渗透
傅里叶变换红外光谱
选择性
气体分离
材料科学
膜
化学工程
扫描电子显微镜
复合数
巴(单位)
分析化学(期刊)
复合材料
色谱法
化学
有机化学
催化作用
生物化学
物理
气象学
工程类
作者
Shahidah Zakariya,Yin Fong Yeong,Norwahyu Jusoh,Lian Huat Tan
出处
期刊:Polymers
[MDPI AG]
日期:2022-04-05
卷期号:14 (7): 1480-1480
被引量:1
标识
DOI:10.3390/polym14071480
摘要
Composite membranes comprising NH2-MIL-125(Ti)/PEBAX coated on PDMS/PSf were prepared in this work, and their gas separation performance for high CO2 feed gas was investigated under various operating circumstances, such as pressure and CO2 concentration, in mixed gas conditions. The functional groups and morphology of the prepared membranes were characterized by Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM). CO2 concentration and feed gas pressure were demonstrated to have a considerable impact on the CO2 and CH4 permeance, as well as the CO2/CH4 mixed gas selectivity of the resultant membrane. As CO2 concentration was raised from 14.5 vol % to 70 vol %, a trade-off between permeance and selectivity was found, as CO2 permeance increased by 136% and CO2/CH4 selectivity reduced by 42.17%. The membrane produced in this work exhibited pressure durability up to 9 bar and adequate gas separation performance at feed gas conditions consisting of high CO2 content.
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