Synthesis and modification of spherical/hollow metal-organic frameworks for efficient extraction of sulfonamides in aqueous environments  

作　　者：Yongxing Sun Kaijun Quan Jia Chen Hui Li Xin Li Zuguang Li Hongdeng Qiu 

机构地区：[1]College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China [2]CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China

出　　处：《Chinese Chemical Letters》2023年第9期270-274,共5页中国化学快报（英文版）

基　　金：supported by the National Key R&D Program of China(No.2019YFC1905501);the National Natural Science Foundation of China(Nos.22104145 and 22174129);Nature Science Foundation of Zhejiang Province(No.LZY21E030001);Natural Science Foundation of Gansu Province(No.21JR7RA078);Youth Collaborative Innovation Alliance Fund of LICP(No.HZJJ21–06);the“Light of West China”Program from Chinese Academy of Science。

摘　　要：In this study,two novel spherical/hollow metal-organic frameworks were successfully synthesized,and further modified by a mild non-covalent modification strategy with dopamine and 1,4-benzenedithiol(BDT)as polymeric monomers to obtain pB DT@PDA-Ni-MOF and p BDT@PDA-Ni/Co-MOF,respectively.The results showed that the above MOFs possessed extremely fast adsorption rates and ideal adsorption capacities for sulfonamides(SAs)and the modified MOFs exhibited enhanced adsorption capacities for SAs owing to a large number of additional functional groups.Then,benefit of their regular morphology and size,a facile syringe-assisted dispersive solid phase extraction(S-DSPE)method was developed for efficient detection of SAs,which will provide a powerful tool for monitoring trace level of SAs in aqueous environment.

关 键 词：Unique spherical/hollow MOFs Copolymer modification Solid phase adsorbents SAs sorptive extraction 

分 类 号：O647.3[理学—物理化学] O641.4[理学—化学] X832[环境科学与工程—环境工程]