以壳聚糖水溶液、1-丁基-3-甲基咪唑六氟磷酸盐（[C₄min]PF₆）、不同质量比的TX-100和正丁醇为原料构建离子液体包水微乳液体系，并对其进行了表征。采用反相微乳液交联技术制备壳聚糖纳米微球，并将其应用于吸附水溶液中的氟离子。结果表明，选取质量比为4：1的TX-100/正丁醇为乳化剂构建稳定的离子液体包水微乳液，粒径范围在10 nm以内，黏度低且稳定。红外光谱分析结果表明，壳聚糖纳米微球成功交联，粒径在200 nm以内，对于去除废水中氟离子具有良好的效果，其中脱氟率达到（60.28±1.96）%，平均吸收量为1.558 mg/g。

An ionic liquid-in-water microemulsion system is constructed with aqueous chitosan solution, 1-butyl-3-methylimidazolium hexafluorophosphate ([C₄min]PF₆), and different mass ratios of TX-100/n-butanol as raw materials, and characterized.Chitosan nano microspheres are prepared in the constructed system by means of the reverse-phase microemulsion cross-linking technique, and applied to adsorb fluoride ions from aqueous solutions.It is shown that TX-100/n-butanol with a mass ratio of 4:1 is selected as the emulsifier to construct stable ionic liquid-in-water microemulsion system with a particle size range within 10 nm, and a low and stable viscosity.The results from infrared spectroscopy analysis show that the chitosan nano microspheres have been successfully cross-linked with a particle size within 200 nm, and show good effects on the removal of fluoride ions from wastewater.The defluorination rate reaches 60.28±1.96% and the average absorption reaches 1.558 mg·g^-1.

贤凤(1996-),女,硕士研究生,研究方向为虾青素生物功能研究,xianfeng0220132@163.com。