文献类型：期刊文献

英文题名：Interlayer confinement imprinting to enhance the feasibility of Li/Al-LDHs in lithium extraction from sulfate-type brines

作者：Zhang, Rui[1,2];Guo, Yihong[1,2];Yu, Jianguo[1,3];Lin, Sen[1,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Salt Lake Resources Proc Engn, Minist Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2023

卷号：639

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20234014817534);WOS:【SCI-EXPANDED(收录号:WOS:001065561300001)】；

基金：The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. This work was supported by the National Natural Science Foundation of China (21978094, U20A20142), and Shanghai Rising-Star Program (22QA1402700).

语种：英文

外文关键词：Sulfate-type brine; Lithium aluminum layered double hydroxides; Lithium extraction; SOq imprinting; Column experiment

摘要：Lithium/aluminum layered double hydroxide imprinted with SOq (ILDH) was prepared to enhance the lithium adsorption performance in low grade sulfate-type brines. The systematical characterization confirmed the ILDH had a morphology of two-dimensional lamella that was less randomly arranged than the traditional lithium/ aluminum layered double hydroxide (TLDH). ILDH demonstrated a significantly enhanced adsorption performance in the long-term adsorption-desorption cycle replying on the excellent structural stability from the imprinting effects compared to TLDH. The adsorption capacity of ILDH was about 3.0 mg/g after 10 cycles, and the column experiments manifested that the Mg2+/Li+ mass ratio could be significantly declined from 57.99 in the Yiliping sulfate-type brine to 2.36 in the desorption solution with 2.77 mg/g Li+ adsorption capacity at room temperature.