Cocoa pod activated carbon prepared by ortho-phosphoric acid activation and used for the sequestration of Lumefantrine, an antimalarial drug from solution. EDX, FTIR and SEM characterization methods were used to elucidate the textural characteristics and morphological features of the adsorbent surface. Results from these characterization methods show that the CPHAC contains a high percentage of carbon, basic functional groups such as the hydroxyl groups and well-developed cylindrical pores on the surface. Batch adsorption studies were conducted to show the influence of agitation time, initial LUMF concentration and solution temperature on the adsorption process. At 303 K, maximum percentage removal of 90.9% was obtained at 20 mg/L initial LUMF concentration. Four models of isotherm were used to test experimental data, out of which the Langmuir isotherm model gave the best fit with an R² value of 0.9934 at 303 K. The nature of adsorption was physical in nature as mean free energy of the d-R isotherm model was 0.745 kJ/mol. Maximum monolayer sorption capacity of 79.365 mg/g was recorded at 303 K and the pseudo-second-order kinetic model best explains the kinetics of adsorption. Thermodynamic studies reveal that the adsorption process was spontaneous, feasible and endothermic in nature. CPHAC proved to be very efficient in sequestering Lumefantrine drug from solution.

通过正磷酸活化制备的可可豆活性炭，用于从溶液中螯合 Lumefantrine，一种抗疟药。EDX、FTIR和SEM表征方法用于阐明吸附剂表面的纹理特征和形态特征。这些表征方法的结果表明，CPHAC 含有高百分比的碳、碱性官能团（如羟基）和表面发达的圆柱孔。进行批量吸附研究以显示搅拌时间、初始 LUMF 浓度和溶液温度对吸附过程的影响。在 303 K 时，在 20 mg/L 初始 LUMF 浓度下获得了 90.9% 的最大去除百分比。四种等温线模型用于测试实验数据，²值在 303 K 时为 0.9934。吸附性质是物理性质，因为d -R 等温线模型的平均自由能为 0.745 kJ/mol。在 303 K 下记录的最大单层吸附容量为 79.365 mg/g，伪二级动力学模型最好地解释了吸附动力学。热力学研究表明吸附过程是自发的、可行的和吸热的。CPHAC 被证明在从溶液中隔离 Lumefantrine 药物方面非常有效。