Removing of some heavy metals from cutting rock samples by using nano graphene oxide

Abstract

A modified Totland's approach was used to separate and preconcentrate trace elements from cutting rock samples obtained from different depths of oil fields in Maysan Province, Iraq. FT-IR, UV-Vis spectrophotometer, (XRD) X-ray diffraction spectroscopy, (ZP) Zeta potential analyzer, and (FESEM) field emission scanning electronic microscopy, were used to characterize (NGO) nano graphene oxide, synthesized by a modified Hummer's method. The (SPME) method solid phase micro extraction method employed to remove the trace elements (Mg, Co, Ni, Cu, Cd, and Pb) from cutting rock samples under the optimum conditions. The average concentrations of Magnesium, Cobalt, Nickel, Copper, Cadmium, and Lead, the average concentrations in cutting rock samples (direct technique) were (9.72 g/mL), (1.318 g/mL), (5.646 g/mL), (0.616 g/mL), (0.567 g/mL), and (9.296 g/mL). The average element concentrations by SPME technique (2.082 g/mL), (0.24 g/mL), (1.066 g/mL), (0.162 g/mL), (0.055 g/mL), and (2.153 g/mL) for Magnesium, Cobalt, Nickel, Copper, Cadmium, and Lead, respectively were decreased, confirming the chemical adsorption process on the (NGO) surface sheets.