Wastewater containing pharmaceuticals can be bioaccumulated, posing a potential risk to drinking water, human health, and ecosystems. In order to make the adsorption process more suitable for actual application, rape straw biomass fiber (treated by an acidified sodium chlorite solution, 5%) and Fe₃O₄ embedded β-CD to prepare a novel adsorbent (RSBCDF), which was used for the removal of ibuprofen (IBP) from aqueous solution. The RSBCDF was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET) measurements, scanning electron microscopy (SEM), and zeta potential measurements. The synthesized adsorbent was studied with regard to IBP removal percent under different adsorption conditions such as varying initial pH levels (4–10), initial ibuprofen concentrations (20−160 mg/L), contact time (5−150 min), and the dosage of adsorbent (10−100 mg) via batch adsorption experiments. The adsorption kinetics, thermodynamics, and isotherms were also investigated. The IBP adsorption behaviour followed a pseudo-second-order kinetic model and the Freundlich isotherm model. The maximum adsorption capacity obtained for ibuprofen was 48.29 mg/g. The values of Gibbs free energy change were negative (-2.58∼-3.56KJ/mol), suggesting that the process of ibuprofen adsorption onto adsorbent was spontaneous. The positive value of standard enthalpy change (12.09 kJ/mol) indicated that the adsorption process was endothermic. The obtained results prove that RSBCDF is a proficient and economically suitable material for removing IBP from water environments.

含有药物的废水可以生物累积，对饮用水、人类健康和生态系统构成潜在风险。为了使吸附过程更适合实际应用，油菜秸秆生物质纤维（经酸化亚氯酸钠溶液处理，5%）和Fe ₃ O ₄嵌入β-CD制备新型吸附剂（RSBCDF），用于从水溶液中去除布洛芬（IBP）。RSBCDF 通过 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、Brunauer-Emmett-Teller (BET) 测量、扫描电子显微镜 (SEM) 和 zeta 电位测量进行表征。研究了合成的吸附剂在不同吸附条件下的 IBP 去除百分比，例如不同的初始 pH 值（4-10）、初始布洛芬浓度（20-160 毫克/升）、接触时间（5-150 分钟）和通过批量吸附实验的吸附剂剂量（10-100 mg）。还研究了吸附动力学、热力学和等温线。IBP 吸附行为遵循准二级动力学模型和 Freundlich 等温线模型。对布洛芬获得的最大吸附容量为 48.29 毫克/克。吉布斯自由能变化为负值（-2.58∼-3.56KJ/mol），表明布洛芬吸附到吸附剂上的过程是自发的。标准焓变的正值 (12.09 kJ/mol) 表明吸附过程是吸热的。获得的结果证明 RSBCDF 是一种从水环境中去除 IBP 的有效且经济的材料。