【摘要】 为实现绿色、低成本从海水中提锂的目标，采用同轴共流微流体技术结合溶剂挥发法制备包覆有低共熔溶剂（甲基三辛基氯化铵/癸酸）的聚苯乙烯微胶囊。所制备的微胶囊颗粒呈均一的球形。将该微胶囊用作萃取Li⁺吸附剂，系统研究了吸附时间、吸附温度、溶液pH、初始锂浓度和固液比对Li⁺吸附量和萃取率的影响。结果表明在吸附Li⁺水溶液时，微胶囊对Li⁺的最大吸附量为32 mg·g^-1。碱性条件时微胶囊对模拟海水中的Li⁺吸附分配比为10.22 L·g^-1。更多还原

【Abstract】 To achieve environment friendly and low-cost lithium extraction from seawater,a co-axial microfluidic technology combined with a solvent evaporation method was employed to prepare polystyrene microcapsules coating a deep eutectic solvent （methyl trioctyl ammonium chloride/decanoic acid）.The resulting microcapsules exhibits uniform spherical morphology.These microcapsules were employed as Li⁺adsorbents,and a systematic investigation was conducted to study the effects of adsorption time,temperature,solution pH,initial Li⁺concentration,and solid-liquid ratio on Li⁺adsorption capacity and extraction efficiency.The results demonstrate a maximum Li⁺adsorption capacity of 32 mg·g^-1 when adsorbing Li⁺from aqueous solutions.Furthermore,the distribution ratio of Li⁺from simulated seawater by microcapsules is 10.22 L·g^-1under alkaline conditions.更多还原