塔里木大学学报2024，Vol.36Issue(2)：30-39,10.DOI:10.3969/j.issn.1009-0568.2024.02.004
基于二维蛭石纳米片混合基质膜分离CO2/CH4性能研究
Study on the separation performance on CO2/CH4 of mixed matrix membrane based on two-dimensional vermiculite nanosheet
摘要
Abstract
In this study,polyether-polyamide block copolymer(Pebax)was used as the polymer membrane matrix and two-dimension-al vermiculite nanosheets(VMT)as the filler to prepare mixed matrix membranes(MMMs)with different filler amounts.The structure of VMT nanosheets and their arrangement within the MMMs were used to construct transport channels for CO2 within the membrane,which improved the separation performance of membrane on CO2/CH4.The characterization and gas separation properties of Pebax-VMT MMMs were investigated,showing that the separation of MMMs in CO2/CH4 system was significantly enhanced after being filled with VMT.The Pebax-VMT MMMs exhibited optimal CO2 separation performance with a CO2 permeation coefficient of 489.31 Barrer and a CO2/CH4 selectivity of 39.96 at a filler volume of 5 wt%.Compared with pure Pebax membrane,CO2 permeation coefficient in-creased by 98.3%and CO2/CH4 selectivity increased by 84.2%.关键词
聚醚-聚酰胺嵌段共聚物/二维蛭石纳米片/CO2/CH4分离/CO2通道Key words
Pebax/two-dimensional vermiculite nanosheet/CO2/CH4 separation/CO2 transport channels分类
化学化工引用本文复制引用
侯进鹏,马涛,李征光,曾文涛,田维亮..基于二维蛭石纳米片混合基质膜分离CO2/CH4性能研究[J].塔里木大学学报,2024,36(2):30-39,10.基金项目
塔里木大学校长基金硕士项目(TDZKSS202123) （TDZKSS202123）
北京化工大学有机无机复合材料国家重点实验室开放课题项目(oic-202101011) （oic-202101011）
