Recovery of Lithium from Wastewater Using Development of Li Ion-Imprinted Polymers
文献类型：期刊论文
| 作者 | Luo, Xubiao; Guo, Bin; Luo, Jinming; Deng, Fang; Zhang, Siyu; Luo, Shenglian; Crittenden, John |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2015-03 |
| 卷号 | 3期号:3页码:460-467 |
| 关键词 | Fe3O4@SiO2@IIP Wastewater Lithium Recovery Crown ether |
| 英文摘要 | Recycling lithium from waste lithium batteries is a growing problem, and new technologies are needed to recover the lithium. Currently, there is a lack of highly selective adsorption/ion exchange materials that can be used to recover lithium. We have developed a magnetic lithium ion-imprinted polymer (Fe3O4@SiO2@IIP) by using novel crown ether. The Fe3O4@SiO2@IIP has been synthesized by a surface imprinting technique using our newly synthesized 2-(allyloxy) methyl-12-crown-4 as a functional monomer. The Fe3O4@SiO2@IIP was analyzed by Fourier infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The optimum pH for adsorption is 6. Fe3O4@SiO2@IIP shows fast adsorption kinetics for lithium ions (10 mm to reach complete equilibrium), and the adsorption process obeys an external mass transfer model. Homogeneous binding sites are proved by the Langmuir isotherm, and the maximum adsorption capacity is 0.586 mmol/g. Fe3O4@SiO2@IIP has excellent selectivity for Li(I) because the selectivity separation factors of Li(I) with respect to Na(I), K(I), Cu(II), and Zn(II) are 50.88, 42.38, 22.5, and 22.2, respectively. The adsorption capacity of sorbent remained above 92% after five cycles. Fixed-bed column adsorption experiments indicate that the effective treatment volume was 140 bed volumes (BV) in the first run with a breakthrough of 10% of the inlet concentration for an inlet concentration of 0.5 mmol/L and 110 BV was treated for the second run under identical conditions. We demonstrated that 89.8% of the lithium was recovered during bed regeneration using 0.5 mol/L HCl solution. Fe3O4@SiO2@IIP also exhibited excellent removal efficiency for Li(I) in real wastewater, validating its great potential in advanced wastewater treatment. Accordingly, we have developed a new method for wastewater treatment that meets Li emission standards, and recovery of Li creates economic interest. |
| 研究领域[WOS] | Chemistry, Multidisciplinary ; Engineering, Chemical |
| WOS记录号 | WOS:000350390600010 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32831]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Luo, Xubiao,Guo, Bin,Luo, Jinming,et al. Recovery of Lithium from Wastewater Using Development of Li Ion-Imprinted Polymers[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2015,3(3):460-467. |
| APA | Luo, Xubiao.,Guo, Bin.,Luo, Jinming.,Deng, Fang.,Zhang, Siyu.,...&Crittenden, John.(2015).Recovery of Lithium from Wastewater Using Development of Li Ion-Imprinted Polymers.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,3(3),460-467. |
| MLA | Luo, Xubiao,et al."Recovery of Lithium from Wastewater Using Development of Li Ion-Imprinted Polymers".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 3.3(2015):460-467. |
入库方式： OAI收割
来源：生态环境研究中心
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