Enhancing adsorption capacity and structural stability of Li_1.6Mn_1.6O₄ adsorbents by anion/cation co-doping.

ABSTRACT: Modifying the structure of Li_1.6Mn_1.6O₄ (LMO) to enhance its structural stability and adsorption capacity is an effective method to generate materials to recover Li⁺ ions from mixed solution. Herein, the co-doping of trace non-metal ion (S) and metal ion (Al) into Li_1.6Mn_1.6O₄ (LMO-SAl) is established and shows excellent Li⁺ adsorption capacity and Mn anti-dissolution properties. The adsorption capacity (when [Li⁺] is 6 mmol L^-1) is increased from 26.1 mg g^-1 to 33.7 mg g^-1. This is attributed to improved charge density via substitution of S at O sites, which facilitates the adsorption/desorption process. The Mn dissolution is also reduced from 5.4% to

SUBMITTER: Su Y 

PROVIDER: S-EPMC8979199 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature