Covalently Modified Graphene Oxide and Polymer of Intrinsic Microporosity (PIM-1) in Mixed Matrix Thin-Film Composite Membranes

Nanoscale Research Letters

Afig M. Nabiyev¹  Rasim M. Alosmanov¹  Irada A. Bunyad-zadeh¹  Sergey Shishatskiy²  Elvin M. Aliyev²  Muntazim Munir Khan²  Volkan Filiz² 

[1] Baku State University;Helmholtz-Zentrum Geesthacht, Institute of Polymer Research;

关键词: Graphene oxide;    Modified graphene oxide;    Thin-film composite membrane;    Mixed matrix membrane;    Gas separation;   

DOI  :  10.1186/s11671-018-2771-3

来源: DOAJ

【 摘 要 】

Abstract In this study, mixed matrix membranes (MMMs) consisting of graphene oxide (GO) and functionalized graphene oxide (FGO) incorporated in a polymer of intrinsic microporosity (PIM-1) serving as a polymer matrix have been fabricated by dip-coating method, and their single gas transport properties were investigated. Successfully surface-modified GOs were characterized by Fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The effect of FGO loading on MMM morphology and performance was investigated by varying the FGO content in polymer matrix from 9 to 84 wt.%. Use of high FGO content in the polymer matrix helped to reveal difference in interaction of functionalized fillers with PIM-1 and even to discuss the change of FGO stiffness and filler alignment to the membrane surface depending on functional group nature.

【 授权许可】

Unknown