离子液体包水微乳体系制备壳聚糖纳米微球及吸附水中氟离子的研究  

Preparation of chitosan nanospheres by water in ionic liquid microemulsion system and their adsorption to fluoride ion in water

作　　者：贤凤 程婉婷 高静 XIAN Feng;CHENG Wan-ting;GAO Jing(School of Public Health,Guangdong Pharmaceutical University,Zhongshan 528458,China;School of Food Science,Guangdong Pharmaceutical University,Zhongshan 528458,China)

机构地区：[1]广东药科大学公共卫生学院,广东中山528458 [2]广东药科大学食品科学学院,广东中山528458

出　　处：《现代化工》2022年第6期129-134,共6页Modern Chemical Industry

基　　金：国家自然科学基金(22078070);广东省自然科学基金(2019A1515010640);广东省创新强校项目(230419064)。

摘　　要：以壳聚糖水溶液、1-丁基-3-甲基咪唑六氟磷酸盐([C_(4)min]PF_(6))、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([C_(4)min]PF_(6)),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).

关 键 词：壳聚糖 微乳液 离子液体 脱氟 纳米微球 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O613.41[理学—无机化学]