Preparation of a novel chitosan magnetic material and its adsorption mechanism towards dyes

Abstract:

In order to effectively solve the environmental pollution caused by dye wastewater, a copper ion chelated chitosan magnetic composite was prepared for the adsorption of dye wastewater. The composite Cu@CTS@Fe3O4 was successfully prepared by the coordination chelation of chitosan with copper ion and the introduction of magnetic particles Fe3O4. The structure and morphology of the prepared materials were characterized by FTIR, SEM and TGA. At the same time, the adsorption kinetics and isotherm adsorption of reactive brilliant red (RBR) were studied in detail. The adsorption experiments showed that the adsorption capacity of Cu@CTS@ Fe3O4 to RBR reached the maximum of 831.22 mg/g when pH=2. This study provides some relevant data and theoretical guidance for the application of chitosan-based adsorbents in the field of dye wastewater treatment.