Abstract
In this experiment, phosphate (sodium hexametaphosphate) was used as an intercalation modifier and ZIF-67 as a precursor mixed with Al(NO3)3·9H2O Nanolayered double hydroxides P-Co-Al-LDH with hexametaphosphate group intercalation were prepared in a hydrothermal environment and characterized by SEM, FT-IR, XRD, TGA, SEM and XPS. The adsorption performance of P-Co-Al-LDH and control Co-Al-LDH on Ce3+ under different adsorption conditions was firstly investigated by optimization experiments. It was determined that the best adsorption effect of P-Co-Al-LDH was achieved at pH=6, and the fast equilibrium adsorption state was achieved within 30 min, with the adsorption amount reaching 220.98 mg/g and the adsorption efficiency reaching 72.66%. In addition, kinetic, isothermal adsorption and thermodynamic modeling explored the adsorption mechanism of Ce3 + by nanodiamond P-Co-Al-LDH mainly the complexation of functional groups in sodium hexametaphosphate with metal ions greatly improved the adsorption performance. Several regeneration experiments were carried out to evaluate the stability and reusability of the adsorbent. After three cycles of adsorption, the adsorption efficiency was still maintained at 83.26%.
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.
