包覆低共熔溶剂的聚苯乙烯微胶囊吸附Li+的性能研究Study on Li+ adsorption performance of polystyrene microcapsules containing deep eutectic solvents
侯晓静,王彦旭,吴可君,何潮洪
摘要(Abstract):
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)。
关键词(KeyWords): 微胶囊;提锂;低共熔溶剂;溶剂挥发法;吸附
基金项目(Foundation): 国家自然科学基金(51874256)
作者(Author): 侯晓静,王彦旭,吴可君,何潮洪
参考文献(References):
- [1]于建国,孙庆,裘晟波,等.支撑国家新能源战略发展的锂资源开发[J].无机盐工业, 2023, 55(1):1-14.YU J G, SUN Q, QIU S B, et al. Lithium resources development supporting national new energy strategy development[J]. Inorganic Chemicals Industry, 2023, 55(1):1-14.
- [2]茹存一.中国锂矿资源供需形势评价[D].北京:中国地质大学(北京), 2021.RU C Y. Research on risk evaluation and situation of China's lithium resources supply[D]. Beijing:China University of Geosciences(Beijing), 2021.
- [3]赵晓昱.海卤水提锂新技术研究现状及展望[J].高校化学工程学报, 2017, 31(3):497-508.ZHAO X Y. Review on new techniques for lithium extraction from seawater and brine[J]. Journal of Chemical Engineering of Chinese Universities, 2017, 31(3):497-508.
- [4] UM N, HIRATO T. Precipitation behavior of Ca(OH)2, Mg(OH)2, and Mn(OH)2 from CaCl2, MgCl2, and MnCl2 in NaOH-H2O solutions and study of lithium recovery from seawater via two-stage precipitation process[J]. Hydrometallurgy, 2014, 146:142-148.
- [5] NISHIHAMA S, ONISHI K, YOSHIZUKA K. Selective recovery process of lithium from seawater using integrated ion exchange methods[J]. Solvent Extraction and Ion Exchange, 2011, 29(3):421-431.
- [6] ZHANG Y, SUN W, XU R, et al. Lithium extraction from water lithium resources through green electrochemical-battery approaches:A comprehensive review[J]. Journal of Cleaner Production, 2021, 285:124905.
- [7] PARK M J, NISOLA G M, VIVAS E L, et al. Mixed matrix nanofiber as a flow-through membrane adsorber for continuous Li+recovery from seawater[J]. Journal of Membrane Science, 2016, 510:141-154.
- [8] OOI K, MIYAI Y, KATOH S. Recovery of lithium from seawater by manganese oxide adsorbent[J]. Separation Science and Technology, 1986, 21(8):755-766.
- [9] CHITRAKAR R, KANOH H, MIYAI Y, et al. Recovery of lithium from seawater using manganese oxide adsorbent(H1.6Mn1.6O4)derived from Li1.6Mn1.6O4[J]. Industrial&Engineering Chemistry Research, 2001, 40(9):2054-2058.
- [10] LIU L F, ZHANG H W, ZHANG Y S, et al. Lithium extraction from seawater by manganese oxide ion sieve MnO2·0.5H2O[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2015, 468:280-284.
- [11]柏春,郭敏,张慧芳,等.离子筛型锂吸附剂吸附法从盐湖卤水/海水中提锂的研究进展[J].化工进展, 2017, 36(3):802-809.BAI C, GUO M, ZHANG H F, et al. The research progress of extracting lithium from brine by lithium ion sieve[J]. Chemical Industry and Engineering Progress, 2017, 36(3):802-809.
- [12]李伟聪,余柳莹,沈剑,等.低共熔溶剂萃取水中二甲基甲酰胺的研究[J].高校化学工程学报, 2023, 37(2):210-216.LI W C, YU L Y, SHEN J, et al. Extraction of dimethylformamide in water with deep eutectic solvents[J]. Journal of Chemical Engineering of Chinese Universities, 2023, 37(2):210-216.
- [13] HANADA T, GOTO M. Synergistic deep eutectic solvents for lithium extraction[J]. ACS Sustainable Chemistry&Engineering,2021, 9(5):2152-2160.
- [14] YU L Y, WU K J, HE C H. Tailoring hydrophobic deep eutectic solvent for selective lithium recovery from dilute aqueous solutions[J]. Separation and Purification Technology, 2022, 281:119928.
- [15]陈国,方柏山,彭益强.一种可控制生物微胶囊尺寸的气流微囊发生器[J].高校化学工程学报, 2008, 22(3):466-470.CHEN G, FANG B S, PENG Y Q. A superposed air apparatus for size-controllable biocapsules preparation[J]. Journal of Chemical Engineering of Chinese Universities, 2008, 22(3):466-470.
- [16] DE SOUZA L R, AL-TABBAA A. High throughput production of microcapsules using microfluidics for self-healing of cementitious materials[J]. Lab on a Chip, 2021, 21(23):4652-4659.
- [17] ZHANG Q H, SUN S Y, LI S P, et al. Adsorption of lithium ions on novel nanocrystal MnO2[J]. Chemical Engineering Science,2007, 62(18/20):4869-4874.
- [18] BILGIC A, CIMEN A, KURSUNLU A N, et al. Novel fluorescent microcapsules based on sporopollenin for removal and detection of Cu(II)ions in aqueous solutions:Eco-friendly design, fully characterized, photophysical&physicochemical data[J]. Microporous and Mesoporous Materials, 2022, 330:111600.
- [19] NG C, LOSSO J N, MARSHALL W E, et al. Physical and chemical properties of selected agricultural byproduct-based activated carbons and their ability to adsorb geosmin[J]. Bioresource Technology, 2002, 84(2):177-185.
- [20] CHAN L S, CHEUNG W H, MCKAY G. Adsorption of acid dyes by bamboo derived activated carbon[J]. Desalination, 2008,218(1/2/3):304-312.