Modified Zeolite/Polysulfone Mixed Matrix Membrane for Enhanced CO2/CH4 Separation
學年 110
學期 1
出版（發表）日期 2021-08-16
作品名稱 Modified Zeolite/Polysulfone Mixed Matrix Membrane for Enhanced CO2/CH4 Separation
作品名稱（其他語言）
著者 Lanisha Devi Anbealagan; Tiffany Yit Siew Ng; Thiam Leng Chew; Yin Fong Yeong; Siew Chun Low; Yit Thai Ong; Chii-Dong Ho; Zeinab Abbas Jawad
單位
出版者
著錄名稱、卷期、頁數 Membranes 11(8), 630
摘要 In recent years, mixed matrix membranes (MMMs) have received worldwide attention for their potential to offer superior gas permeation and separation performance involving CO2 and CH4. However, fabricating defect-free MMMs still remains as a challenge where the incorporation of fillers into MMMs has usually led to some issues including formation of undesirable interfacial voids, which may jeopardize the gas separation performance of the MMMs. This current work investigated the incorporation of zeolite RHO and silane-modified zeolite RHO (NH2–RHO) into polysulfone (PSf) based MMMs with the primary aim of enhancing the membrane’s gas permeation and separation performance. The synthesized zeolite RHO, NH2–RHO, and fabricated membranes were characterized by X-ray diffraction (XRD) analysis, Fourier transform infrared-attenuated total reflection (FTIR-ATR), thermogravimetric analysis (TGA) and field emission scanning election microscopy (FESEM). The effects of zeolite loading in the MMMs on the CO2/CH4 separation performance were investigated. By incorporating 1 wt% of zeolite RHO into the MMMs, the CO2 permeability and ideal CO2/CH4 selectivity slightly increased by 4.2% and 2.7%, respectively, compared to that of a pristine PSf membrane. On the other hand, a significant enhancement of 45% in ideal CO2/CH4 selectivity was attained by MMMs incorporated with 2 wt% of zeolite NH2-RHO compared to a pristine PSf membrane. Besides, all MMMs incorporated with zeolite NH2-RHO displayed higher ideal CO2/CH4 selectivity than that of the MMMs incorporated with zeolite RHO. By incorporating 1–3 wt% zeolite NH2-RHO into PSf matrix, MMMs without interfacial voids were successfully fabricated. Consequently, significant enhancement in ideal CO2/CH4 selectivity was enabled by the incorporation of zeolite NH2–RHO into MMMs.
關鍵字 mixed matrix membranes (MMMs);polysulfone;zeolite RHO;silane modification;CO2 separation
語言 en
ISSN 2077-0375
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 否
國別 CHE
公開徵稿
出版型式 ,電子版
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