Synthesis of Mercapto Functional Fe3O4-Chitosan and Its Absorption of Anionic Dye
ZHANG Wanting
WU Guiping
CUI Longzhe
Abstract：Fe3O4 was prepared by chemical co-precitation method and modified by mercaptoacetic acid.Modified Fe3O4 and chitosan were crosslinked by glutaraldehyde (GLA) to prepared magnetic chitosan (FeaO4-SH/CS).The obtained sorbent Fe3O4-SH/CS was used for the sorption of a model dye i.e.indigo carmine (IC).The effect of sorption time,solution pH,temperature and initial dye concentration are researched in that modified magnetic chitosan microspheres adsorbed IC.The results of pH revealed that pH 3 was the best condition for the IC removal with the maximum IC uptake of 531 mg/g.The isotherm data was better fitted to the Freunlich model (R2=0.996 0).Moreover,the kinetic data was better described by the pseudo-second-order model.In brief,this study reports an effective sorbent Fe3O4-SH/CS for removal of IC from aqueous solution.
Keywords：iron oxidethioglycolic acidchitosanglutaraldehydeadsorptionindigo carmine
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( 19-23,44 )