The present study aimed to prepare an aluminum-based nanoflower (Al-NF) adsorbent using wasted aluminum polishing solution as raw materials, which effectively isolated the residues of anti-epidemic related drugs (lopinavir (LPV) and ciprofloxacin (CIP)) from wastewater. A comprehensive characterization approach involving SEM, XRD, BET, TGA, FTIR, and XPS was employed to investigate the adsorption capacity and mechanism of Al-NF towards LPV and CIP. The results revealed that the adsorption process involved both homogeneous and non-homogeneous interactions between the LPV/CIP molecules and the Al-NF surface. According to the Langmuir model calculations, the maximum adsorption capacities of Al-NF for LPV and CIP at 293.15 K were determined to be 32.41 mg/g and 14.43 mg/g, respectively, while their adsorption kinetics followed a pseudo-second-order model more appropriately. Furthermore, the spontaneous exothermic nature of LPV/CIP adsorption on Al-NF was confirmed by thermodynamic analysis. The mechanism investigations indicated that hydrogen bonding, electrostatic interaction, π-π bonding interaction, as well as n-π EDA bonding collectively contributed to the overall adsorption process on the Al-NF surface for both LPV and CIP species. Additionally, the reusability demonstrated by Al-NF highlights its potential as a promising low-cost material for removing anti-epidemic related drug residues from wastewater utilizing industrial hazardous wastes.

中文翻译：

---

利用废铝抛光液提取的铝基纳米花吸附剂有效分离废水中残留抗疫药物


本研究旨在以废铝抛光液为原料制备铝基纳米花（Al-NF）吸附剂，有效分离废水中的抗疫相关药物洛匹那韦（LPV）和环丙沙星（CIP）残留。 。采用 SEM、XRD、BET、TGA、FTIR 和 XPS 等综合表征方法研究 Al-NF 对 LPV 和 CIP 的吸附能力和吸附机制。结果表明，吸附过程涉及 LPV/CIP 分子与 Al-NF 表面之间的均质和非均质相互作用。根据Langmuir模型计算，确定Al-NF在293.15 K时对LPV和CIP的最大吸附容量分别为32.41 mg/g和14.43 mg/g，其吸附动力学遵循伪二阶模型更合适。此外，热力学分析证实了LPV/CIP吸附在Al-NF上的自发放热性质。机理研究表明，氢键、静电相互作用、π-π键相互作用以及n-π EDA键共同促进了LPV和CIP物质在Al-NF表面的整体吸附过程。此外，Al-NF所表现出的可重复使用性凸显了其作为一种有前景的低成本材料的潜力，可用于利用工业危险废物从废水中去除抗流行病相关的药物残留。