ADSORBTION OF Pb2+ ONTO CHITIN GRAFTED WITH ACRYLIC ACID AFTER ITS SURFACE MODIFICATION BY COLD PLASMA TECHNOLOGY
Nguyễn Văn Sức
Trịnh Ngọc Châu
Abstract
The grafing process of acrylic acid on the chitin surface extracted from shrimp shell after treatment by cold plasma was enhanced the adsorption ability of Pb2+ ions. The adsorption process of modified chitin for Pb2+ ions followed the Freundlich isotherm model. The maximum adsorption capacity was found to be 64,1 mg/g at pH 5 and 90 min contact time.
