Uranyl Ion Uptake Properties of Highly Swollen AAm/SA/GEL/PVA Semi IPNs as Novel Biosorbent

In this study, uranyl ion adsorption from aqueous solutions has been investigated by highly swollen gelatin and poly(vinyl alcohol) based semi-interpenetrating polymer network systems of acrylamide/sodium acrylate. For this, chemically cross-linked copolymer of acrylamide/sodium acrylate hydrogels with gelatin and/or poly(vinyl alcohol) were prepared by free radical polymerization in an aqueous solution of acrylamide and sodium acrylate using ammonium persulfate/N,N,N,N-tetramethylethylenediamine as redox initiating pair in the presence of poly(ethylene glycol)diacrylate as a cross linker. Adsorption studies were investigated by spectrophotometric method at 25 degrees C. Sorption capacity, removal efficiency, and partition coefficient of the hydrogels were investigated. Removal efficiency was changed within a range of 7.06-33.03%.