▎ 摘　　要

Anticancer drugs are widely used in cancer treatment and can be detected in hospital effluents, wastewater treatment plant effluents and river water samples. The removal of paclitaxel (PTX), a highly toxic anticancer agent used in a variety of cancers, is investigated in this study using magnetic Fe3O4/multi-walled carbon nanotube (MWCNT) and Fe3O4/graphene oxide (GO) nanocomposite adsorbents synthesized via co-precipitation. FESEM/EDX, TEM, XRD, FTIR and VSM analysis were used to characterize the morphological and structural properties of the fabricated nanoadsorbents. Both Fe3O4/MWCNT and Fe3O4/GO that adsorbed PTX could rapidly achieve good separation from the solution when subjected to an external magnetic field. The effect of pH on adsorption capacity was investigated, where pH 7 demonstrated the highest adsorption efficiency. Comparing prepared magnetic carbonic adsorbents revealed that Fe3O4/MWCNT has a superior adsorption capability to Fe3O4/GO, with Fe3O4/MWCNT removing 58% of PTX after 60 min versus Fe3O4/GO removing 52%. Additionally, the adsorption was best fit to the pseudo-second-order kinetics and Langmuir isotherm models. Adsorption activation energy and isosteric heat of adsorption was also calculated for Fe3O4/MWCNT and Fe3O4/GO adsorbents. Finally, the reusability and stability of the adsorbents were investigated, with only an 8% reduction detected after 5 cycles.