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Carbon Capture via Mixed-Matrix Membranes Containing Nanomaterials and Metal–Organic Frameworks

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Membranes for Environmental Applications

Part of the book series: Environmental Chemistry for a Sustainable World ((ECSW,volume 42))

Abstract

Global warming issues arise due to the emission of carbon dioxide gas into the atmosphere. Carbon dioxide concentration in the environment has appreciably increased due to burning of carbon-based fossil fuels which releases large quantities of greenhouse gas into the atmosphere. Global warming can be controlled by minimizing greenhouse gas emissions into the atmosphere by capturing carbon dioxide from current effluent sources by applying carbon capture and sequestration technology. Carbon dioxide can be readily captured from post-combustion flue gas using mixed-matrix membranes filled with various nanofillers. This chapter comprehensively discusses recent developments made in the field of carbon capture from post-combustion flue gas using polymer-based mixed-matrix membranes containing different microporous metal–organic frameworks and other nanomaterials to signify their prospective application on an industrial scale. A comparison of membrane separation technology with conventional processes in terms of carbon capture performance is made here. Carbon capture performance of various mixed-matrix membranes prepared from different polymer matrices and selected microporous nanofillers is reviewed in terms of CO2 permeability and CO2/N2 selectivity. Notable polymer matrices used to prepare mixed-matrix membranes include polysulfone, polyimide, polydimethylsiloxane, Matrimid®, Ultrason®, Pebax, SPEEK, and Ultem®. Currently investigated prominent nanomaterials comprise carbon nanotubes, graphene oxide nanosheets, and silica, while noteworthy microporous metal–organic frameworks encompass HKUST-1, ZIF-7, ZIF-8, ZIF-300, ZIF-301, ZIF-302, MIL-53, and MIL-101. Nanomaterial-filled membranes offer superior carbon dioxide separation performance as compared to their respective pure polymer counterparts and higher selectivities than the associated pure metal–organic framework membranes. Main advantages of these membranes include easy processability, casting and handling, improved mechanical and chemical properties, and superior gas separation performances.

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Correspondence to Muhammad Sarfraz .

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Sarfraz, M. (2020). Carbon Capture via Mixed-Matrix Membranes Containing Nanomaterials and Metal–Organic Frameworks. In: Zhang, Z., Zhang, W., Lichtfouse, E. (eds) Membranes for Environmental Applications. Environmental Chemistry for a Sustainable World, vol 42. Springer, Cham. https://doi.org/10.1007/978-3-030-33978-4_2

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