Facile fabrication of bimetallic Fe–Mg MOF for the synthesis of xanthenes and removal of heavy metal ions
Wafaa S. Abo El‐Yazeed, Yasmeen G. Abou El‐Reash, L.A. Elatwy, Awad I. Ahmed
Abstract
run, the Fe-Mg MOF catalyst still maintained nearly the initial catalytic activity. The adsorption performance of Mg-MOF, Fe-MOF and Fe-Mg MOF was evaluated by batch experiments. The effect of contact time, the solution pH, the adsorbent dose and the initial concentration of the heavy metal ions was discussed. It was found that the capacity of the bimetallic Fe-Mg MOF for Pb(ii), Cu(ii) and Cd(ii) adsorption was higher than that of the Mg-MOF and Fe-MOF, the kinetic data followed the pseudo-second-order kinetic model and the isothermal data obeyed the Langmuir isotherm model. The mechanism of the removal of the heavy metal ions was discussed.
Topics & Concepts
Bimetallic stripCatalysisAdsorptionChemistrySynergistic catalysisPotentiometric titrationLangmuir adsorption modelNuclear chemistryMetal ions in aqueous solutionMetalInorganic chemistryMetal-organic frameworkIonPhysical chemistryOrganic chemistryMetal-Organic Frameworks: Synthesis and ApplicationsThermal and Kinetic AnalysisMulticomponent Synthesis of Heterocycles