Abstract
It was reported in our previous work that activated alumina had been successfully applied to selective adsorption of lithium ions in molten NaNO3 at a high temperature. In the present work, the activated alumina samples were prepared by heat treatment of commercially available alumina sol at different temperatures. Their physical properties were measured, then their adsorption uptake of lithium ions were evaluated. Amorphous alumina showed higher adsorption uptake of lithium ions than any other phases of alumina and the uptake increased in proportion to the surface area of activated alumina. The lithium ion uptake per unit surface area varied slightly with the phase of alumina, implying that the surface microstructure of each activated alumina has a different adsorptive capability for lithium ions. Since the mean pore radius of each activated alumina sample was at least forty times larger than the ionic radius of lithium, it may be concluded that there is little effect of the pore size on adsorptive capabilities for lithium ions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
