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Thin film composite nanofiltration membrane prepared by the interfacial polymerization of 1,2,4,5-benzene tetracarbonyl chloride on the mixed amines cross-linked poly(ether imide) support.
- Source :
-
Journal of Membrane Science . Dec2016, Vol. 520, p19-28. 10p. - Publication Year :
- 2016
-
Abstract
- A novel thin film composite (TFC) nanofiltration (NF) membrane was prepared by the interfacial polymerization of 1,2,4,5-benzene tetracarbonyl chloride (BTC) on the cross-linked poly(ether imide) (PEI) support via the mixed amines of the linear ethylenediamine (EDA) and the hyperbranched poly(ethyleneimine) (HPEI). Characterized by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, Raman mapping, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), etc.; it is indicated that the TFC NF membrane is synthesized through the interfacial polymerization between BTC and the terminal amine groups on the EDA-HPEI cross-linked PEI support. The optimal TFC NF membrane exhibited the methanol permeance of 14.2 L m −2 h −1 MPa −1 and a RB rejection of 100%. After the solvent activation of dimethylformamide (DMF) and dimethylsulfoxide (DMSO), the TFC NF membrane exhibited the methanol permeance of 30.4 L m −2 h −1 MPa −1 and 51.5 L m −2 h −1 MPa −1 with the RB rejection of 90.4% and 74.4%, respectively. Characterized by ATR-FTIR, SEM and Doppler broadening energy spectroscopy (DBES), the effects of solvent activation via DMF and DMSO respectively were investigated on the PEI-based TFC NF membranes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03767388
- Volume :
- 520
- Database :
- Academic Search Index
- Journal :
- Journal of Membrane Science
- Publication Type :
- Academic Journal
- Accession number :
- 118178979
- Full Text :
- https://doi.org/10.1016/j.memsci.2016.07.050