Preparation of Magnetic Co0.5Zn0.5Fe2O4 Nanoparticles and Their Adsorption Performances of Congo Red
Magnetic Co0.5Zn0.5Fe2O4 nanoparticles were prepared successfully via a solution combustion process, the morphology, structure, and composition of as-prepared Co0.5Zn0.5Fe2O4 nanoparticles were investigated by XRD, SEM, and TEM. The experimental results showed that the volume of absolute alcohol and the calcination temperature were two key factors for the preparation of the magnetic Co0.5Zn0.5Fe2O4 nanoparticles. And the adsorption performances of congo red (CR) onto Co0.5Zn0.5Fe2O4 nanoparticles at room temperature were investigated. The kinetics data related to the adsorption of CR from aqueous solutions were in good agreement with the pseudo-second-order kinetic model in a range of initial concentration of 50—400 mg/L. Compared with the Langmuir and Temkin models for adsorption isotherm of CR, the Freundlich model could be used to evaluate the adsorption isotherm of CR onto Co0.5Zn0.5Fe2O4 nanoparticles at room temperature based on the values of the correlation coefficients and the data errors.
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Document Type: Research Article
Affiliations: Affiliated Kunshan Hospital, Jiangsu University, Kunshan 215300, P. R. China
Publication date: August 1, 2017
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