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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 44756 (07)
- University: Sharif University of Technology
- Department: Materials Science and Engineering
- Advisor(s): Askari, Masoud
- Abstract:
- Interest in lithium sources has been increasing because of wide applications of the metal in high-energystorage lithium batteries and its compounds in otherfields.Lithium appears in lake, brines and several minerals such as spodumene, petallite, and lepidolite. Several methods such as ion exchange (adsorption), solvent extraction, and coprecipitation have been investigated for the extraction of lithium from seawater, brine, and geothermal water. The adsorption method is suitable for recovery of lithium from seawater because certain inorganicion-exchange materials show extremely high selectivity for lithium ions only.The objective of this study is to evaluate the applicability of nano structured lithium adsorbent for the recovery of lithium fromseawater. The investigations on structure and chemical composition, morphology and Li+ adsorption properties of the adsorbents were carried out by X-ray diffractometer (XRD), field emission gun scanning electron microscopy (FESEM) and atomic absorption spectrophotometer (AAS).It was found that lithium ion sieves had potential application for lithium recovery from aqueous phases and under optimized conditions the maximum lithium uptake has been obtained 17 mg/g in LiCl solution. Kinetic experiments suggested that the adsorption process followed the Freundlich model
- Keywords:
- Zirconium Oxide ; Lithium Ion Batteries ; Ion Exchange ; Zirconia ; Nanoparticles
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