Spray-drying assisted layer-structured H_(2)TiO_(3) ion sieve synthesis and lithium adsorption performance

作     者：Minxia Liu Dang Wu Dongling Qin Gang Yang Minxia Liu;Dang Wu;Dongling Qin;Gang Yang

作者机构：College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2022年第35卷第5期

页      面：258-267页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 0822[工学-轻工技术与工程] 

基　　金：financially supported by the Prospective Joint Research Project of Industry,University and Research in Jiangsu Province(BY2016005-11) National Science and Technology Support Plan(No.2013BAE111B03) 

主　　题：Spray-drying Ion sieve Adsorption Lithium Dissolution loss 

摘      要：A spray-drying assisted solid-state method to prepare spherical layer-structured H_(2)TiO_(3) ion sieve(LSTIS)particles is reported *** effects of synthesis parameters(calcination temperature,calcination time,and the lithium-titanium molar ratio)on adsorption-desorption performance(the delithiation ratio,titanium dissolution loss,and the adsorption capacity)were *** as-prepared LSTIS exhibited an equilibrium adsorption capacity of 30.08 mg·g^(-1)(average of 25.85 mg·g^(-1) over 5 cycles)and ultra-low titanium dissolution loss of less than 0.12%(average of 0.086%over 5 cycles).The LSTIS showed excellent selectivity toward Li^(+) in Na^(+),K^(+),Mg^(2+),and Ca^(2+) coexisting saline solutions where its adsorption capacity reached 27.45 mg·g^(-1) and the separation factors of Li^(+) over the coexisting cations exceeded *** data suggests that the LSTIS is promising to competitively enrich Li^(+) from saline solutions.