Porous β-cyclodextrin nanotubular assemblies enable high-efficiency removal of bisphenol micropollutants from aquatic systems  

作　　者：Wenya He Xiaoyan Ren Zhiqiang Yan Jin Wang Lehui Lu 

机构地区：[1]State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun130022,China [2]University of Chinese Academy of Sciences,Beijing 100039,China [3]Department of Chemistry&Physics,State University of New York at Stony Brook,Stony Brook,New York 11790,USA

出　　处：《Nano Research》2020年第7期1933-1942,共10页纳米研究（英文版）

基　　金：the National Key Research and Development Program of China(No.2016YFA0203200);the National Natural Science Foundation of China(Nos.21721003 and 21874127);K.C.Wong Education Foundation.

摘　　要：The performance of water purification by adsorption method has been limited owing to the fact that most of current available adsorbents fail to achieve satisfactory removal performance for organic micropollutants.Herein,we report the design and synthesis of novel porous polymeric adsorbent built fromβ-cyclodextrin(B-CD),in whichβ-CD molecules are arranged in an ordered bis(β-CD)tubular assemblies.The induction of bis(B-CD)units renders them high adsorption affinity toweard bisphenols(bisphenol A and its analogues bisphenol B,bisphenol F and bisphenol S),the typical endocrine disruptors,via the formation of stable host-guest inclusion complexes in aquatic systems.In combination with their high porosity(Brunauer-Emmett-Teller(BET)surface area of 150 m2·g-1),abundantβ-CD content and fast sorption kinetics,the obtained adsorbent outperforms commercial water purifier in elimination of bisphenol micropollutants from potable water.Our work may open a new avenue for designing highly eficient adsorbents for removal of organic micropollutants from aquatic systems.

关 键 词：water remediation bisphenol micropollutant polymeric p-cyclodextrin(β-CD) binding affinity β-CD dimer 

分 类 号：O64[理学—物理化学] TB383[理学—化学]