典型文献
Experimental and theoretical insights into copper phthalocyanine-based covalent organic frameworks for highly efficient radioactive iodine capture
文献摘要：
Exploring efficient materials for capturing radioactive iodine in nuclear waste is of great significance for the progress of nuclear energy as well as the protection of ecological environment.Covalent organic frameworks(COFs)have emerged as promising adsorbents because of their predesignable and function-alizable skeleton structures.However,it remains a grand challenge to achieve large scale preparation of COFs.In this work,we developed a mild and efficient microwave irradiation method instead of the traditional solvothermal method to prepare copper phthalocyanine-based covalent organic frameworks(CuxPc-COFs)within only 15 min.The nitrogen-rich 1,2,4,5-tetracarbonitrilebenzene(TCNB)was selected as the solely organic ligand to construct copper phthalocyanine-based 2D conjugated COFs.The resultant CuxPc-COFs exhibited excellent iodine enrichment with 2.99 g/g for volatile iodine and 492.27 mg/g for iodine-cyclohexane solution,respectively,outperforming that of many porous materials.As indicated by spectroscopic analysis and DFT calculations,this impressive adsorption performance can be attributed to the charge transfer arising from nitrogen-rich phthalocyanine structures and electron-rich π-conjugated systems with iodine molecules.Moreover,the strong electrostatic interaction between Cu(Ⅱ)on chelate centers and polyiodide anions(Ix-)also play an important role in the firmly trapping radioactive iodine.Therefore,this study provides a facile and intelligent approach to implement metal-based COFs for the remediation of toxic radioactive iodine.
文献关键词：
中图分类号：
作者姓名：
Xuewei Liu;Anrui Zhang;Ran Ma;Bo Wu;Tao Wen;Yuejie Ai;Mingtai Sun;Jie Jin;Suhua Wang;Xiangke Wang
作者机构：
MOE Key Laboratory of Resources and Environmental Systems Optimization,College of Environment and Chemical Engineering,North China Electric Power University,Beijing 102206,China;Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control,School of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China
文献出处：
引用格式：
[1]Xuewei Liu;Anrui Zhang;Ran Ma;Bo Wu;Tao Wen;Yuejie Ai;Mingtai Sun;Jie Jin;Suhua Wang;Xiangke Wang-.Experimental and theoretical insights into copper phthalocyanine-based covalent organic frameworks for highly efficient radioactive iodine capture)[J].中国化学快报（英文版）,2022(07):3549-3555
A类：
predesignable,alizable,CuxPc,tetracarbonitrilebenzene,TCNB,Ix
B类：
Experimental,theoretical,insights,into,copper,phthalocyanine,covalent,organic,frameworks,highly,efficient,radioactive,iodine,capture,Exploring,materials,capturing,nuclear,waste,great,significance,progress,energy,well,protection,ecological,environment,Covalent,COFs,have,emerged,promising,adsorbents,because,their,function,skeleton,structures,However,remains,grand,challenge,achieve,large,scale,preparation,In,this,developed,mild,microwave,irradiation,method,instead,traditional,solvothermal,prepare,within,only,nitrogen,selected,solely,ligand,construct,2D,conjugated,resultant,exhibited,excellent,enrichment,volatile,cyclohexane,solution,respectively,outperforming,that,many,porous,indicated,by,spectroscopic,analysis,DFT,calculations,impressive,adsorption,performance,attributed,charge,transfer,arising,from,electron,systems,molecules,Moreover,strong,electrostatic,interaction,between,chelate,centers,polyiodide,anions,also,play,important,role,firmly,trapping,Therefore,study,provides,facile,intelligent,approach,implement,metal,remediation,toxic
AB值：
0.572281
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