study proposes a high c(LiCl)-based hydrothermal cultivation method for the structural damage regeneration of Li/Al-LDHs. The crystal structure was regenerated and small fragments of gibbsite were reassembled into rose petal-shaped Li/Al-LDHs. The analysis of Li+ adsorption kinetics and isotherm reveals that while the structural damage of Li/Al-LDHs has no impact on the mode or rate of adsorption, it does have a substantial effect on the adsorption capacity. This study provides a reuse method of Li/Al-LDHs.