Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6366010 | Water Research | 2015 | 8 Pages |
Abstract
The lithium concentration in seawater is 0.17 mg/L, which is very low, but the overall quantity is approximately 2.5 Ã 1014 kg. Therefore, seawater, which contains a vast amount of lithium, could be a major alternative source that might supply the rising demand for lithium. This research was undertaken to evaluate the feasibility of a manganese oxide (HMnO) adsorbent, which was produced after leaching lithium from lithium manganese oxide, for lithium collection from seawater. The HMnO was synthesized and deformed to a plastic after wet blending of manganese oxide and lithium hydroxide, and subsequently, the influence of pH, sorption isotherms, sorption rates, sorption energies, and effects of the co-ions were measured. Thermodynamic parameters such as ÎG°, ÎH°, and ÎS° indicated that the nature of the lithium sorption was both spontaneous and endothermic. The used HMnO could be regenerated by washing it with an HCl solution. The results demonstrated that HMnO could be effectively used for the collection of lithium from seawater with good selectivity.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
HyunJu Park, Naresh Singhal, Eun Hea Jho,