Li Zhentao, Hu Changjun, Hu Zhuang, Fu Yuanyuan, Chen Zilin
Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China; State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China.
Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.
Carbohydr Polym. 2022 Jan 15;276:118786. doi: 10.1016/j.carbpol.2021.118786. Epub 2021 Oct 20.
Here, a novel multifunctional β-cyclodextrin microporous organic network (CD-MON) has been successfully synthesized and used to remove bisphenol A (BPA) from water. The morphology and composition of the synthesized CD-MON were confirmed. The combination of hydrophobic interaction, π-π interaction inclusion mechanism and hydrogen bonding endowed CD-MON to exhibit superior adsorption capacity toward BPA. The adsorption kinetics and isotherms of BPA and other four model aromatic pollutants on CD-MON were studied. CD-MON could maintain adsorption efficiency toward BPA over wide pH ranges and without being affected by the ionic strengths, co-existing inorganic ions and humic acid. The optimal conditions and removal efficiency of BPA were screened by response surface analysis. In addition, nearly unchanged in the adsorption efficiency toward BPA was observed after five regeneration cycles on CD-MON. CD-MON can adsorb about 80% of five model aromatic pollutants from the water within 40 s in the flow-through experiments. This novel adsorbent gives great promise for practical wastewater remediation.
在此，一种新型多功能β-环糊精微孔有机网络（CD-MON）已成功合成，并用于从水中去除双酚A（BPA）。对合成的CD-MON的形态和组成进行了确认。疏水相互作用、π-π相互作用包合机制和氢键的结合使CD-MON对BPA表现出优异的吸附能力。研究了BPA和其他四种模型芳香族污染物在CD-MON上的吸附动力学和等温线。CD-MON在很宽的pH范围内对BPA保持吸附效率，且不受离子强度、共存无机离子和腐殖酸的影响。通过响应面分析筛选了BPA的最佳条件和去除效率。此外，在对CD-MON进行五次再生循环后，观察到其对BPA的吸附效率几乎没有变化。在流通实验中，CD-MON能在40秒内从水中吸附约80%的五种模型芳香族污染物。这种新型吸附剂在实际废水修复方面具有广阔前景。
