Magnetic Nanoparticles Impregnated, Cross-Linked, Porous Chitosan Microspheres for Efficient Adsorption of Methylene Blue from Pharmaceutical Waste Water
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The study demonstrates the preparation of MnFe2O4 impregnated chitosan-microspheres (CMMS) as adsorbents for efficient removal of cationic thiazine dye, methylene blue. A facile approach with great economic and technical advantages to obtain highly crystalline manganese ferrite nanoparticles by solution combustion method is accounted. CMMS were characterized and evaluated for MB adsorption using linear forms of Freundlich and Langmuir adsorption isotherms, pseudo-first order, pseudo-second order and Elovich kinetic models. Application of CMMS to pharmaceutical waste, desorption of MB and reusability of CMMS are reported. Significantly, MB concentration in treated real sample was reduced by ~ 18 times to that of initial concentration.
KeywordsManganese ferrite Chitosan Adsorption Kinetics Methylene blue
Authors acknowledge Center for Nano and Material Sciences, Jain University, Bangalore, India and S S Membranes Co., Ltd., Bangkok, Thailand. This research is also supported by Rachadapisek Sompote Fund for Postdoctoral Fellowship, Chulalongkorn University.
- 32.Anderson MA, Rubin AJ (1981) Adsorption of inorganics at solid-liquid interfaces. Ann Arbor Science, Ann ArborGoogle Scholar
- 33.Freundlich H (1907) Über die adsorption in lösungen. Z Phys Chem 57:385–470Google Scholar