常州大学学报（自然科学版）2025，Vol.37Issue(5)：8-18,11.DOI:10.3969/j.issn.2095-0411.2025.05.002
原位聚合碳量子点改性聚酰胺膜与乙醇脱水分离性能
Modification of polyamide membrane with quantum dots via in situ polymerization and separation performance of ethanol dehydration
摘要
Abstract
Carbon quantum dots(CQDs)were in situ polymerized into membranes by using interfacial polymerization to obtain quantum dots modified polyamide thin-film composite membranes(CQDs-PA/HPAN).The physical structure and chemical properties of CQDs and the membranes were char-acterized by Fourier Transform Infrared Spectroscopy(FT-IR),Transmission Electron Microscopy(TEM),Scanning Electron Microscopy(SEM)and Water Contact Angle(WCA).The effect of CQDs content on the membrane structure and separation performance of ethanol dehydration was in-vestigated,and the effect of feed temperature and water content in the feed on the separation perform-ance of CQDs-PA/HPAN membranes was further tested.The separation performance of CQDs-PA/HPAN membrane was higher than that of control PA/HPAN membrane when processing 10%aque-ous solution at 76℃.Specially,the CQDs(0.2)-PA/HPAN membrane exhibited the best separa-tion performance with the permeation flux of 3 837 g/(m2·h)and the separation factor of 2 145.Furthermore,the separation performance of CQDs(0.2)-PA/HPAN membrane remained almost unchanged after continuous operation for 144 h,indicating that it has good separation stability.关键词
碳量子点/原位聚合/薄膜复合膜/渗透汽化/乙醇脱水Key words
CQDs/in situ polymerization/thin-film composite membranes/pervaporation/ethanol dehy-dration分类
化学化工引用本文复制引用
张烨,吴艺凡,刘梦晴,顾培洋..原位聚合碳量子点改性聚酰胺膜与乙醇脱水分离性能[J].常州大学学报（自然科学版）,2025,37(5):8-18,11.基金项目
常州市领军型创新人才引进培育资助项目(CQ20210101) （CQ20210101）
江苏省精细石油化工重点实验室开放课题基金资助项目(KF2205). （KF2205）
