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Synthesis and Characterization of Titanium Oxide Ion-Sieve for Lithium Recovery from Seawater
Paper ID : 2345-UFGNSM13-FULL
Authors:
Abstract:
Due to titanium oxide 1-D nanostructure has previously performed good physical and chemical properties such as high surface area and ion exchange ability, many researches have enjoyed using this compound so far. In this study titanium oxide with nanotube morphology was synthesized via two-stage simple hydrothermal process. The produced spinel Li4Ti5O12 ternary oxide was then treated with acid in order to prepare an ion sieve suitable for lithium adsorption from local brine. The morphology and phase of the obtained nanostructured samples were determined with transmission and scanning electron microscopy along with X-ray diffraction analysis. The surface area, the porosity density and average size and volume of the pores were measured with the gas adsorption-desorption technique. Lithium ion exchange capacity of this absorbent was finally evaluated by means of Adsorption Isotherm. The results showed titanium oxide ion sieve could recover 80% of present lithium from low concentration brine.
Keywords:
Titanium oxide, Nanotube, Ion exchange, Lithium extraction, Brine
Status : Paper Accepted (Poster Presentation)