化工学报2025，Vol.76Issue(5)：2337-2347,11.DOI:10.11949/0438-1157.20241510
ZIF-67/PDMS复合膜分离废次烟草的中性香气组分
Separation of neutral aromatic compounds from tobacco waste by ZIF-67/PDMS composite membrane
摘要
Abstract
The separation of neutral aromatic compounds from tobacco waste is one of the important ways to recycle waste tobacco resources.Polyvinylidene fluoride(PVDF)was used as the base membrane and zeolite imidazolate skeleton material ZIF-67 was used as the modified filler to prepare polydimethylsiloxane(PDMS)pervaporation composite membrane for separation of neutral aroma components of tobacco.SEM,contact angle measuring instrument,FTIR and XRD were used to characterize the physical and chemical properties of the composite membrane,and the performance of composite membrane for pervaporation of aromatic compounds was investigated.The results show that ZIF-67 is physically blended with the PDMS matrix,enhancing the hydrophobicity of the membrane.With the increase of ZIF-67 content,the permeation flux and separation factor increase firstly and then decrease.The pervaporation separation performance reaches its optimum when ZIF-67 filling content was 5％(mass).The maximum permeation fluxes of the ZIF-67/PDMS membrane are 3.61,2.07 and 0.81 g·m-2·h-1,and the maximum separation factors are 115.5,191.2 and 109.1 for 2-phenylethanol,damascenone and dihydroactinidiolide,respectively.The separation efficiency of the composite membrane for actual tobacco extract was investigated,and the average fluxes of the three aromatic compounds are 16.2,11.6 and 9.8 mg·m-2·h-1,respectively.关键词
渗透汽化/聚二甲基硅氧烷/ZIF-67/中性香气组分/废次烟草Key words
pervaporation/PDMS/ZIF-67/neutral aromatic compounds/tobacco waste分类
化学工程引用本文复制引用
刘雨,蔡振波,纪利俊,马晓华..ZIF-67/PDMS复合膜分离废次烟草的中性香气组分[J].化工学报,2025,76(5):2337-2347,11.基金项目
上海烟草集团开放研究基金项目(K2023-1-014P) （K2023-1-014P）
