Determination of structure stability and adsorption performance of Li1.33Mn1.67O4 adsorbents

Adsorbents based on lithium manganese double oxides Li1.33Mn1.67O4 with a spinel structure were synthesized using the sol–gel method. The influence of temperature during synthesis and conversion to the H-form, as well as the conditions of the adsorption experiment, on the adsorption capacity of the resulting adsorbents was investigated. It was found that increasing the synthesis temperature of Li1.33Mn1.67O4 oxides from 500 to 600 °C leads to a decrease in the adsorption capacity for Li+ ions from 6.60 to 1.62 mmol g−1 at an adsorption temperature of 50 °C.