Fungicides that are broadly used in agriculture for plant protection may move into and contaminate water through subsurface drainage or leaching. The removal of fungicide residue has attracted scholars’ attentions mostly owing to their ecotoxicological risks. Researchers in parallel have led attempts to investigate the adsorption potency of the exceptional features of metal–organic frameworks (MOFs) such as extremely high surface area, high thermal, chemical stabilities, and a porous structure with tunable pore sizes. The MIL-101(Cr) was prepared by hydrothermal procedure and was characterized by different techniques. It was introduced as an effective adsorbent for removing propiconazole fungicide from aqueous solutions. Design-Expert software was used for process optimization. The effect and interactions of different factors such as temperature, adsorbent concentration, contact time, pH, and initial concentration were investigated. After the preliminary screening tests, response surface methodology based on the central composite design was utilized to optimize the adsorption process. About 90% of propiconazole was removed at the optimum conditions. The study of the adsorption mechanism was performed by Langmuir and Freundlich isotherm models. The kinetics of the adsorption system were examined by comparing the pseudo-first-order, pseudo-second-order, and Morris–Weber models. Adsorption of propiconazole reached equilibrium in 100 min. The maximum adsorption capacity obtained for MIL-101(Cr) based on pseudo-second-order model was 89.78 mg/g. Finally, the proposed adsorbent was used for five consecutive cycles without washing steps; its removal efficiency was reduced by about 21% and also regeneration of adsorbent with different solvents was carried out and the best reusability was achieved by ethanol.

在农业中广泛用于植物保护的杀菌剂可能会通过地下排水或浸出而进入水中并受到污染。杀菌剂残留物的去除由于其生态毒理学风险而引起了学者的关注。并行进行的研究人员尝试研究金属-有机骨架（MOF）异常特征的吸附能力，例如极高的表面积，高的热稳定性，化学稳定性以及孔径可调的多孔结构。MIL-101（Cr）是通过水热法制备的，并通过不同的技术进行了表征。引入它作为从水溶液中去除丙环唑杀菌剂的有效吸附剂。设计专家软件用于过程优化。不同因素（例如温度，研究了吸附剂的浓度，接触时间，pH和初始浓度。经过初步筛选测试后，基于中心复合设计的响应表面方法被用于优化吸附过程。在最佳条件下去除了大约90％的丙环唑。用Langmuir和Freundlich等温模型对吸附机理进行了研究。通过比较伪一级模型，伪二级模型和Morris-Weber模型检查了吸附系统的动力学。丙环唑的吸附在100分钟内达到平衡。基于伪二级模型获得的MIL-101（Cr）的最大吸附容量为89.78 mg / g。最后，所提出的吸附剂连续使用了五个周期而没有洗涤步骤。