典型文献
Polyamide Nanofiltration Membrane from Surfactant-assembly Regulated Interfacial Polymerization of 2-Methylpiperazine for Divalent Cations Removal
文献摘要:
R emoval of metal ions from water can not only alleviate the scaling problem of domestic and industrial water,but also solve the water safety problem caused by heavy metal ion pollution.Here,we fabricate a positively charged nanofiltration membrane via surfactant-assembly regulated interfacial polymerization(SARIP)of 2-methylpiperazine(MPIP)and trimesoyl chloride(TMC).Due to the existence of methyl substituent,MPIP has lower reactive activity than piperazine(PIP)but stronger affinity to hexane,resulting in a nanofiltration(NF)membrane with an opposite surface charge and a loose polyamide active layer.Interestingly,with the help of sodium dodecyl sulfate(SDS)assembly at the water/hexane,the reactivity between MPIP and TMC was obviously increased and caused in turn the formation of a positively charged polyamide active layer with a smaller pore size,as well as with a narrower pore size distribution.The resulting membrane shows a highly efficient removal of divalent cations from water,of which the rejections of MgCl2,CoCl2 and NiCl2 are higher than 98.8%,98.0%and 98.0%,respectively,which are better than those of most of other positively charged NF membranes reported in literatures.
文献关键词:
中图分类号:
作者姓名:
GONG Li;ZHU Yuzhang;DONG Dianyu;ZHANG Yuping;GUI Liangliang;JIN Jian
作者机构:
College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,P.R.China;i-Lab,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,P.R.China
文献出处:
引用格式:
[1]GONG Li;ZHU Yuzhang;DONG Dianyu;ZHANG Yuping;GUI Liangliang;JIN Jian-.Polyamide Nanofiltration Membrane from Surfactant-assembly Regulated Interfacial Polymerization of 2-Methylpiperazine for Divalent Cations Removal)[J].高等学校化学研究(英文版),2022(03):782-789
A类:
Methylpiperazine,emoval,SARIP,methylpiperazine,MPIP,piperazine
B类:
Polyamide,Nanofiltration,Membrane,from,Surfactant,assembly,Regulated,Interfacial,Polymerization,Divalent,Cations,Removal,metal,water,can,not,only,alleviate,scaling,problem,domestic,industrial,also,solve,safety,caused,by,heavy,pollution,Here,fabricate,positively,charged,nanofiltration,surfactant,regulated,interfacial,polymerization,trimesoyl,chloride,TMC,Due,existence,substituent,has,lower,reactive,than,stronger,affinity,hexane,resulting,opposite,surface,loose,polyamide,layer,Interestingly,help,sodium,dodecyl,sulfate,SDS,reactivity,between,was,obviously,increased,turn,formation,smaller,pore,size,well,narrower,distribution,shows,highly,efficient,removal,divalent,cations,which,rejections,MgCl2,CoCl2,NiCl2,are,higher,respectively,better,those,most,other,membranes,reported,literatures
AB值:
0.582963
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