期刊
NEW JOURNAL OF CHEMISTRY
卷 42, 期 17, 页码 14502-14509出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nj03249a
关键词
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资金
- National Natural Science Foundation of China [U1507118]
- Natural Science Foundation of Jiangsu Province [BK20151350, BK20161367, BK20171315]
- China Postdoctoral Science Foundation [2014M561588, 1501067C, 170113B]
The recovery of lithium ions from mixed solutions has attracted extensive research interests with increasing demand of lithium resources. In this study, novel cauliflower-like lithium-ion imprinted polymers (Li-IIPs) have been successfully synthesized by using B12C4 as the complexing agent, acrylamide (AM) as the functional monomer and N,N-methylene bis-acrylamide (MBAM) as the cross linker for selective separation and recovery of lithium ions from mixed solutions. The Li-IIPs exhibited maximum adsorption capacity for Li+ (1.135 mmol g(-1)) under optimum experimental conditions. Additionally, the high relative selectivity factors (K-Li/Na = 5.34, K-Li/K = 6.47, K-Li/Cu = 23.05, K-Li/Zn = 27.13) indicated that Li-IIPs had outstanding selective performance. The regeneration experiments were also conducted and confirmed the favorable reusability and stability of the as-prepared polymers. Therefore, the outstanding performance and simple preparation method makes Li-IIPs a powerful tool for effective separation and recovery of lithium ions in practical applications.
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