Influence of ZIF-8 on properties of Ultem?1000 hollow fiber membrane for gas separation |
Authors: DUAN cuijia,CAO yiming, CHEN zan |
Units: 1.CenerTech Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China;2.Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China |
KeyWords: ZIF-8;polyetherimide;hollow fiber mixed matrix membrane;gas separation |
ClassificationCode:TQ028.8 |
year,volume(issue):pagination: 2020,40(3):88-94 |
Abstract: |
With high specific surface area and nanoscale ZIF-8 as dispersed phase and Ultem?1000 as continuous phase, Ultem?1000 hollow fiber membraneand ZIF-8/Ultem?1000 hollow fiber membrane were fabricated respectivelyby dry-wet spinning method to investigate the influence of ZIF-8 on properties of hollow fiber membranes. Results of SEM showed that the support layer of ZIF-8/Ultem?1000hollow fiber membrane was dominated by sponge pore structure and the inner surface of ZIF-8/Ultem?1000 hollow fiber membrane became porous. Meanwhile, it was demonstrated that the tensile strength of hollow fiber membrane with the addition of ZIF-8 was almost unchanged or even slightly increasedcomparedwithUltem?1000 hollow fiber membrane. Gas permeation test resultsindicated that both gas permeance and selectivity of ZIF-8/Ultem?1000 hollow fiber membranewere obviously improved compared with those of pure Ultem?1000 hollow fiber membrane: O2 permeance increased from 2.56 GPU to 3.56 GPU and O2/N2 selectivity increased from 5.81 to 7.74. |
Funds: |
中国海洋石油集团有限公司科技项目“分子筛膜材料的开发及其在海上天然气脱?H2O&CO2分离中的应用”(CNOOC-KJ135ZDXM35TJY006-2019);国家“八六三”计划项目“CO2分离膜材料及规模化制备技术”(批准号: 2012AA03A611) |
AuthorIntro: |
第一作者简介:段翠佳(1987-),女,河北石家庄,博士,工程师,膜分离技术,E-mail:duancj@cnooc.com.cn |
Reference: |
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