The presence of bisphenols in water systems is potentially dangerous on the environment and public health. In this study, a multiaperture polymer of hydroxypropyl-β-cyclodextrin (HP-β-CD) was prepared with tetrafluoroterephthalonitrile as crosslinker, and was applied to remove bisphenols (BPA, BPS and BPF) from water. Influence factors affecting the adsorption efficiency of the HP-β-CD polymer were investigated separately, including adsorption time, adsorbent doses, initial concentration of bisphenols and temperature. HP-β-CD polymer presents fast adsorption kinetics toward bisphenols, attaining 95% of adsorption equilibrium uptake for BPA within the first min and 90% of equilibrium uptake for BPS and BPF in 10 min. The kinetics data fitted well with pseudo-second-order kinetics model. The adsorption isotherms of HP-β-CD polymer toward bisphenols are well described by Freundlich adsorption model, suggesting heterogeneous active sites for bisphenols on the adsorbent. In addition, the HP-β-CD polymer can be easily recycled through a simple washing process with no change in performance. The adsorption ratio of bisphenols can still achieve 100% within a certain flow rate in flow-through experiments, also proving its fast adsorption ability toward bisphenols. In a word, HP-β-CD polymer exhibits effective performance in the removal of the three bisphenols with fast adsorption kinetics, easy regeneration, and excellent reusability.

水系统中双酚的存在可能对环境和公共健康构成危险。在这项研究中，以四氟对苯二甲腈为交联剂制备了羟丙基-β-环糊精（HP-β-CD）的多孔径聚合物，并用于从水中去除双酚（BPA，BPS和BPF）。分别研究了影响HP-β-CD聚合物吸附效率的因素，包括吸附时间，吸附剂量，双酚的初始浓度和温度。HP-β-CD聚合物对双酚具有快速的吸附动力学，在开始的一分钟内对BPA的吸附平衡吸收达到95％，在10分钟内对BPS和BPF的吸附平衡吸收达到90％。动力学数据与拟二阶动力学模型非常吻合。Freundlich吸附模型很好地描述了HP-β-CD聚合物对双酚的吸附等温线，表明双酚在吸附剂上的异质活性中心。另外，HP-β-CD聚合物可通过简单的洗涤过程轻松回收，而性能不会改变。在流通实验中，双酚在一定流量下的吸附率仍可达到100％，也证明了其对双酚的快速吸附能力。简而言之，HP-β-CD聚合物在去除三种双酚方面显示出有效的性能，具有快速的吸附动力学，易于再生和出色的可重复使用性。HP-β-CD聚合物可通过简单的洗涤过程轻松回收利用，而性能不会改变。在流通实验中，双酚在一定流量下的吸附率仍可达到100％，也证明了其对双酚的快速吸附能力。简而言之，HP-β-CD聚合物在去除三种双酚方面显示出有效的性能，具有快速的吸附动力学，易于再生和出色的可重复使用性。HP-β-CD聚合物可通过简单的洗涤过程轻松回收利用，而性能不会改变。在流通实验中，双酚在一定流量下的吸附率仍可达到100％，也证明了其对双酚的快速吸附能力。简而言之，HP-β-CD聚合物在去除三种双酚方面显示出有效的性能，具有快速的吸附动力学，易于再生和出色的可重复使用性。