▎ 摘　　要

Synthesized Fe-0-rGO nanocomposite with ratio of 1/1 (w/w) was prepared and has been used as adsorbent for the removal of Carbamazepine (CBZ) from aqueous solution. The adsorbent was characterized by various techniques such as Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Field Emission Scanning Electron Microscopy (FE-SEM) analyses. Linear experiments were performed to compare the best fitting isotherms and kinetics. The Freundlich isotherm (R-2>0.90) and pseudo second order kinetic (R-2>0.99) fitted well the experimental data. On the basis of the Langmuir isotherm, the maximum adsorption capacity of Fe-0-rGO for CBZ was up to 50 mg g(-1) at 30 degrees C. The pH, adsorbent dose, and initial concentration of CBZ were observed to be the leading parameters that affected the removal of CBZ considering the analysis of variance (ANOVA; p<0.05). The optimum process value of variables obtained by numerical optimization corresponds to pH 3.07, an adsorbent dose of 36.2 mg, an initial CBZ concentration of 5 mg L-1 and at 30.15 degrees C. The results of optimum conditions reveal that a maximum of 94% removal efficiency can be achieved; whereas, this phenomenon was independent of temperature (p value>0.05). Moreover, Fe-0-rGO can be used to remove diclofenac (DIC) and cetirizine (CTZ) simultaneously. To sum up, the Fe-0-rGO is promising adsorbents not only for the efficient removal of CBZ but also for the reduction of coexisting drugs in aqueous solution. HIGHLIGHTS The nanocomposite was successfully synthesized. The adsorption of three hard to remove drug were investigated. The effect of various parameters on CBZ removal were determined. The optimum condition for CBZ removal was obtained. The interference of coexisting drugs on CBZ adsorption were investigated.