典型文献
Covalent organic frameworks-incorporated thin film composite membranes prepared by interfacial polymerization for efficient CO2 separation
文献摘要:
Thin film composite(TFC)membranes with nanofillers additives for CO2 separation show promising applications in energy and environment-related fields.However,the poor compatibility between nanofil-lers and polymers in TFC membranes is the main problem.In this work,covalent organic frameworks(COFs,TpPa-1)with rich—NH—groups were incorporated into polyamide(PA)segment via in situ inter-facial polymerization to prepare defect-free TFC membranes for CO2/N2 separation.The formed covalent bonds between TpPa-1 and PA strengthen the interaction between nanofillers and polymers,thereby enhancing compatibility.Besides,the incorporated COFs disturb the rigid structure of the PA layer,and provide fast CO2 transfer channels.The incorporated COFs also increase the content of effective carriers,which enhances the CO2 facilitated transport.Consequently,in CO2/N2 mixed gas separation test,the optimal TFC(TpPa0.025-PIP-TMC/mPSf)membrane exhibits high CO2 permeance of 854 GPU and high CO2/N2 selectivity of 148 at 0.15 MPa,CO2 permeance of 456 GPU(gas permeation unit)and CO2/N2 selectivity of 92 at 0.5 MPa.In addition,the TpPa0.025-PIP-TMC/mPSf membrane also achieves high permselectivty in CO2/CH4 mixed gas separation test.Finally,the optimal TFC membrane showes good stability in the simulated flue gas test,revealing the application potential for CO2 capture from flue gas.
文献关键词:
中图分类号:
作者姓名:
Haoqing Xu;Wenyan Feng;Menglong Sheng;Ye Yuan;Bo Wang;Jixiao Wang;Zhi Wang
作者机构:
Chemical Engineering Research Center,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China;Tianjin Key Laboratory of Membrane Science and Desalination Technology,State Key Laboratory of Chemical Engineering,Collaborative Innovation Center of Chemical Science and Engineering,Tianjin University,Tianjin 300350,China;Life and Health Research Institute,School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China
文献出处:
引用格式:
[1]Haoqing Xu;Wenyan Feng;Menglong Sheng;Ye Yuan;Bo Wang;Jixiao Wang;Zhi Wang-.Covalent organic frameworks-incorporated thin film composite membranes prepared by interfacial polymerization for efficient CO2 separation)[J].中国化学工程学报(英文版),2022(03):152-160
A类:
nanofil,lers,TpPa0,mPSf,permselectivty,showes
B类:
Covalent,organic,frameworks,incorporated,thin,film,composite,membranes,prepared,interfacial,polymerization,efficient,separation,Thin,TFC,nanofillers,additives,promising,applications,energy,environment,related,fields,However,poor,compatibility,between,polymers,main,problem,In,this,covalent,COFs,rich,NH,groups,were,into,polyamide,PA,segment,via,situ,defect,free,N2,formed,bonds,strengthen,interaction,thereby,enhancing,Besides,disturb,rigid,structure,layer,provide,fast,transfer,channels,also,increase,content,effective,carriers,which,enhances,facilitated,transport,Consequently,mixed,gas,test,optimal,PIP,TMC,exhibits,high,permeance,GPU,selectivity,permeation,unit,addition,achieves,CH4,Finally,good,stability,simulated,flue,revealing,potential,capture,from
AB值:
0.47556
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