Fang Xiuqin, Wang Chang, Shu Hong-Hui, Han Sheng-Li, Liu Cheng-Mei
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Wuhan 430074, China; The Innovation and Talent Recruitment Base of New Energy Chemistry and Device, Center for Experimental Chemistry, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Carbohydr Polym. 2024 Nov 1;343:122437. doi: 10.1016/j.carbpol.2024.122437. Epub 2024 Jun 26.
Bisphenol A (BPA), a prominent endocrine-disrupting compound, has garnered considerable attention due to its urgent need for rapid removal from water. Herein, we first used a novel reactive phosphine oxide containing tertiary amines as crosslinker to prepare water-insoluble crosslinked β-cyclodextrin (β-CD) adsorbent via radical-mediated thiol-ene polymerization. Owing to the synergistic hydrogen-bond (H-bond) interactions of functional groups (tertiary amine and PO groups) toward BPA, the resulted adsorbents showed fast adsorption kinetics to BPA with an adsorption equilibrium time of 5 min. After six adsorption-desorption cycles, the removal efficiency of BPA was 92.5 %, indicating its excellent reusability. Due to the presence of the CS bonds, the β-CD -derived bio-adsorbents offered binding sites for Cu ions, resulting in a maximum adsorption capacity of 113.89 mg g.
双酚A（BPA）是一种著名的内分泌干扰化合物，因其急需从水中快速去除而备受关注。在此，我们首次使用一种含有叔胺的新型反应性氧化膦作为交联剂，通过自由基介导的硫醇-烯聚合反应制备了水不溶性交联β-环糊精（β-CD）吸附剂。由于官能团（叔胺和PO基团）对BPA的协同氢键（H键）相互作用，所得吸附剂对BPA表现出快速的吸附动力学，吸附平衡时间为5分钟。经过六次吸附-解吸循环后，BPA的去除效率为92.5%，表明其具有优异的可重复使用性。由于CS键的存在，β-CD衍生的生物吸附剂为铜离子提供了结合位点，则其对铜离子的最大吸附容量为113.89mg/g。
