Removal of phosphate using copper-loaded polymeric ligand exchanger prepared by radiation grafting of polypropylene/polyethylene (PP/PE) nonwoven fabric

摘要: Abstract A novel polymeric ligand exchanger (PLE) was prepared for the removal of phosphate ions from water. 2,2′-dipyridylamine (DPA), a bidentate forming compound with high coordination capacity variety metal bound to glycidyl methacrylate (GMA) grafted polypropylene/polyethylene (PP/PE) nonwoven fabric synthesized by radiation-induced grafting technique. DPA attachment on epoxy ring GMA units tested in different solvents, i.e. methanol, ethanol, dioxane and dimethylsulfoxide (DMSO). The highest amount modification achieved dioxane. In order prepare corresponding PLE phosphate, DPA-immobilized loaded Cu(II) ions. Phosphate adsorption experiments were performed batch mode at pH (5–9) concentrations. found be effective At every stage preparation use, characterized thermal (i.e. DSC TGA) spectroscopic (FTIR) methods. Competitive also carried out using two solutions concentration levels 7 see effect competing selective having trace amounts competitive anions. It is expected that can used low concentrations over large range pH.