Adsorption and Removal of Indigo Carmine by Magnetic Metal Organic Framework Materials
WU Chen
LIU Tao
CHEN Ligang
DING Jie
Abstract：The Fe304@NH2-MOF (A1) magnetic nano-particles were synthesized by two steps of hydrothermal method.The materials' morphology and property of magnetism were characterized by transmission electron microscope and magnetic analysis.Adsorptive removal of indigo carmine by the MOF (Al) magnetic nano-particles was studied in view of ionic strength,pH,adsorption isotherm,kinetics and thermodynamics.Depending on the regeneration characteristics of magnetic materials,the magnetic MOF (A1) was washed by different eluents and reuse.Results show that the materials are nanoparticles,with excellent physical and chemical properties.They have superparamagnetism and could be separated quickly from aqueous medium via external magnetic field.The experiement data demonstrated that the adsorption mechanism follows the pseudo-second-order model.Moreover,the adsorption process is exothermic and spontaneous.The study on possibility of regeneration shows that the Fe3O4@NH2-MOF(Al) not only has higher adsorption capacity,it can also be recycled after used.
Keywords：magneticnano-particlesdyeadsorptionreuse
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 43-48 )