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Title: Ultrathin graphene oxide-based hollow fiber membranes with brush-like CO2-philic agent for highly efficient CO2 capture

Journal Article · · Nature Communications
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  1. Rensselaer Polytechnic Inst., Troy, NY (United States). Dept. of Chemical & Biological Engineering
  2. Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemical Engineering. Catalysis for Renewable Fuels Center
  3. Gas Technology Inst., Des Plaines, IL (United States)

Among the current CO2 capture technologies, membrane gas separation has many inherent advantages over other conventional techniques. However, fabricating gas separation membranes with both high CO2 permeance and high CO2/N2 selectivity, especially under wet conditions, is a challenge. In this study, sub-20-nm thick, layered graphene oxide (GO)-based hollow fiber membranes with grafted, brush-like CO2-philic agent alternating between GO layers are prepared by a facile coating process for highly efficient CO2/N2 separation under wet conditions. Piperazine, as an effective CO2-philic agent, is introduced as a carrier-brush into the GO nanochannels with chemical bonding. The membrane exhibits excellent separation performance under simulated flue gas conditions with CO2 permeance of 1,020 GPU and CO2/N2 selectivity as high as 680, demonstrating its potential for CO2 capture from flue gas. We expect this GO-based membrane structure combined with the facile coating process to facilitate the development of ultrathin GO-based membranes for CO2 capture.

Research Organization:
Gas Technology Institute, Des Plaines, IL (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0026383
OSTI ID:
1499977
Journal Information:
Nature Communications, Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 121 works
Citation information provided by
Web of Science

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Cited By (20)

Thermoresponsive Graphene Membranes with Reversible Gating Regularity for Smart Fluid Control journal February 2019
Bioinspired Graphene Oxide Membranes with Dual Transport Mechanisms for Precise Molecular Separation journal September 2019
Graphene‐Based Fibers: Recent Advances in Preparation and Application journal July 2019
Rational Design of Novel Catalysts with Atomic Layer Deposition for the Reduction of Carbon Dioxide journal August 2019
Optimization of the structural characteristics of CaO and its effective stabilization yield high-capacity CO2 sorbents journal June 2018
Construction of graphene oxide based mixed matrix membranes with CO 2 -philic sieving gas-transport channels through strong π–π interactions journal January 2018
Graphene-induced tuning of the d -spacing of graphene oxide composite nanofiltration membranes for frictionless capillary action-induced enhancement of water permeability journal January 2018
Fullerene-regulated graphene oxide nanosheet membranes with well-defined laminar nanochannels for precise molecule sieving journal January 2018
Two-dimensional nanosheet-based gas separation membranes journal January 2018
2D-dual-spacing channel membranes for high performance organic solvent nanofiltration journal January 2019
A naturally-derived supramolecular elastomer containing green-synthesized silver nanofibers for self-repairing E-skin sensor journal January 2019
Two-dimensional nanochannel membranes for molecular and ionic separations journal January 2020
High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target journal January 2019
Antifouling UV-treated GO/PES hollow fiber membranes in a membrane bioreactor (MBR) journal January 2019
Ultrastable sandwich graphene oxide hollow fiber membranes with confined interlayer spacing journal January 2019
Labyrinthine transport of hydrocarbons through grafted laminar CdTe nanosheet membranes journal January 2019
Novel carbon-based separation membranes composed of integrated zero- and one-dimensional nanomaterials journal January 2020
2D nanoporous materials: membrane platform for gas and liquid separations journal July 2019
Engineering Sub-Nanometer Channels in Two-Dimensional Materials for Membrane Gas Separation journal October 2018
Optimization of the structural characteristics of CaO and its effective stabilization yield high-capacity CO2 sorbents text January 2018

Figures / Tables (4)