Next Article in Journal
Revealing Plasma Membrane Nano-Domains with Diffusion Analysis Methods
Next Article in Special Issue
Review of Transport Phenomena and Popular Modelling Approaches in Membrane Distillation
Previous Article in Journal
Preparation and Evaluation of Nanocomposite Sodalite/α-Al2O3 Tubular Membranes for H2/CO2 Separation
Previous Article in Special Issue
Direct Measurements of Electroviscous Phenomena in Nafion Membranes
Article

Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation

1
Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
2
King Abdullah University of Science and Technology (KAUST), Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials Center (AMPM), Thuwal 23955-6900, Saudi Arabia
3
Ralph E Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
*
Authors to whom correspondence should be addressed.
Membranes 2020, 10(11), 313; https://doi.org/10.3390/membranes10110313
Received: 18 September 2020 / Revised: 22 October 2020 / Accepted: 23 October 2020 / Published: 29 October 2020
Copper-based metal–organic frameworks (MOFs) with different oxidation states and near-uniform particle sizes have been successfully synthesized. Mixed-matrix polyimide membranes incorporating 0.1–7 wt% of Cu(II) benzene-1,2,5-tricarboxylic acid (Cu(II)BTC), Cu(I/II)BTC and Cu(I) 1,2-ethanedisulfonic acid (EDS) (Cu(I)EDS) MOFs were fabricated via non-solvent-induced phase inversion process. These membranes are found to be solvent resistant and mechanically stable. Liquid phase nanofiltration experiments were performed to separate toluene from n-heptane at room temperature. These membranes demonstrate preferential adsorption and permeation of the aromatic toluene over aliphatic n-heptane. The amount of MOF particles incorporated, the oxidation state of the Cu ion and membrane, and barrier layer thickness have a significant impact on the separation factor. Toluene/heptane separation factor at 1.47, 1.67 and 1.79 can be obtained for membranes incorporating 7 wt% Cu(II)BTC, Cu(I/II)BTC and Cu(I)EDS respectively at room temperature. View Full-Text
Keywords: metal–organic frameworks (MOFs); mixed-matrix membranes; solvent-resistant nanofiltration; toluene-heptane separation; separation factor metal–organic frameworks (MOFs); mixed-matrix membranes; solvent-resistant nanofiltration; toluene-heptane separation; separation factor
Show Figures

Graphical abstract

MDPI and ACS Style

Upadhyaya, L.; Chiao, Y.-H.; Wickramasinghe, S.R.; Qian, X. Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation. Membranes 2020, 10, 313. https://doi.org/10.3390/membranes10110313

AMA Style

Upadhyaya L, Chiao Y-H, Wickramasinghe SR, Qian X. Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation. Membranes. 2020; 10(11):313. https://doi.org/10.3390/membranes10110313

Chicago/Turabian Style

Upadhyaya, Lakshmeesha, Yu-Hsuan Chiao, S. R. Wickramasinghe, and Xianghong Qian. 2020. "Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation" Membranes 10, no. 11: 313. https://doi.org/10.3390/membranes10110313

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop