In this research, the removal of levulinic acid from aqueous solutions was examined by using clay nano-adsorbents, namely montmorillonite and Cloisite 20A. The batch adsorption experiments were exerted at a different contact time (30–210 min), initial levulinic acid concentrations (20–100 g L⁻¹), adsorbent amounts (0.05–0.25 g), and temperatures (25–45 °C). The equilibrium, kinetic, and thermodynamic data were obtained by using the adsorption capacities of clay nano-adsorbents. It was found that Cloisite 20A exhibited a higher adsorption capacity than montmorillonite. Different adsorption isotherm and kinetic models were utilized to explain the adsorption mechanism and the parameters of these models were determined. Moreover, the thermodynamic analysis was performed to express the adsorption process. For the adsorption of levulinic acid on both clay nano-adsorbents, the adsorption equilibrium data were well represented by the Freundlich isotherm model and the adsorption kinetic data were well characterized by the pseudo-second-order kinetic model for the removal of levulinic acid by two clay nano-adsorbents.

在这项研究中，通过使用粘土纳米吸附剂（蒙脱土和Cloisite 20A）检查了水溶液中乙酰丙酸的去除。在不同的接触时间（30–210分钟），初始乙酰丙酸浓度（20–100 g L ^-1）下进行批量吸附实验），吸附剂量（0.05-0.25 g）和温度（25-45°C）。利用粘土纳米吸附剂的吸附能力获得了平衡，动力学和热力学数据。已发现Cloisite 20A的吸附能力高于蒙脱土。利用不同的吸附等温线和动力学模型来解释吸附机理，并确定了这些模型的参数。此外，进行热力学分析以表达吸附过程。对于乙酰丙酸在两种粘土纳米吸附剂上的吸附，吸附平衡数据由Freundlich等温线模型很好地表示，吸附动力学数据由拟二阶动力学模型很好地表征，用于两次去除乙酰丙酸。粘土纳米吸附剂。