Abstract Ionic liquids (ILs) are considered as emergent pollutants as their synthesis and further use at a large scale might generate environmental problems. The adsorption on activated carbons represents one of the most effective methods to remove ionic liquids and other micropollutants from wastewater. In this work, the adsorption properties on an activated carbon cloth of two pyridinium ionic liquids (4-tert-butyl-1-propylpyridinium bromide (IL1) and 4-tert-butyl-1-(2-carboxyethyl)pyridinium bromide (IL2)) newly synthesized, were compared with the ones of ibuprofen. The adsorption kinetics and isotherms were studied at pH 3 and 7.5. The adsorption thermodynamic parameters calculated from the isotherms indicate an exothermic process, typical of physisorption. The adsorption kinetics of a mixture of the molecules show a competition between ibuprofen and IL2. The location of each adsorbed ionic liquid and ibuprofen into the porosity of the activated carbon cloth was determined from N 2 (at 77 K) and CO 2 adsorption isotherms (at 273 K). The purification process of an effluent containing the ionic liquids and the ibuprofen in mixture or in single solute could be workable by adsorption on an activated cloth.

中文翻译：

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通过吸附在微孔活性炭上去除离子液体和布洛芬：动力学、等温线和孔位

摘要 离子液体 (ILs) 被认为是一种新兴污染物，因为它们的合成和进一步大规模使用可能会产生环境问题。活性炭吸附是去除废水中离子液体和其他微污染物的最有效方法之一。在这项工作中，两种吡啶离子液体（4-叔丁基-1-丙基溴化吡啶（IL1）和4-叔丁基-1-（2-羧乙基）溴化吡啶（IL2）在活性炭布上的吸附性能) 新合成的，与布洛芬的比较。在 pH 3 和 7.5 下研究了吸附动力学和等温线。从等温线计算的吸附热力学参数表明放热过程，典型的物理吸附。分子混合物的吸附动力学表明布洛芬和 IL2 之间存在竞争。由N 2 (在77 K)和CO 2 吸附等温线(在273 K)确定每个吸附的离子液体和布洛芬进入活性炭布孔隙率的位置。含有离子液体和布洛芬的混合物或单一溶质的流出物的净化过程可以通过吸附在活性布上来进行。