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Original Articles Open Access
In the present study the highly toxic metal chromium is removed using Chitosan-g-Maleic anhydride-g-ethylene dimethacrylate. The graft copolymer is synthesized through chain polymerization reaction using Ceric Ammonium Nitrate as the initiator. Graft copolymer was prepared by varying parameters such as monomer concentration, initiator concentration and temperature. The chemical structure and physical properties of prepared Chitosan-g- MA-g-ethylene dimethacrylate copolymer were carried out by various analytical techniques such as Fourier transform resonance spectroscopy (FT-IR), and X-ray diffraction (XRD). Grafting was confirmed by FTIR. X-ray diffraction showed changes in crystalline pattern. Batch adsorption studies are carried out to find the adsorption efficiency of the material prepared by varying the parameters such as adsorbent dose, contact time, pH and initial concentration of the metal solution. The results are fitted with Langmuir and Freundlich isotherm models.
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Author(s): M R Gopal Reddi C Govindharajan P N Sudha and T Gomathi
Polymerization. Chitosan-g-MA, ethylene dimethacrylate, Grafting, Parameters., Adsorption studies