Abstract
Malachite green adsorption characteristics of magnetic beads have been investigated by batch and column methods. The maximum removal percentage of malachite green (93.9 %) was obtained at pH 7–8. The Langmuir and Freundlich isotherms were used to investigate the adsorption equilibrium. It was found that the Freundlich model provides the best correlation with the equilibrium. In the column method, the BDST model was used to obtain an empirical relationship for the design of the adsorption column. The characterization of the prepared magnetic beads has been accomplished by FTIR, SEM, and XRD measurements.
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The authors are thankful to UGC-DAE, consortium for scientific research, Indore, India for XRD and SEM analysis and Central Drug Research Institute (CDRI), Lucknow, India for FTIR analysis.
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Soni, A., Tiwari, A. & Bajpai, A.K. Removal of malachite green from aqueous solution using nano-iron oxide-loaded alginate microspheres: batch and column studies. Res Chem Intermed 40, 913–930 (2014). https://doi.org/10.1007/s11164-012-1011-1
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DOI: https://doi.org/10.1007/s11164-012-1011-1