Preparation of Chitosan Grafted by Vanillin Under Microwave Radiation and Its Adsorption Property

Abstract

Abstract: Chitosan was grafted with vanillin under microwave radiation. The product was characterized through IR and XRD and its adsorption property was investigated. The result indicated that the rate of the reaction of chitosan modification was greatly enhanced under microwave radiation. The grafted chitosan had a higher adsorption capacity and adsorption speed for metal ions than the unmodified chitosan. Under normal temperature, the former's adsorption capacities for Cu 2+ , Ni 2+ , Zn 2+ , Pb 2+ were 195.5, 107.7, 143.7, 97.5 mg·g -1 respectively, and its adsorption for metal ions could be saturated in 2 hours.

Key words: utanol, acetone, extraction, separation, save energ

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Preparation of Chitosan Grafted by Vanillin Under Microwave Radiation and Its Adsorption Property

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