In this study, the oxidized multiwalled carbon nanotube (O-MWCNTs) was obtained by a simple method, and investigated by various techniques (SEM, TEM, FT-IR, XPS and zeta potential) for the removal of pefloxacin and Cu(II). The mutual effects of their adsorption onto O-MWCNTs were comprehensively clarified with sole and binary systems with adsorption kinetics, sorption thermodynamic and sorption isotherm models. The results indicated that there are site enhancement and competition of pefloxacin and Cu(II) on O-MWCNTs. According to mechanism investigation on the adsorption of pefloxacin and Cu(II) by XPS analysis, pH impact study, electrostatic interaction and π–π interactions, the low concentration of Cu(II)/pefloxacin could act as a bridge between pefloxacin/Cu(II) and O-MWCNTs, which significantly enhances the adsorption of pefloxacin/Cu(II). This study provided effective method and valuable reference for the elimination of pefloxacin/Cu(II) from aquatic environments.

在这项研究中，通过一种简单的方法获得了氧化的多壁碳纳米管（O-MWCNTs），并通过各种技术（SEM，TEM，FT-IR，XPS和zeta电位）进行了研究，以去除培氟沙星和Cu（II） 。通过单一和二元体系，利用吸附动力学，吸附热力学和吸附等温线模型，全面阐明了它们吸附在O-MWCNTs上的相互影响。结果表明，O-MWCNTs上存在培氟沙星和Cu（II）的位点增强和竞争。根据XPS分析，pH影响研究，静电相互作用和π-π相互作用对培氟沙星和Cu（II）吸附的机理研究，低浓度的Cu（II）/培氟沙星可以充当培氟沙星/ Cu（II）之间的桥梁。 II）和O-MWCNT，可显着增强培氟沙星/ Cu（II）的吸附。