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Title: Covalent organic frameworks (COFs)-incorporated thin film nanocomposite (TFN) membranes for high-flux organic solvent nanofiltration (OSN)

Abstract

This paper reports a new class of thin film nanocomposite (TFN) membranes incorporated with covalent organic frameworks (COFs) nanoparticles in the polyamide skin layer and having enhanced solvent (ethanol) permeation flux and high solute rejection for organic solvent nanofiltration (OSN). These OSN membranes were prepared via interfacial polymerization of m-phenylenediamine (MPD) and trimesoyl chloride with the presence of COFs nanoparticles in the MPD aqueous solution, followed by chemical crosslinking and solvent activation. The prepared TFN membranes exhibited an improved surface hydrophilicity and a decreased skin layer thickness, which leading to a 46.7% increment in the ethanol permeance (up to 79.8 L m–2 h–1 MPa–1) compared to those COFs-free membranes, as well as an increased Rhodamine B (479 Da) rejection (up to 99.4%). Moreover, our prepared TFN OSN membranes exhibited an excellent solvent resistance after being statically immersed in N, N-dimethylformamide (DMF) at ambient temperature over 100 days, and after being consecutively cross-flow filtrated using Rose Bengal/DMF solution at ambient temperature over 7 days, both with no significant changes in the separation performance. Moreover, they showed only minor decrease in flux and rejection after being statically immersed in DMF at 80 °C over 14 days, which provides a strong potential inmore » OSN applications.« less

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [2]
  1. Ocean Univ. of China, Qingdao (China)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1502586
Alternate Identifier(s):
OSTI ID: 1636514
Grant/Contract Number:  
AC05-00OR22725; WBS 2.5.5.507
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Membrane Science
Additional Journal Information:
Journal Volume: 572; Journal Issue: C; Journal ID: ISSN 0376-7388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Covalent organic frameworks (COFs); Organic solvent nanofiltration (OSN); Thin film nanocomposite (TFN); Interfacial polymerization (IP)

Citation Formats

Li, Can, Li, Shuxuan, Tian, Long, Zhang, Jinmiao, Su, Baowei, and Hu, Michael Z. Covalent organic frameworks (COFs)-incorporated thin film nanocomposite (TFN) membranes for high-flux organic solvent nanofiltration (OSN). United States: N. p., 2018. Web. doi:10.1016/j.memsci.2018.11.005.
Li, Can, Li, Shuxuan, Tian, Long, Zhang, Jinmiao, Su, Baowei, & Hu, Michael Z. Covalent organic frameworks (COFs)-incorporated thin film nanocomposite (TFN) membranes for high-flux organic solvent nanofiltration (OSN). United States. doi:https://doi.org/10.1016/j.memsci.2018.11.005
Li, Can, Li, Shuxuan, Tian, Long, Zhang, Jinmiao, Su, Baowei, and Hu, Michael Z. Wed . "Covalent organic frameworks (COFs)-incorporated thin film nanocomposite (TFN) membranes for high-flux organic solvent nanofiltration (OSN)". United States. doi:https://doi.org/10.1016/j.memsci.2018.11.005. https://www.osti.gov/servlets/purl/1502586.
@article{osti_1502586,
title = {Covalent organic frameworks (COFs)-incorporated thin film nanocomposite (TFN) membranes for high-flux organic solvent nanofiltration (OSN)},
author = {Li, Can and Li, Shuxuan and Tian, Long and Zhang, Jinmiao and Su, Baowei and Hu, Michael Z.},
abstractNote = {This paper reports a new class of thin film nanocomposite (TFN) membranes incorporated with covalent organic frameworks (COFs) nanoparticles in the polyamide skin layer and having enhanced solvent (ethanol) permeation flux and high solute rejection for organic solvent nanofiltration (OSN). These OSN membranes were prepared via interfacial polymerization of m-phenylenediamine (MPD) and trimesoyl chloride with the presence of COFs nanoparticles in the MPD aqueous solution, followed by chemical crosslinking and solvent activation. The prepared TFN membranes exhibited an improved surface hydrophilicity and a decreased skin layer thickness, which leading to a 46.7% increment in the ethanol permeance (up to 79.8 L m–2 h–1 MPa–1) compared to those COFs-free membranes, as well as an increased Rhodamine B (479 Da) rejection (up to 99.4%). Moreover, our prepared TFN OSN membranes exhibited an excellent solvent resistance after being statically immersed in N, N-dimethylformamide (DMF) at ambient temperature over 100 days, and after being consecutively cross-flow filtrated using Rose Bengal/DMF solution at ambient temperature over 7 days, both with no significant changes in the separation performance. Moreover, they showed only minor decrease in flux and rejection after being statically immersed in DMF at 80 °C over 14 days, which provides a strong potential in OSN applications.},
doi = {10.1016/j.memsci.2018.11.005},
journal = {Journal of Membrane Science},
number = C,
volume = 572,
place = {United States},
year = {2018},
month = {11}
}

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