A N effective and facial method for removal of lead(II), copper(II) and Nickel(II) ions from aqueous solutions, is based on investigating a new modified graphene oxide, by appealing interaction between graphene oxide GO and 4-amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5one(4-aminoantipyrine).The adsorbent is fully characterized by FT-IR, XRD, SEM, EDX, TEM, and Raman spectroscopy.The GO was prepared ...